I am getting following warning in  eclipse:

&gt; Unconditional layout inflation from view adapter: Should use View Holder pattern (use recycled view passed into this method as the second parameter) for smoother scrolling.

on:

    convertView = vi.inflate(R.layout.activity_friend_list_row, parent, false);

I have a base adapter with a CheckBox implemented and I have added a tag to make the CheckBox work.

Here is the code:

     public View getView(final int position, View convertView, ViewGroup parent) 
	  {

        ViewHolder mViewHolder;
		mViewHolder = new ViewHolder();
		LayoutInflater vi = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

		convertView = vi.inflate(R.layout.activity_friend_list_row, parent, false);

		mViewHolder.cb = (CheckBox) convertView.findViewById(R.id.checkBox);

		convertView.setTag(mViewHolder);

		if (InviteFriends.isChecked[position] == true)
		{
			mViewHolder.cb.setChecked(true);
		}
		else
		{
			mViewHolder.cb.setChecked(false);
		}

		mViewHolder.cb.setOnCheckedChangeListener(new OnCheckedChangeListener() 
		{
			@Override
			public void onCheckedChanged(CompoundButton buttonView, boolean ischecked) 
			{
				if (buttonView.isChecked())
				{
					InviteFriends.isChecked[position] = true;

				}
				else
				{
					InviteFriends.isChecked[position] = false;
				}
			}
		});

		TextView friendsname  = (TextView) convertView.findViewById(R.id.friendsName); // title
		ImageView thumb_image = (ImageView) convertView.findViewById(R.id.list_image); // thumb image

		HashMap&lt;String, String&gt; song = new HashMap&lt;String, String&gt;();
		song = data.get(position);

		// Setting all values in listview
		friendsname.setText(song.get(InviteFriends.KEY_DISPLAY_NAME));
		imageLoader.DisplayImage(song.get(InviteFriends.KEY_IMAGEPROFILE_URL), thumb_image);


		return convertView;
	}

 The results are coming up properly. How do I fix this warning? I am not able to get a solution for this yet?

Thanks!

Unconditional layout, inflation from view adapter: Should use View Holder pattern

I&#39;m trying to create a `DialogFragment` using a custom view in an `AlertDialog`. This view must be inflated from xml. In my `DialogFragment` class I have:

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        return new AlertDialog.Builder(getActivity())
            .setTitle(&quot;Title&quot;)
            .setView(getActivity().getLayoutInflater().inflate(R.layout.dialog, null))
            .setPositiveButton(android.R.string.ok, this)
            .setNegativeButton(android.R.string.cancel, null)
            .create();
    }

I have tried other inflation methods for `.setView()` such as:

    .setView(getActivity().getLayoutInflater().inflate(R.layout.dialog, (ViewGroup) getView(), false))

and

    .setView(getActivity().getLayoutInflater().inflate(R.layout.dialog, (ViewGroup) getTargetFragment().getView(), false))

After setting the target fragment in the fragment that is showing this dialog.

All of these attempts to inflate my custom view result in the following exception:

    E/AndroidRuntime(32352): android.util.AndroidRuntimeException: requestFeature() must be called before adding content
    E/AndroidRuntime(32352):        at com.android.internal.policy.impl.PhoneWindow.requestFeature(PhoneWindow.java:214)
    E/AndroidRuntime(32352):        at com.android.internal.app.AlertController.installContent(AlertController.java:248)
    E/AndroidRuntime(32352):        at android.app.AlertDialog.onCreate(AlertDialog.java:314)
    E/AndroidRuntime(32352):        at android.app.Dialog.dispatchOnCreate(Dialog.java:335)
    E/AndroidRuntime(32352):        at android.app.Dialog.show(Dialog.java:248)
    E/AndroidRuntime(32352):        at android.support.v4.app.DialogFragment.onStart(DialogFragment.java:339)
    E/AndroidRuntime(32352):        at android.support.v4.app.Fragment.performStart(Fragment.java:1288)
    E/AndroidRuntime(32352):        at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:873)
    E/AndroidRuntime(32352):        at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1041)
    E/AndroidRuntime(32352):        at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:625)
    E/AndroidRuntime(32352):        at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1360)
    E/AndroidRuntime(32352):        at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:411)
    E/AndroidRuntime(32352):        at android.os.Handler.handleCallback(Handler.java:587)
    E/AndroidRuntime(32352):        at android.os.Handler.dispatchMessage(Handler.java:92)
    E/AndroidRuntime(32352):        at android.os.Looper.loop(Looper.java:132)
    E/AndroidRuntime(32352):        at android.app.ActivityThread.main(ActivityThread.java:4028)
    E/AndroidRuntime(32352):        at java.lang.reflect.Method.invokeNative(Native Method)
    E/AndroidRuntime(32352):        at java.lang.reflect.Method.invoke(Method.java:491)
    E/AndroidRuntime(32352):        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:844)
    E/AndroidRuntime(32352):        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)
    E/AndroidRuntime(32352):        at dalvik.system.NativeStart.main(Native Method)

While if I try to use the `DialogFragment`&#39;s `getLayoutInflator(Bundle)` like this:

    .setView(getLayoutInflater(savedInstanceState).inflate(R.layout.dialog, null))

I get a `StackOverflowError`.

