Use the re-format code shortcut (default: `⌘ + Opt + L` (Mac) / `Ctrl + Alt + L` (PC)) in the Project Files View/Explorer on the desired root folder(s) and then check `Include subdirectories`.

[![Project File View][1]][1]

[![Reformat Code Options][2]][2]


  [1]: https://i.stack.imgur.com/KbCRV.png
  [2]: https://i.stack.imgur.com/puyX0.png

**This is how it works in Android Studio 3.5**

**Right click in your project or lib -&gt; Reformat Code**

See the image below:

[![][1]][1]

**Select what you want** (clean up code will reformat your code)
[![enter image description here][2]][2]


  [1]: https://i.stack.imgur.com/CBDzb.png
  [2]: https://i.stack.imgur.com/ot4O1.png

Wait until the progress finish.

**that&#39;s it!**

**Good coding!**

I am completely new to Android development and just installed Android Studio. I&#39;m doing a very basic HelloGL2 exercise, and I opened up the HelloGL2.iml file. I tried running it, but it said that the gradle project sync failed and that the NDK is not configured. In the simplest terms (to a complete beginner in Android), how do I fix this?

Gradle sync failed, NDK not configured, download it with SDK manager

While creating a table in Athena; it gives me following exception:

&gt; no viable alternative at input



Amazon Athena: no viable alternative at input

I need to update my code style. Reformatting the whole project files one by one takes too much effort with the [shortcuts][1] I know.
&gt; &lt;kbd&gt;Opt&lt;/kbd&gt; + &lt;kbd&gt;Command&lt;/kbd&gt; + &lt;kbd&gt;L&lt;/kbd&gt;

**My Question?**
================

Is there any other way to do it for the whole project?


  [1]: https://stackoverflow.com/a/16580200/4376058

Reformat Whole Project Files in Android Studio

<p>I need to update my code style. Reformatting the whole project files one by one takes too much effort with the <a href="https://stackoverflow.com/a/16580200/4376058" target="_blank" rel="noopener noreferrer">shortcuts</a> I know.
> <kbd>Opt</kbd> + <kbd>Command</kbd> + <kbd>L</kbd></p>
<h3 id="my-question"><a aria-hidden="true" tabindex="-1" href="#my-question"><span class="icon icon-link"></span></a><strong>My Question?</strong></h3>
<p>Is there any other way to do it for the whole project?</p>


What to implement: `ConstraintLayout` or `CoordinatorLayout` for proper material design in android ?

ConstraintLayout vs Coordinator layout?

I would like to know what the `clipToPadding` attribute does for `ViewGroup` in Android ?

I&#39;ve been through the docs and some websites but none I have come across actually explain what it does and what it means, well none that I could actually understand so I thought it might be a good idea to ask it here.

Android what does the clipToPadding Attribute do?

I want to get string json from my api using retrofit 2, I have no problem when using retrofit 1 to get this json but using retrofit 2 returns **null** for me.

This is what my json looks like

    {&quot;id&quot;:1,&quot;Username&quot;:&quot;admin&quot;,&quot;Level&quot;:&quot;Administrator&quot;}

This is my API

    @FormUrlEncoded
    @POST(&quot;/api/level&quot;)
    Call&lt;ResponseBody&gt; checkLevel(@Field(&quot;id&quot;) int id);

This is how my code looks like

    Retrofit retrofit = new Retrofit.Builder()
                    .baseUrl(Config.BASE_URL)
                    .addConverterFactory(GsonConverterFactory.create())
                    .build();
            Api api = retrofit.create(Api.class);
            Call&lt;ResponseBody&gt; call = api.checkLevel(1);
            call.enqueue(new Callback&lt;ResponseBody&gt;() {
                @Override
                public void onResponse(Call&lt;ResponseBody&gt; call, Response&lt;ResponseBody&gt; response) {
                    JsonObject post = new JsonObject().get(response.body().toString()).getAsJsonObject();
                        if (post.get(&quot;Level&quot;).getAsString().contains(&quot;Administrator&quot;)) {
    
                        }
                }
    
                @Override
                public void onFailure(Call&lt;ResponseBody&gt; call, Throwable t) {
                }
            });

I&#39;m new to retrofit 2 and using above code, it always make my apps crash because `response.body().toString()` returns null.

