Steps I follow:

`android:pathData` replaced with `d`

`android:fillColor` replaced with `fill`

`android:strokeColor` replaced with `stroke`

`android:strokeWidth` replaced with `stroke-width`

`android:fillType` replaced with `fill-rule`


A path in the VectorDrawable without `fillColor` is `fill=&quot;none&quot;` in SVG.

`android:viewportHeight=&quot;24&quot; android:viewportWidth=&quot;24&quot;` is `viewBox=&quot;0 0 24 24&quot;` in SVG.

**Example**

Vector Drawable

    &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
    &lt;vector xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
        android:width=&quot;24dp&quot;
        android:height=&quot;24dp&quot;
        android:viewportHeight=&quot;24&quot;
        android:viewportWidth=&quot;24&quot;&gt;

        &lt;path
            android:fillColor=&quot;#ffffff&quot;
            android:pathData=&quot;M12,3L2,12h3v8h2.5v-0.8c0-1.5,3-2.2,4.5-2.2s4.5,0.8,4.5,2.2V20H19v-8h3L12,3zM12,15.2c1.2,0-2.2-1-2.2-2.2 s1-2.2,2.2-2.2s2.2,1,2.2,2.2S13.2,15.2,12,15.2z&quot; /&gt;
        &lt;path android:pathData=&quot;M0,0h24v24H0V0z&quot; /&gt;
    &lt;/vector&gt;

SVG

    &lt;svg xmlns=&quot;http://www.w3.org/2000/svg&quot;
        width=&quot;24&quot; 
        height=&quot;24&quot; 
        viewBox=&quot;0 0 24 24&quot; &gt;

	    &lt;path 
            fill=&quot;#ffffff&quot;
            d=&quot;M12,3L2,12h3v8h2.5v-0.8c0-1.5,3-2.2,4.5-2.2s4.5,0.8,4.5,2.2V20H19v8h3L12,3zM12,15.2c1.2,0-2.2-1-2.2-2.2 s1-2.2,2.2-2.2s2.2,1,2.2,2.2S13.2,15.2,12,15.2z&quot; /&gt;
	    &lt;path d=&quot;M0,0h24v24H0V0z&quot; fill=&quot;none&quot;/&gt;
    &lt;/svg&gt;


The **VectorDrawable** format is pretty similar to **SVG**.

You can find the documentation of the **VectorDrawable** format [here][1], and the documentation of the **SVG** format [here][2].

I just written [this Python script][3] which converts a vector drawable xml, to a svg.
It doesn&#39;t cover all the vector drawable proprieties, but it works with the most common ones.
You have only to drop your xml files onto the script, and the files will be converted.


  [1]: https://developer.android.com/reference/android/graphics/drawable/VectorDrawable.html
  [2]: https://www.w3.org/TR/SVG/
  [3]: https://gitlab.com/Hyperion777/VectorDrawable2Svg

What is the  difference between **Git GUI**, **Git Bash** and **Git CMD**?
I&#39;m a beginner, and for doing my installations I usually find myself using both git bash and git CMD

Difference between Git GUI, Git Bash, Git CMD

I am trying to test my route resolver and while testing I got `TypeError: ctor is not a constructor` and no idea why it happen while typescript compile time no error.

    TypeError: ctor is not a constructor
    TypeError: ctor is not a constructor
        at _createClass (http://localhost:9877/_karma_webpack_/vendor.bundle.js:42355:26)
        at _createProviderInstance$1 (http://localhost:9877/_karma_webpack_/vendor.bundle.js:42330:26)
        at resolveNgModuleDep (http://localhost:9877/_karma_webpack_/vendor.bundle.js:42315:17)
        at _createClass (http://localhost:9877/_karma_webpack_/vendor.bundle.js:42362:26)
        at _createProviderInstance$1 (http://localhost:9877/_karma_webpack_/vendor.bundle.js:42330:26)
        at resolveNgModuleDep (http://localhost:9877/_karma_webpack_/vendor.bundle.js:42315:17)
        at NgModuleRef_.webpackJsonp../node_modules/@angular/core/@angular/core.es5.js.NgModuleRef_.get (http://localhost:9877/_karma_webpack_/vendor.bundle.js:43401:16)
        at TestBed.webpackJsonp../node_modules/@angular/core/@angular/core/testing.es5.js.TestBed.get (http://localhost:9877/_karma_webpack_/vendor.bundle.js:48412:47)
        at http://localhost:9877/_karma_webpack_/vendor.bundle.js:48418:61
        at Array.map (native)

angular 4 unit testing error `TypeError: ctor is not a constructor`

I have made the opposite conversions (SVG to `VectorDrawable`) manually or using web tools. 

But I am having hard time to do the opposite thing. I have `VectorDrawable` but I am not sure how to convert it to SVG and I can find zero online tools to do it. 

Does anyone have experience with this and what are the steps or tools to do it?