Does anyone know how to inflate a custom view for an `AlertDialog` in a `DialogFragment`?

Problem inflating custom view for AlertDialog in DialogFragment

Passing null for root studio gives me this warning:

&gt;Avoid passing null as the view root (need to resolve layout parameters on the inflated layout&#39;s root element)
 
It is showing a null value in `getGroupView`. Please help.


    public class ExpandableListAdapter extends BaseExpandableListAdapter {
    
        private Context _context;
        private List&lt;String&gt; _listDataHeader; // header titles
        // child data in format of header title, child title
        private HashMap&lt;String, List&lt;String&gt;&gt; _listDataChild;
    
        public ExpandableListAdapter(Context context, List&lt;String&gt; listDataHeader,
                                     HashMap&lt;String, List&lt;String&gt;&gt; listChildData) {
            super();
            this._context = context;
            this._listDataHeader = listDataHeader;
            this._listDataChild = listChildData;
        }
    
        @Override
        public Object getChild(int groupPosition, int childPosititon) {
            return this._listDataChild.get(this._listDataHeader.get(groupPosition))
                    .get(childPosititon);
        }
    
        @Override
        public long getChildId(int groupPosition, int childPosition) {
            return childPosition;
        }
    
        @Override
        public View getChildView(int groupPosition, final int childPosition,
                                 boolean isLastChild, View convertView, ViewGroup parent) {
    
            final String childText = (String) getChild(groupPosition, childPosition);
    
            if (convertView == null) {
                LayoutInflater infalInflater = (LayoutInflater) this._context
                        .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                convertView = infalInflater.inflate(R.layout.list_item, null);
    
    
            }
    
            TextView txtListChild = (TextView) convertView
                    .findViewById(R.id.lblListItem);
    
            txtListChild.setText(childText);
            return convertView;
        }
    
        @Override
        public int getChildrenCount(int groupPosition) {
            return this._listDataChild.get(this._listDataHeader.get(groupPosition))
                    .size();
        }
    
        @Override
        public Object getGroup(int groupPosition) {
            return this._listDataHeader.get(groupPosition);
        }
    
        @Override
        public int getGroupCount() {
            return this._listDataHeader.size();
        }
    
        @Override
        public long getGroupId(int groupPosition) {
            return groupPosition;
        }
    
        @Override
        public View getGroupView(int groupPosition, boolean isExpanded,
                                 View convertView, ViewGroup parent) {
            String headerTitle = (String) getGroup(groupPosition);
            if (convertView == null) {
                LayoutInflater infalInflater = (LayoutInflater) this._context
                        .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                convertView = infalInflater.inflate(R.layout.list_group, null);
            }
    
            TextView lblListHeader = (TextView) convertView
                    .findViewById(R.id.lblListHeader);
            lblListHeader.setTypeface(null, Typeface.BOLD);
            lblListHeader.setText(headerTitle);
    
            return convertView;
        }
    
        @Override
        public boolean hasStableIds() {
            return false;
        }
    
        @Override
        public boolean isChildSelectable(int groupPosition, int childPosition) {
            return true;
        }
    
    }



Avoid passing null as the view root (need to resolve layout parameters on the inflated layout&#39;s root element)

The [`LayoutInflater.inflate`][1] documentation isn&#39;t exactly clear to me about the purpose of the `attachToRoot` parameter. 

&gt; *attachToRoot*: whether the inflated hierarchy should be attached to the root parameter? If false, root is only used to create the correct
&gt; subclass of LayoutParams for the root view in the XML.

Could someone please explain in more detail, specifically what the root view is, and maybe show an example of a change in behavior between `true` and `false` values?


  [1]: http://developer.android.com/reference/android/view/LayoutInflater.html#inflate%28org.xmlpull.v1.XmlPullParser,%20android.view.ViewGroup,%20boolean%29

What does the LayoutInflater attachToRoot parameter mean?

I have a layout defined in XML. It contains also: 

	&lt;RelativeLayout
		android:id=&quot;@+id/item&quot;
		android:layout_width=&quot;fill_parent&quot;
		android:layout_height=&quot;wrap_content&quot;
	/&gt;

I would like to inflate this RelativeView with other XML layout file. I may use different layouts depending on a situation. How should I do it? I was trying different variations of 

    RelativeLayout item = (RelativeLayout) findViewById(R.id.item);
    item.inflate(...)