Please guide me on how to get that json string so I can convert it into JsonObject.

Retrofit 2: Get JSON from Response body

I added some icons on 4 buttons and they look so big next to the button. So how can I resize them? I used drawableLeft on the buttons to add icons.

The drawables are called deal, trophy, puzzle and megaphone. The icons are too big.
The content_main.xml file:

    &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;
        xmlns:app=&quot;http://schemas.android.com/apk/res-auto&quot;
        xmlns:tools=&quot;http://schemas.android.com/tools&quot;
        android:id=&quot;@+id/content_main&quot;
        android:layout_width=&quot;match_parent&quot;
        android:layout_height=&quot;match_parent&quot;
        android:paddingBottom=&quot;@dimen/activity_vertical_margin&quot;
        android:paddingLeft=&quot;@dimen/activity_horizontal_margin&quot;
        android:paddingRight=&quot;@dimen/activity_horizontal_margin&quot;
        android:paddingTop=&quot;@dimen/activity_vertical_margin&quot;
        app:layout_behavior=&quot;@string/appbar_scrolling_view_behavior&quot;
        tools:context=&quot;tr.k12.evrim.evrimnews.MainActivity&quot;
        tools:showIn=&quot;@layout/activity_main&quot;&gt;
    
    
    
    
        &lt;FrameLayout
            android:layout_width=&quot;match_parent&quot;
            android:layout_height=&quot;wrap_content&quot;
            android:id=&quot;@+id/frameLayout&quot;
            android:layout_alignParentTop=&quot;true&quot;
            android:layout_alignParentStart=&quot;true&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;Button
                    android:layout_width=&quot;match_parent&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:text=&quot;Giriş Yap&quot;
                    android:onClick=&quot;SignIn&quot;
                    android:textStyle=&quot;bold&quot;
                    style=&quot;@style/Widget.AppCompat.Button.Colored&quot;/&gt;
    
    
    
    
                &lt;/LinearLayout&gt;
    
    
        &lt;/FrameLayout&gt;
    
        &lt;LinearLayout
            android:layout_width=&quot;match_parent&quot;
            android:layout_height=&quot;400dp&quot;
            android:layout_below=&quot;@id/frameLayout&quot;
            android:orientation=&quot;vertical&quot;&gt;
    
    
    
        &lt;Button
            android:text=&quot;Duyurular&quot;
            android:layout_width=&quot;match_parent&quot;
            android:layout_height=&quot;match_parent&quot;
            android:layout_weight=&quot;1&quot;
            android:layout_below=&quot;@+id/frameLayout&quot;
            android:layout_centerHorizontal=&quot;true&quot;
            android:layout_marginTop=&quot;13dp&quot;
            android:id=&quot;@+id/button2&quot;
            android:drawableLeft=&quot;@drawable/megaphone&quot; /&gt;
    
        &lt;Button
            android:text=&quot;Kadromuz&quot;
            android:layout_width=&quot;match_parent&quot;
            android:layout_height=&quot;match_parent&quot;
            android:layout_weight=&quot;1&quot;
            android:layout_below=&quot;@+id/button2&quot;
            android:layout_alignEnd=&quot;@+id/button2&quot;
            android:layout_marginTop=&quot;13dp&quot;
            android:id=&quot;@+id/button3&quot;
            android:drawableLeft=&quot;@drawable/puzzle&quot;/&gt;
    
            &lt;Button
                android:text=&quot;Başarılarımız&quot;
                android:layout_width=&quot;match_parent&quot;
                android:layout_height=&quot;match_parent&quot;
                android:layout_weight=&quot;1&quot;
                android:layout_marginTop=&quot;12dp&quot;
                android:id=&quot;@+id/button5&quot;
                android:drawableLeft=&quot;@drawable/trophy&quot;/&gt;
    
    
        &lt;Button
            android:text=&quot;Ortaklarımız&quot;
            android:layout_width=&quot;match_parent&quot;
            android:layout_height=&quot;match_parent&quot;
            android:layout_weight=&quot;1&quot;
            android:layout_marginTop=&quot;12dp&quot;
            android:id=&quot;@+id/button4&quot;
            android:drawableLeft=&quot;@drawable/deal&quot;/&gt;
    
    
    
    
        &lt;/LinearLayout&gt;
    
    &lt;/RelativeLayout&gt;

how to change a drawableLeft icon size on a button?