Convert VectorDrawable to SVG

I have made the opposite conversions (SVG to <code>VectorDrawable</code>) manually or using web tools.
But I am having hard time to do the opposite thing. I have <code>VectorDrawable</code> but I am not sure how to convert it to SVG and I can find zero online tools to do it.
Does anyone have experience with this and what are the steps or tools to do it?

I am getting the following error when I try to find a `RecycleView` by id.

&gt;**Error:-** 
&gt;Type inference failed: Not enough information to infer parameter **T**

[![Error][1]][1]

Code:

    class FirstRecycleViewExample : AppCompatActivity() {
        val data = arrayListOf&lt;String&gt;()
        override fun onCreate(savedInstanceState: Bundle?) {
            super.onCreate(savedInstanceState)
            setContentView(R.layout.first_recycleview)
    
            val recycler_view =  findViewById(R.id.recycler_view) as RecyclerView ///IN THIS LINE I AM GETTING THE ERROR
    
            data.add(&quot;First Data&quot;)
            data.add(&quot;Second Data&quot;)
            data.add(&quot;Third Data&quot;)
            data.add(&quot;Forth Data&quot;)
            data.add(&quot;Fifth Data&quot;)
    
            //creating our adapter
            val adapter = CustomRecycleAdapter(data)
    
            //now adding the adapter to recyclerview
            recycler_view.adapter = adapter
        }
    }

  [1]: https://i.stack.imgur.com/cQLGp.png

Not able to &quot;findViewById&quot; in Kotlin. Getting error &quot;Type inference failed&quot;

I am trying to port some iOS functionality to Android.

I intent to create a table where on swipe to the left shows 2 button: Edit and Delete.


[![enter image description here][1]][1]


I have been playing with it and I know I am very close. The secret really lies on the method OnChildDraw. 

I would like to Draw a Rect that fits the text Delete then draw the Edit text besides it with their respective background color. The remaining white space when clicked should restore the row to its initial position.

I have managed to paint the background while the user is swiping to the sides but I don&#39;t know how to add the listeners and once it is swiped to the side, the dragging function begins to misbehave.

I am working on Xamarin but pure java solutions also are accepted as I can easily port them to c#.

        public class SavedPlacesItemTouchHelper : ItemTouchHelper.SimpleCallback
        {
            private SavedPlacesRecyclerviewAdapter adapter;
            private Paint paint = new Paint();
            private Context context;
    
            public SavedPlacesItemTouchHelper(Context context, SavedPlacesRecyclerviewAdapter adapter) : base(ItemTouchHelper.ActionStateIdle, ItemTouchHelper.Left)
            {
                this.context = context;
                this.adapter = adapter;
            }
    
            public override bool OnMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target)
            {
                return false;
            }
    
            public override void OnSwiped(RecyclerView.ViewHolder viewHolder, int direction)
            {
            }
    
            public override void OnChildDraw(Canvas c, RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, float dX, float dY, int actionState, bool isCurrentlyActive)
            {
                float translationX = dX;
                View itemView = viewHolder.ItemView;
                float height = (float)itemView.Bottom - (float)itemView.Top;
    
                if (actionState == ItemTouchHelper.ActionStateSwipe &amp;&amp; dX &lt;= 0) // Swiping Left
                {
                     translationX = -Math.Min(-dX, height * 2);
                    paint.Color = Color.Red;
                    RectF background = new RectF((float)itemView.Right + translationX, (float)itemView.Top, (float)itemView.Right, (float)itemView.Bottom);
                    c.DrawRect(background, paint);
    
                    //viewHolder.ItemView.TranslationX = translationX;
                }
                else if (actionState == ItemTouchHelper.ActionStateSwipe &amp;&amp; dX &gt; 0) // Swiping Right
                {
                    translationX = Math.Min(dX, height * 2);
                    paint.Color = Color.Red;
                    RectF background = new RectF((float)itemView.Right + translationX, (float)itemView.Top, (float)itemView.Right, (float)itemView.Bottom);
                    c.DrawRect(background, paint);
                }
    
                base.OnChildDraw(c, recyclerView, viewHolder, translationX, dY, actionState, isCurrentlyActive);
            }
        }
    }

This is what I currently have.

If you know how to add listeners or any suggestions please leave a comment!

UPDATE:

I just realized that on double tap on the white remaining space of the row already restore the row to its initial state. Not a single tap though :(


  [1]: https://i.stack.imgur.com/iTyBj.png

RecyclerView ItemTouchHelper Buttons on Swipe

I am just learning Rx-java and Rxandroid2 and I am just confused what is the major difference between in SubscribeOn and ObserveOn.

Rxandroid What&#39;s the difference between SubscribeOn and ObserveOn

I just implemented Room for offline data saving. But in an Entity class, I am getting the following error:

    Error:(27, 30) error: Cannot figure out how to save this field into database. You can consider adding a type converter for it.