But none of them worked fine.

How to inflate one view with a layout

What does need to be imported or how can I call the Layout inflater in places other than activity?

    public static void method(Context context){
        //this doesn&#39;t work the getLayoutInflater method could not be found
        LayoutInflater inflater = getLayoutInflater();
        // this also doesn&#39;t work 
        LayoutInflater inflater = context.getLayoutInflater();
    }

I am able to call `getLayoutInflater` only in activity, is that an restriction? What if I want to create custom dialog and I want to inflate view for it, or what if I want to have Toast message with custom view that is shown from a service, I only have the context from the service I do not have any activity but I want to show custom message.

I need the inflater in places in the code that isn&#39;t in the activity class.

How can I do this ?



Call getLayoutInflater() in places not in activity

Can I change the background color of a Menu item in Android?

Please let me know if anyone have any solution to this. The last option will be obviously to customize it but is there any way for changing the text color without customizing it.

How to change the Text color of Menu item in Android?

I have placed `setHasOptionsMenu(true)` inside `onCreateView`, but I still can&#39;t call `onCreateOptionsMenu` inside fragments.

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
                             Bundle savedInstanceState) {	
       setHasOptionsMenu(true);				
       return inflater.inflate(R.layout.facesheet, container, false);
    }

Below is my `onCreateOptionsMenu` code.

    @Override
    public boolean onCreateOptionsMenu(com.actionbarsherlock.view.Menu menu) {
        getSupportMenuInflater().inflate(R.menu.layout, menu);
        return (super.onCreateOptionsMenu(menu));
    }

The error message I get: 

&gt; The method `onCreateOptionsMenu(Menu)` of type Fragment must override or implement a supertype method.

onCreateOptionsMenu inside Fragments

I get the lint warning, `Avoid passing null as the view root` when inflating views with `null` as `parent`, like:

    LayoutInflater.from(context).inflate(R.layout.dialog_edit, null);

However, the view is to be used as the content of an `AlertDialog`, using `setView` on `AlertDialog.Builder`, so I don&#39;t know what should be passed as the `parent`.

What do you think the `parent` should be in this case?

&quot;Avoid passing null as the view root&quot; warning when inflating view for use by AlertDialog

I have a horizontal `LinearLayout` containing a `TextView` followed by a `Spinner` next to it. This `LinearLayout` is dynamically inflated multiple times in a fixed vertical `LinearLayout` contained within a `RelativeLayout`.

The problem is that since I switched from `Theme.light` to `Theme.holo.light`, the last line of the `TextView` gets cut in half. This happens when the dynamic text is long and spans more than one row.

![enter image description here][1]

I have been able to fix this by adding bottom padding to the horizontal `LinearLayout` containing the `TextView` and `Spinner`.

This does not feel like a fix, but more of a hack. Can someone please give me some advice on how to properly fix this?

I have also read some other questions, but none seem to help.

Horizontal Linear layout:

    &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
    &lt;LinearLayout xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
        android:layout_width=&quot;wrap_content&quot;
        android:layout_height=&quot;wrap_content&quot;
        android:orientation=&quot;horizontal&quot;&gt;
    
        &lt;TextView
            android:id=&quot;@+id/textView1&quot;
            android:layout_width=&quot;150dp&quot;
            android:layout_height=&quot;wrap_content&quot;
            android:layout_marginRight=&quot;20dp&quot;
            android:text=&quot;TextView&quot;/&gt;
    
        &lt;Spinner
            android:id=&quot;@+id/spinner1&quot;
            android:layout_width=&quot;wrap_content&quot;
            android:layout_height=&quot;wrap_content&quot;/&gt;
    
    &lt;/LinearLayout&gt;

Relative layout where above layout is dynamically inflated at Linear Layout with id ll2_7:

    &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
    &lt;RelativeLayout xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
        android:layout_width=&quot;match_parent&quot;
        android:layout_height=&quot;match_parent&quot; &gt;
    
        &lt;ScrollView
            android:id=&quot;@+id/scrollView&quot;
            android:layout_width=&quot;fill_parent&quot;
            android:layout_height=&quot;wrap_content&quot;
            android:layout_above=&quot;@+id/relLayoutButtonNext&quot;
            android:layout_below=&quot;@id/textView1&quot; &gt;
    
            &lt;RelativeLayout
                android:layout_width=&quot;fill_parent&quot;
                android:layout_height=&quot;wrap_content&quot;
                android:paddingBottom=&quot;20dp&quot;
                android:paddingLeft=&quot;10dp&quot;
                android:paddingRight=&quot;10dp&quot;
                android:paddingTop=&quot;10dp&quot; &gt;
    