Everyone!

I got so confused by android studio.
when I plug in my phone to debug apps, logcat can detect my phone, but I can not choose process. It said &quot;no debuggable processes&quot;,not common &quot;no debuggable applications&quot;.

My phone is samsung s5 (android 6.0),rooted.

Any ideas?

Thanks!

No debuggable processes in logcat when phone detected by Android studio

I have this project in Android Studio :

[![enter image description here][1]][1]

I wish to run all unit tests in all project with one click.

How i can do it ?

  [1]: https://i.stack.imgur.com/L5llk.png

Run all unit tests in Android Studio

Anyone know how to edit /etc/hosts file inside an android studio emulator running in nougat? I will be editing it so I can use my virtual host in my local web server. I tried  editing it through terminal using adb however, it is returning Read-only file system. Tried also using chmod but still it fails.

Update:
I also tried pulling and pushing files using adb
$ ./adb -s emulator-5554 push ~/Desktop/hosts /system/etc/hosts

adb: error: failed to copy &#39;/Users/Christian/Desktop/hosts&#39; to &#39;/system/etc/hosts&#39;: couldn&#39;t create file: Read-only file system


How to edit /etc/hosts file in Android Studio emulator running in nougat?

I often need to use a text editor while writing code to paste random notes but especially JSON responses, where I format them using a plugin (for Sublime). 

I recently heard about the &#39;scratch file&#39; feature in IntelliJ / Android Studio which does exactly what I need it to - except I can&#39;t make it format JSON I paste in nicely.

How can I make Android Studio format JSON in a scratch buffer file?

How to format pasted JSON in IntelliJ / Android Studio

I need to add C/C++ code in my Android program for which I needed LLDB, CMake, and NDK. I found LLDB and NDK in SDK manager, but CMake is missing from there. I tried manually downloading it from the CMake official site and found out that for Android we need SDK customized CMake.

[![Enter image description here][1]][1]

As you can see there is no option such as CMake.

Where do I find a version of CMake for Android?

I have tried CMake from the website and one I found in ndk-bundle/build folder, but both are giving the same error as below. What can be made out of it and how can the issue be solved?

    Build command failed.