And the class is as following:
    
    @Entity(tableName = &quot;firstPageData&quot;)
    public class MainActivityData {

        @PrimaryKey
        private String userId;

        @ColumnInfo(name = &quot;item1_id&quot;)
        private String itemOneId;

        @ColumnInfo(name = &quot;item2_id&quot;)
        private String itemTwoId;

        // THIS IS CAUSING THE ERROR... BASICALLY IT ISN&#39;T READING ARRAYS
        @ColumnInfo(name = &quot;mylist_array&quot;)
        private ArrayList&lt;MyListItems&gt; myListItems;

        public String getUserId() {
            return userId;
        }

        public void setUserId(String userId) {
            this.userId = userId;
        }

        public ArrayList&lt;MyListItems&gt; getMyListItems() {
            return myListItems;
        }

        public void setCheckListItems(ArrayList&lt;MyListItems&gt; myListItems) {
            this.myListItems = myListItems;
        }

    }

So basically I want to save the ArrayList in the database but I was not able to find anything relevant to it. Can you guide me regarding how to save an Array using Room?

NOTE: MyListItems Pojo class contains 2 Strings (as of now)

Thanks in advance. 

Android Room Database: How to handle Arraylist in an Entity?

I am trying to write a sample app using Android architecture components and but even after trying for days I could not get it to work. It gives me the above exception.

Lifecycle owner:-

    public class MainActivity extends LifecycleActivity {
    
        public void onCreate(Bundle savedInstanceState)
        {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            TextView textView = findViewById(R.id.tv_user);
            PostViewModel viewModel = ViewModelProviders.of(this).get(PostViewModel.class);
            viewModel.loadPosts();
            viewModel.getPost().observe(this, new Observer&lt;Post&gt;() {
                @Override
                public void onChanged(@Nullable Post post) {
                    if(post != null) {
                        textView.setText(post.toString());
                    }
                }
            });
        }
    }

ViewModel:-

    public class PostViewModel extends ViewModel {
        private MediatorLiveData&lt;Post&gt; post;
        private PostRepository postRepo;
    
        PostViewModel() {
            post = new MediatorLiveData&lt;&gt;();
            postRepo = new PostRepository();
        }
    
        public LiveData&lt;Post&gt; loadPosts() {
            post.addSource(postRepo.getPost(),
                    post -&gt; this.post.setValue(post)
            );
            return post;
        }
    
        @NonNull
        public LiveData&lt;Post&gt; getPost() {
            return post;
        }
    }



Cannot create an instance of class ViewModel

What favicon dimensions, file formats and meta/link tags should be used as of 2022? This includes apple icon, windows, android and other devices people use today.

I use Opera and I can see it supports svg format. Is it the best solution to use svg nowadays? Is there any option &quot;one file fits all&quot;?

I&#39;ve been browsing many websites and checked different &quot;favicon generators&quot;. All of them are years old and work mostly with png files.

**For example:**
What code should be used for ico and svg? 

    &lt;link rel=&quot;icon&quot; href=&quot;favicon.ico&quot; type=&quot;image/ico&quot;&gt;
    &lt;link rel=&quot;icon&quot; href=&quot;favicon.svg&quot; type=&quot;image/svg+xml&quot;&gt;



or should dimensions be specified if ico contains more sizes? I didn&#39;t find one good answer.

    &lt;link rel=&quot;icon&quot; sizes=&quot;16x16 24x24 32x32 48x48 64x64&quot; href=&quot;favicon.ico&quot;&gt;


Please provide dimensions, file formats and meta/link tags of what favicons should be used.



Favicon Standard - 2022 - svg, ico, png and dimensions?

    In icon.svg
    ERROR@ line 9 &lt;text&gt; is not supported
    ERROR@ line 10 &lt;tspan&gt; is not supported

How to export this type of `svg` to vector drawable? Is this even possible? Or should I look for a new `svg`? 

Android Vector Drawable &lt;text&gt; not support, &lt;tspan&gt; not support

I get the following error when trying to download svg as a React Component.

&gt;SyntaxError: unknown: Namespace tags are not supported by default. React&#39;s JSX doesn&#39;t support namespace tags. You can turn on the &#39;throwIfNamespace&#39; flag to bypass this warning.

    import React from &quot;react&quot;;
    import { ReactComponent as LO } from &quot;../a/Logo.svg&quot;
    import { NavLink } from &quot;react-router-dom&quot;;
    
    const Logo = () =&gt; (
      &lt;&gt;
        &lt;NavLink to={&quot;/&quot;}&gt;
         &lt;LO width={&quot;40px&quot;} height={&quot;40px&quot;} /&gt;
        &lt;/NavLink&gt;
      &lt;/&gt;
    );
    
    export default Logo;


What is the reason ? 

Content Type	Original Author	Original Content on Stackoverflow
Question	sandalone	View Question on Stackoverflow
Solution 1 - Android	Kuti Gbolahan	View Answer on Stackoverflow
Solution 2 - Android	Hyperion	View Answer on Stackoverflow

Convert VectorDrawable to SVG

Android Problem Overview

Android Solutions

Solution 1 - Android

Solution 2 - Android

angular 4 unit testing error `TypeError: ctor is not a constructor`

Difference between Git GUI, Git Bash, Git CMD

Attributions