                &lt;TextView
                    android:id=&quot;@+id/textView10&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:paddingRight=&quot;30dp&quot;
                    android:text=&quot;2.7&quot; /&gt;
    
                &lt;TextView
                    android:id=&quot;@+id/textView11&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_marginBottom=&quot;10dp&quot;
                    android:layout_toRightOf=&quot;@id/textView10&quot;
                    android:text=&quot;@string/question2_7&quot; /&gt;
    
    
                &lt;LinearLayout
                    android:id=&quot;@+id/ll2_7&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_alignLeft=&quot;@+id/textView11&quot;
                    android:layout_below=&quot;@+id/textView11&quot;
                    android:orientation=&quot;vertical&quot; android:layout_marginBottom=&quot;20dp&quot;&gt;
                &lt;/LinearLayout&gt;
    
            &lt;/RelativeLayout&gt;
    
        &lt;/ScrollView&gt;
    
    &lt;/RelativeLayout&gt;

**EDIT:**
Here is the complete layout xml for above:

    &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
    &lt;RelativeLayout xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
        android:layout_width=&quot;match_parent&quot;
        android:layout_height=&quot;match_parent&quot; &gt;
    
        &lt;TextView
            android:id=&quot;@+id/textView1&quot;
            style=&quot;@style/question_section_title&quot;
            android:layout_width=&quot;wrap_content&quot;
            android:layout_height=&quot;wrap_content&quot;
            android:layout_alignParentLeft=&quot;true&quot;
            android:layout_alignParentTop=&quot;true&quot;
            android:text=&quot;@string/question2_header&quot; /&gt;
    
      	&lt;RelativeLayout
            android:id=&quot;@+id/relLayoutButtonNext&quot;
            android:layout_width=&quot;fill_parent&quot;
            android:layout_height=&quot;wrap_content&quot;
            android:layout_alignParentBottom=&quot;true&quot;
            android:background=&quot;@color/bottomBar&quot;
            android:paddingBottom=&quot;3dp&quot;
            android:paddingLeft=&quot;50dp&quot;
            android:paddingRight=&quot;50dp&quot;
            android:paddingTop=&quot;3dp&quot; &gt;
    
            &lt;Button
                android:id=&quot;@+id/buttonNext&quot;
                android:layout_width=&quot;180dp&quot;
                android:layout_height=&quot;wrap_content&quot;
                android:layout_alignParentRight=&quot;true&quot;
                android:onClick=&quot;nextStep&quot;
                android:text=&quot;Next Section&quot;
                android:textSize=&quot;20sp&quot; /&gt;
    
            &lt;Button
                android:id=&quot;@+id/buttonPrevious&quot;
                android:layout_width=&quot;180dp&quot;
                android:layout_height=&quot;wrap_content&quot;
                android:layout_alignParentLeft=&quot;true&quot;
                android:layout_alignParentTop=&quot;true&quot;
                android:onClick=&quot;previousStep&quot;
                android:text=&quot;Previous Section&quot;
                android:textSize=&quot;20sp&quot; /&gt;
        &lt;/RelativeLayout&gt;
    
    
        &lt;ScrollView
            android:id=&quot;@+id/scrollView&quot;
            android:layout_width=&quot;fill_parent&quot;
            android:layout_height=&quot;wrap_content&quot;
            android:layout_above=&quot;@+id/relLayoutButtonNext&quot;
            android:layout_below=&quot;@id/textView1&quot; &gt;
    
    
    
            &lt;RelativeLayout
                android:layout_width=&quot;fill_parent&quot;
                android:layout_height=&quot;wrap_content&quot;
                android:paddingBottom=&quot;20dp&quot;
                android:paddingLeft=&quot;10dp&quot;
                android:paddingRight=&quot;10dp&quot;
                android:paddingTop=&quot;10dp&quot; &gt;
    
                &lt;TextView
                    android:id=&quot;@+id/textView10&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:paddingRight=&quot;30dp&quot;
                    android:text=&quot;2.7&quot; /&gt;
    
                &lt;TextView
                    android:id=&quot;@+id/textView11&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_marginBottom=&quot;10dp&quot;
                    android:layout_toRightOf=&quot;@id/textView10&quot;
                    android:text=&quot;@string/question2_7&quot; /&gt;
    
    
                &lt;LinearLayout
                    android:id=&quot;@+id/ll2_7&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_alignLeft=&quot;@+id/textView11&quot;
                    android:layout_below=&quot;@+id/textView11&quot;
                    android:orientation=&quot;vertical&quot; android:layout_marginBottom=&quot;20dp&quot;&gt;
    
                &lt;/LinearLayout&gt;
    
                &lt;TextView
                    android:id=&quot;@+id/textView2&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_alignLeft=&quot;@+id/textView10&quot;
                    android:layout_below=&quot;@+id/ll2_7&quot;
                    android:text=&quot;2.8&quot; /&gt;
    