    Error while executing &#39;C:\Users\amishr33\AppData\Local\Android\sdk\cmake\bin\cmake.exe&#39; with arguments {-HC:\Users\amishr33\AndroidStudioProjects\MyApplication\app\src\main\jni -BC:\Users\amishr33\AndroidStudioProjects\MyApplication\app\.externalNativeBuild\cmake\debug\armeabi -GAndroid Gradle - Ninja -DANDROID_ABI=armeabi -DANDROID_NDK=C:\Users\amishr33\AppData\Local\Android\sdk\ndk-bundle -DCMAKE_LIBRARY_OUTPUT_DIRECTORY=C:\Users\amishr33\AndroidStudioProjects\MyApplication\app\build\intermediates\cmake\debug\obj\armeabi -DCMAKE_BUILD_TYPE=Debug -DCMAKE_MAKE_PROGRAM=C:\Users\amishr33\AppData\Local\Android\sdk\cmake\bin\ninja.exe -DCMAKE_TOOLCHAIN_FILE=C:\Users\amishr33\AppData\Local\Android\sdk\ndk-bundle\build\cmake\android.toolchain.cmake -DANDROID_NATIVE_API_LEVEL=15 -DCMAKE_CXX_FLAGS=-std=c++11 -DANDROID_TOOLCHAIN=clang -DANDROID_STL=gnustl_static}
    CMake Error: Could not create named generator Android Gradle - Ninja
    Generators
      Visual Studio 15 2017 [arch] = Generates Visual Studio 2017 project files.
                                     Optional [arch] can be &quot;Win64&quot; or &quot;ARM&quot;.
      Visual Studio 14 2015 [arch] = Generates Visual Studio 2015 project files.
                                     Optional [arch] can be &quot;Win64&quot; or &quot;ARM&quot;.
      Visual Studio 12 2013 [arch] = Generates Visual Studio 2013 project files.
                                     Optional [arch] can be &quot;Win64&quot; or &quot;ARM&quot;.
      Visual Studio 11 2012 [arch] = Generates Visual Studio 2012 project files.
                                     Optional [arch] can be &quot;Win64&quot; or &quot;ARM&quot;.
      Visual Studio 10 2010 [arch] = Generates Visual Studio 2010 project files.
                                     Optional [arch] can be &quot;Win64&quot; or &quot;IA64&quot;.
      Visual Studio 9 2008 [arch]  = Generates Visual Studio 2008 project files.
                                     Optional [arch] can be &quot;Win64&quot; or &quot;IA64&quot;.
      Visual Studio 8 2005 [arch]  = Generates Visual Studio 2005 project files.
                                     Optional [arch] can be &quot;Win64&quot;.
      Visual Studio 7 .NET 2003    = Deprecated.  Generates Visual Studio .NET
                                     2003 project files.
      Borland Makefiles            = Generates Borland makefiles.
      NMake Makefiles              = Generates NMake makefiles.
      NMake Makefiles JOM          = Generates JOM makefiles.
      Green Hills MULTI            = Generates Green Hills MULTI files
                                     (experimental, work-in-progress).
      MSYS Makefiles               = Generates MSYS makefiles.
      MinGW Makefiles              = Generates a make file for use with
                                     mingw32-make.
      Unix Makefiles               = Generates standard UNIX makefiles.
      Ninja                        = Generates build.ninja files.
      Watcom WMake                 = Generates Watcom WMake makefiles.
      CodeBlocks - MinGW Makefiles = Generates CodeBlocks project files.
      CodeBlocks - NMake Makefiles = Generates CodeBlocks project files.
      CodeBlocks - Ninja           = Generates CodeBlocks project files.
      CodeBlocks - Unix Makefiles  = Generates CodeBlocks project files.
      CodeLite - MinGW Makefiles   = Generates CodeLite project files.
      CodeLite - NMake Makefiles   = Generates CodeLite project files.
      CodeLite - Ninja             = Generates CodeLite project files.
      CodeLite - Unix Makefiles    = Generates CodeLite project files.
      Sublime Text 2 - MinGW Makefiles
                                   = Generates Sublime Text 2 project files.
      Sublime Text 2 - NMake Makefiles
                                   = Generates Sublime Text 2 project files.
      Sublime Text 2 - Ninja       = Generates Sublime Text 2 project files.
      Sublime Text 2 - Unix Makefiles
                                   = Generates Sublime Text 2 project files.
      Kate - MinGW Makefiles       = Generates Kate project files.
      Kate - NMake Makefiles       = Generates Kate project files.
      Kate - Ninja                 = Generates Kate project files.
      Kate - Unix Makefiles        = Generates Kate project files.
      Eclipse CDT4 - NMake Makefiles
                                   = Generates Eclipse CDT 4.0 project files.
      Eclipse CDT4 - MinGW Makefiles
                                   = Generates Eclipse CDT 4.0 project files.
      Eclipse CDT4 - Ninja         = Generates Eclipse CDT 4.0 project files.
      Eclipse CDT4 - Unix Makefiles= Generates Eclipse CDT 4.0 project files.
    Error:executing external native build for cmake C:\Users\amishr33\AndroidStudioProjects\MyApplication\app\src\main\jni\CMakeLists.txt

  [1]: https://i.stack.imgur.com/1LqqS.png



Unable to find CMake in Android Studio

I&#39;m new to Swift programming and I&#39;ve been creating a simple tip calculator app in Xcode 8.2, I have my calculations set up within my `IBAction` below. But when I actually run my app and input an amount to calculate (such as 23.45), it comes up with more than 2 decimal places. How do I format it to `.currency` in this case?