                &lt;TextView
                    android:id=&quot;@+id/textView3&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_below=&quot;@+id/ll2_7&quot;
                    android:layout_toRightOf=&quot;@+id/textView10&quot;
                    android:text=&quot;@string/question2_8&quot; android:layout_marginBottom=&quot;10dp&quot;/&gt;
    
    
                &lt;LinearLayout
                    android:id=&quot;@+id/ll2_8&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_alignLeft=&quot;@+id/textView3&quot;
                    android:layout_below=&quot;@+id/textView3&quot;
                    android:layout_marginBottom=&quot;20dp&quot;
                    android:orientation=&quot;vertical&quot; &gt;
    
                &lt;/LinearLayout&gt;
    
                &lt;TextView
                    android:id=&quot;@+id/textView4&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_alignLeft=&quot;@+id/textView2&quot;
                    android:layout_below=&quot;@+id/ll2_8&quot;
                    android:text=&quot;2.9&quot; /&gt;
    
                &lt;TextView
                    android:id=&quot;@+id/textView5&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_below=&quot;@+id/ll2_8&quot;
                    android:layout_toRightOf=&quot;@+id/textView10&quot;
                    android:text=&quot;@string/question2_9&quot; android:layout_marginBottom=&quot;10dp&quot;/&gt;
    
    
                &lt;LinearLayout
                    android:id=&quot;@+id/ll2_9&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_below=&quot;@+id/textView5&quot;
                    android:layout_toRightOf=&quot;@+id/textView10&quot;
                    android:orientation=&quot;vertical&quot; android:layout_marginBottom=&quot;20dp&quot;&gt;
    
                &lt;/LinearLayout&gt;
    
                &lt;TextView
                    android:id=&quot;@+id/textView6&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_alignLeft=&quot;@+id/textView4&quot;
                    android:layout_below=&quot;@+id/ll2_9&quot;
                    android:text=&quot;2.10&quot; /&gt;
    
                &lt;TextView
                    android:id=&quot;@+id/textView7&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_below=&quot;@+id/ll2_9&quot;
                    android:layout_toRightOf=&quot;@+id/textView10&quot;
                    android:text=&quot;@string/question2_10&quot; android:layout_marginBottom=&quot;10dp&quot;/&gt;
    
    
                &lt;LinearLayout
                    android:id=&quot;@+id/ll2_10&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_below=&quot;@+id/textView7&quot;
                    android:layout_marginBottom=&quot;20dp&quot;
                    android:layout_toRightOf=&quot;@+id/textView10&quot;
                    android:orientation=&quot;vertical&quot; &gt;
    
                &lt;/LinearLayout&gt;
    
                &lt;TextView
                    android:id=&quot;@+id/textView8&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_alignLeft=&quot;@+id/textView6&quot;
                    android:layout_below=&quot;@+id/ll2_10&quot;
                    android:text=&quot;2.11&quot; /&gt;
    
                &lt;TextView
                    android:id=&quot;@+id/textView9&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_below=&quot;@+id/ll2_10&quot;
                    android:layout_toRightOf=&quot;@+id/textView10&quot;
                    android:text=&quot;@string/quesiton2_11&quot; android:layout_marginBottom=&quot;10dp&quot;/&gt;
    
    
                &lt;LinearLayout
                    android:id=&quot;@+id/ll2_11&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_alignLeft=&quot;@+id/textView9&quot;
                    android:layout_below=&quot;@+id/textView9&quot;
                    android:orientation=&quot;vertical&quot; android:layout_marginBottom=&quot;20dp&quot;&gt;
    
                &lt;/LinearLayout&gt;
    
                &lt;TextView
                    android:id=&quot;@+id/textView12&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_alignLeft=&quot;@+id/textView8&quot;
                    android:layout_below=&quot;@+id/ll2_11&quot;
                    android:text=&quot;2.11.1&quot; /&gt;
    
                &lt;TextView
                    android:id=&quot;@+id/textView13&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_below=&quot;@+id/ll2_11&quot;
                    android:layout_toRightOf=&quot;@+id/textView10&quot;
                    android:text=&quot;@string/question2_11_1&quot; android:layout_marginBottom=&quot;10dp&quot;/&gt;
    
    
                &lt;LinearLayout
                    android:id=&quot;@+id/ll2_11_1&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_below=&quot;@+id/textView13&quot;
                    android:layout_toRightOf=&quot;@+id/textView10&quot;
                    android:orientation=&quot;vertical&quot; android:layout_marginBottom=&quot;20dp&quot;&gt;
    
                &lt;/LinearLayout&gt;
    
            &lt;/RelativeLayout&gt;
    
        &lt;/ScrollView&gt;
    
    &lt;/RelativeLayout&gt;

  [1]: http://i.stack.imgur.com/AQp6x.jpg

Android: Last line of textview cut off

My questions are:

 1. What is exactly the function of the LayoutInflater?
 2. Why do all the articles that I&#39;ve read check if convertview is null or not first? What does it mean when it is null and what does it mean when it isn&#39;t?
 3. What is the parent parameter that this method accepts?

How does the getView() method work when creating your own custom adapter?

I&#39;m trying to change the default color for the options menu which is white: I want a black background for every item on the options menu.

I&#39;ve tried some shoots like android:itemBackground=&quot;#000000&quot; on the item element within the menu element but it didn&#39;t work.

How can I accomplish this?

How to change the background color of the options menu?

What is the use of [`LayoutInflater`][1] in Android?

  [1]: http://developer.android.com/reference/android/view/LayoutInflater.html

What does LayoutInflater in Android do?

I keep getting a `java.lang.NullPointerException` when I try to use `ScrollView` in an activity. 

The weird thing is that I&#39;ve used the exact same `Scrollview` setup in other activities. And all of a sudden I&#39;m getting errors. I&#39;ve tried cleaning the project and rebuilding.

And I&#39;ve tried the good old restart the program. I learned a lot about Null Pointer Exceptions today, but I haven&#39;t been able to figure out why I keep getting **Rendering Problems**.

This is the `java.lang.NullPointerException` that is thrown on the XML:

    java.lang.NullPointerException
    	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:738)
    	at android.view.BridgeInflater.createViewFromTag(BridgeInflater.java:149)
    	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
    	at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:835)
    	at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:70)
    	at android.view.LayoutInflater.rInflate(LayoutInflater.java:811)
    	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798)
    	at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:838)
    	at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:70)
    	at android.view.LayoutInflater.rInflate(LayoutInflater.java:811)
    	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798)
    	at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:838)
    	at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:70)
    	at android.view.LayoutInflater.rInflate(LayoutInflater.java:811)
    	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798)
    	at android.view.LayoutInflater.inflate(LayoutInflater.java:515)
    	at android.view.LayoutInflater.inflate(LayoutInflater.java:394)
    	at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:223)
    	at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:426)
    	at com.android.ide.common.rendering.LayoutLibrary.createSession(LayoutLibrary.java:350)
    	at com.android.tools.idea.rendering.RenderTask$2.compute(RenderTask.java:510)
    	at com.android.tools.idea.rendering.RenderTask$2.compute(RenderTask.java:498)
    	at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:888)
    	at com.android.tools.idea.rendering.RenderTask.createRenderSession(RenderTask.java:498)
    	at com.android.tools.idea.rendering.RenderTask.access$600(RenderTask.java:72)
    	at com.android.tools.idea.rendering.RenderTask$3.call(RenderTask.java:610)
    	at com.android.tools.idea.rendering.RenderTask$3.call(RenderTask.java:607)
    	at com.android.tools.idea.rendering.RenderService.runRenderAction(RenderService.java:362)
    	at com.android.tools.idea.rendering.RenderTask.render(RenderTask.java:607)
    	at com.android.tools.idea.rendering.RenderTask.render(RenderTask.java:629)
    	at org.jetbrains.android.uipreview.AndroidLayoutPreviewToolWindowManager.doRender(AndroidLayoutPreviewToolWindowManager.java:652)
    	at org.jetbrains.android.uipreview.AndroidLayoutPreviewToolWindowManager.access$1700(AndroidLayoutPreviewToolWindowManager.java:80)
    	at org.jetbrains.android.uipreview.AndroidLayoutPreviewToolWindowManager$7$1.run(AndroidLayoutPreviewToolWindowManager.java:594)
    	at com.intellij.openapi.progress.impl.CoreProgressManager$2.run(CoreProgressManager.java:152)
    	at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:452)
    	at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:402)
    	at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:54)
    	at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:137)
    	at org.jetbrains.android.uipreview.AndroidLayoutPreviewToolWindowManager$7.run(AndroidLayoutPreviewToolWindowManager.java:589)
    	at com.intellij.util.ui.update.MergingUpdateQueue.execute(MergingUpdateQueue.java:320)
    	at com.intellij.util.ui.update.MergingUpdateQueue.execute(MergingUpdateQueue.java:310)
    	at com.intellij.util.ui.update.MergingUpdateQueue$2.run(MergingUpdateQueue.java:254)
    	at com.intellij.util.ui.update.MergingUpdateQueue.flush(MergingUpdateQueue.java:269)
    	at com.intellij.util.ui.update.MergingUpdateQueue.flush(MergingUpdateQueue.java:227)
    	at com.intellij.util.ui.update.MergingUpdateQueue.run(MergingUpdateQueue.java:217)
    	at com.intellij.util.concurrency.QueueProcessor.runSafely(QueueProcessor.java:238)
    	at com.intellij.util.Alarm$Request$1.run(Alarm.java:351)
    	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    	at java.lang.Thread.run(Thread.java:745)