    @IBAction func calculateButtonTapped(_ sender: Any) {
        
        var tipPercentage: Double {
            
            if tipAmountSegmentedControl.selectedSegmentIndex == 0 {
                return 0.05
            } else if tipAmountSegmentedControl.selectedSegmentIndex == 1 {
                return 0.10
            } else {
                return 0.2
            }
        }
        
        let billAmount: Double? = Double(userInputTextField.text!)
        
        if let billAmount = billAmount {
            let tipAmount = billAmount * tipPercentage
            let totalBillAmount = billAmount + tipAmount
            
            tipAmountLabel.text = &quot;Tip Amount: $\(tipAmount)&quot;
            totalBillAmountLabel.text = &quot;Total Bill Amount: $\(totalBillAmount)&quot;
        }
    }



How to format a Double into Currency - Swift 3

Is there a way to format all files in a project without formatting each one individually?

How do I format all files in a Visual Studio Code project?

I&#39;m struggling to add empty spaces before the string starts to make [my GitHub `README.md`][1] looks something like this:

[![enter image description here][2]][2]

Right now it looks like this:

[![enter image description here][3]][3]

I tried adding `&lt;br /&gt;` tag to fix the new string start, now it works, but I don&#39;t understand how to add spaces before the string starts without changing everything to `&amp;nbsp;`. Maybe there&#39;s a more elegant way to format it?


  [1]: http://github.com/noduslabs/8os/
  [2]: https://i.stack.imgur.com/S5eT4.png
  [3]: https://i.stack.imgur.com/PhzaX.png

How to add empty spaces into MD markdown readme on GitHub?

I am trying to set up some tools to help maintain consistency in a codebase used by multiple developers. Is it necessary to use EditorConfig, ESlint and Prettier all together? As far as I understand, EditorConfig is used to set coding styles/rules, ESlint is used to ensure code is formatted consistently by throwing warnings if code does not follow rules, and prettier is used to automatically format code based on the rules. However, I believe you can customize rules in prettier, which in turns does the job of EditorConfig. Is this true? What is the best combination of tools to use to maintain consistent code?

EditorConfig vs. Eslint vs. Prettier: Is it worthwhile to use them all?

[f-Strings][1] are available from Python 3.6 and are very useful for formatting strings:

    &gt;&gt;&gt; n=&#39;you&#39;
    &gt;&gt;&gt; f&#39;hello {n}, how are you?&#39;
    &#39;hello you, how are you?&#39;

Reading more about them in [Python 3&#39;s f-Strings: An Improved String Formatting Syntax (Guide)][2]. I found an interesting pattern:

&gt; Note that using triple braces will result in there being only single braces in your string:

&gt;     &gt;&gt;&gt; f&quot;{{{74}}}&quot;
    &#39;{74}&#39;

&gt; However, you can get more braces to show if you use more than triple braces:

&gt;     &gt;&gt;&gt; f&quot;{{{{74}}}}&quot;
    &#39;{{74}}&#39;

And this is exactly the case:

    &gt;&gt;&gt; f&#39;{74}&#39;
    &#39;74&#39;

    &gt;&gt;&gt; f&#39;{{74}}&#39;
    &#39;{74}&#39;

Now if we pass from two `{` to three, the result is the same:

    &gt;&gt;&gt; f&#39;{{{74}}}&#39;
    &#39;{74}&#39;           # same as f&#39;{{74}}&#39; !

So we need up to 4! (`{{{{`) to get two braces as an output:

    &gt;&gt;&gt; f&#39;{{{{74}}}}&#39;
    &#39;{{74}}&#39;

Why is this? What happens with two braces to have Python require an extra one from that moment on?

  [1]: https://www.python.org/dev/peps/pep-0498/
  [2]: https://realpython.com/python-f-strings/





Content Type	Original Author	Original Content on Stackoverflow
Question	Eren Utku	View Question on Stackoverflow
Solution 1 - Android	meistermeier	View Answer on Stackoverflow
Solution 2 - Android	Faustino Gagneten	View Answer on Stackoverflow

Reformat Whole Project Files in Android Studio

Android Problem Overview

My Question?

Android Solutions

Solution 1 - Android

Solution 2 - Android

Amazon Athena: no viable alternative at input

Gradle sync failed, NDK not configured, download it with SDK manager

Attributions