So, none of this is code that I wrote. So I dove into the stack trace and found this:

      java.lang.NullPointerException: Attempt to invoke virtual method &#39;boolean java.lang.String.equals(java.lang.Object)&#39; on a null object reference
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2325)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
            at android.app.ActivityThread.access$800(ActivityThread.java:151)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5254)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
            Caused by: java.lang.NullPointerException: Attempt to invoke virtual method &#39;boolean java.lang.String.equals(java.lang.Object)&#39; on a null object reference
                  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:715)
                  at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
                  at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)
                  at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)
                  at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
                  at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
                  at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
                  at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:378)
                  at android.app.Activity.setContentView(Activity.java:2145)
                  at com.mitchellpalermo.tutroubleshooting.ContactPage.onCreate(ContactPage.java:11)
                  at android.app.Activity.performCreate(Activity.java:5990)
                  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
                  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
                  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)&#160;
                  at android.app.ActivityThread.access$800(ActivityThread.java:151)&#160;
                  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)&#160;
                  at android.os.Handler.dispatchMessage(Handler.java:102)&#160;
                  at android.os.Looper.loop(Looper.java:135)&#160;
                  at android.app.ActivityThread.main(ActivityThread.java:5254)&#160;
                  at java.lang.reflect.Method.invoke(Native Method)&#160;
                  at java.lang.reflect.Method.invoke(Method.java:372)&#160;
                  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)&#160;
                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)

Which points to ***line 11*** on the ***Contact.java*** file. Which looks like this (I&#39;ve put indicators around line 11) :

      package com.mitchellpalermo.tutroubleshooting;

      import android.app.Activity;
      import android.os.Bundle;

      public class Contact extends Activity {

            @Override
            protected void onCreate(Bundle savedInstanceState) {
                  super.onCreate(savedInstanceState);
                  setContentView(R.layout.activity_contact); // line 11
            }
      }

I don&#39;t see a problem with ***line 11***. 

Now, I can&#39;t figure out what is wrong with my code. Between **Rendering Problems** and `NullPointerExceptions`, I can&#39;t figure out what is actually wrong with my code. 

This is an example of **XML** in an activity in which the `ScrollView` doesn&#39;t throw any errors:

    &lt;ScrollView xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
        xmlns:tools=&quot;http://schemas.android.com/tools&quot;
        android:layout_width=&quot;match_parent&quot;
        android:layout_height=&quot;fill_parent&quot;
        android:orientation=&quot;vertical&quot;
        tools:context=&quot;com.mitchellpalermo.tutroubleshooting.ComputerOrProjector&quot;&gt;

        &lt;LinearLayout
            android:layout_width=&quot;match_parent&quot;
            android:layout_height=&quot;wrap_content&quot;
            android:layout_gravity=&quot;center&quot;
            android:orientation=&quot;vertical&quot;&gt;

            &lt;TextView
                style=&quot;@style/HeaderStyle&quot;
                android:layout_width=&quot;wrap_content&quot;
                android:layout_height=&quot;wrap_content&quot;
                android:layout_gravity=&quot;center&quot;
                android:text=&quot;@string/solutions&quot;
                android:textStyle=&quot;bold&quot; /&gt;

            &lt;!-- A CardView that contains a TextView --&gt;
            &lt;android.support.v7.widget.CardView xmlns:card_view=&quot;http://schemas.android.com/apk/res-auto&quot;
                android:layout_width=&quot;match_parent&quot;
                android:layout_height=&quot;wrap_content&quot;
                android:layout_gravity=&quot;center&quot;
                android:layout_margin=&quot;15dp&quot;
                card_view:cardBackgroundColor=&quot;#FFFFFF&quot;
                card_view:cardCornerRadius=&quot;4dp&quot;
                card_view:cardElevation=&quot;5dp&quot;&gt;

                &lt;LinearLayout
                    android:layout_width=&quot;match_parent&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:orientation=&quot;vertical&quot;&gt;

                    &lt;TextView
                        style=&quot;@style/Solution&quot;
                        android:text=&quot;@string/pc_v_fifth&quot; /&gt;

                    &lt;View
                        android:layout_width=&quot;match_parent&quot;
                        android:layout_height=&quot;2dp&quot;
                        android:background=&quot;@android:color/darker_gray&quot; /&gt;
                    
                    &lt;TextView
                        style=&quot;@style/Solution&quot;
                        android:text=&quot;@string/pc_v_first&quot; /&gt;

                    &lt;View
                        android:layout_width=&quot;match_parent&quot;
                        android:layout_height=&quot;2dp&quot;
                        android:background=&quot;@android:color/darker_gray&quot; /&gt;

                    &lt;TextView
                        style=&quot;@style/Solution&quot;
                        android:text=&quot;@string/pc_v_second&quot; /&gt;

                    &lt;View
                        android:layout_width=&quot;match_parent&quot;
                        android:layout_height=&quot;2dp&quot;
                        android:background=&quot;@android:color/darker_gray&quot; /&gt;

                    &lt;TextView
                        style=&quot;@style/Solution&quot;
                        android:text=&quot;@string/pc_v_third&quot; /&gt;

                    &lt;View
                        android:layout_width=&quot;match_parent&quot;
                        android:layout_height=&quot;2dp&quot;
                        android:background=&quot;@android:color/darker_gray&quot; /&gt;


                    &lt;TextView
                        style=&quot;@style/Solution&quot;
                        android:text=&quot;@string/pc_v_fourth&quot; /&gt;

                    &lt;View
                        android:layout_width=&quot;match_parent&quot;
                        android:layout_height=&quot;2dp&quot;
                        android:background=&quot;@android:color/darker_gray&quot; /&gt;

                &lt;/LinearLayout&gt;
            &lt;/android.support.v7.widget.CardView&gt;

            &lt;LinearLayout
                android:layout_width=&quot;match_parent&quot;
                android:layout_height=&quot;wrap_content&quot;
                android:orientation=&quot;horizontal&quot;&gt;

                &lt;Button
                    style=&quot;@style/NextButton&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_gravity=&quot;center&quot;
                    android:onClick=&quot;sendEmail&quot;
                    android:text=&quot;@string/fixed&quot;
                    android:textStyle=&quot;bold&quot; /&gt;

                &lt;Button
                    style=&quot;@style/NextButton&quot;
                    android:layout_width=&quot;wrap_content&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_gravity=&quot;center&quot;
                    android:onClick=&quot;notFixedButton&quot;
                    android:text=&quot;@string/not_fixed&quot;
                    android:textStyle=&quot;bold&quot; /&gt;

            &lt;/LinearLayout&gt;

        &lt;/LinearLayout&gt;

    &lt;/ScrollView&gt;

And here is the **activity** in which I receive errors:

    &lt;ScrollView xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
        android:layout_width=&quot;fill_parent&quot;
        android:layout_height=&quot;wrap_content&quot;
        android:fillViewport=&quot;false&quot;&gt;
    
    
        &lt;LinearLayout
            android:layout_width=&quot;match_parent&quot;
            android:layout_height=&quot;wrap_content&quot;
            android:orientation=&quot;vertical&quot;&gt;
    
            &lt;TextView
                style=&quot;@style/HeaderStyle&quot;
                android:layout_width=&quot;wrap_content&quot;
                android:layout_height=&quot;wrap_content&quot;
                android:layout_gravity=&quot;center&quot;
                android:text=&quot;@string/still_not_fixed&quot; /&gt;
    
            &lt;!-- A CardView that contains a TextView --&gt;
            &lt;android.support.v7.widget.CardView xmlns:card_view=&quot;http://schemas.android.com/apk/res-auto&quot;
                android:layout_width=&quot;match_parent&quot;
                android:layout_height=&quot;wrap_content&quot;
                android:layout_gravity=&quot;center&quot;
                android:layout_margin=&quot;15dp&quot;
                card_view:cardBackgroundColor=&quot;#FFFFFF&quot;
                card_view:cardCornerRadius=&quot;4dp&quot;
                card_view:cardElevation=&quot;5dp&quot;&gt;
    
                &lt;TextView
                    android:layout_width=&quot;match_parent&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:text=&quot;@string/hector&quot; /&gt;
    
                &lt;view
                    android:layout_width=&quot;match_parent&quot;
                    android:layout_height=&quot;2dp&quot;
                    android:backgroundTint=&quot;@android:color/darker_gray&quot; /&gt;
    
                &lt;TextView
                    android:layout_width=&quot;match_parent&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:text=&quot;@string/robert&quot; /&gt;
    
                &lt;view
                    android:layout_width=&quot;match_parent&quot;
                    android:layout_height=&quot;2dp&quot;
                    android:backgroundTint=&quot;@android:color/darker_gray&quot; /&gt;
    
                &lt;TextView
                    android:layout_width=&quot;match_parent&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:text=&quot;@string/mitch&quot; /&gt;
    
            &lt;/android.support.v7.widget.CardView&gt;
    
        &lt;/LinearLayout&gt;
    
    &lt;/ScrollView&gt;

Any suggestions? And thank you so much in advance!

All Layout Inflater Solutions on Gang of Coders

Total of 14 Layout Inflater Solutions