Tint bitmap in layer-list

Question

No longer relevant! This issue is related to a bug in old Android 4.x build. android:tint should now work correctly as in the example below

I'm trying to apply tint to bitmap inside < layer-list >

<?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android" >     <item>         <shape  xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval">             <solid android:color="@color/grey" />             <size android:width="45dp" android:height="45dp"/>         </shape>     </item>     <item android:left="5dp" android:right="5dp" android:top="5dp" android:bottom="5dp">         <bitmap android:src="@drawable/ic_action" android:tint="#FF000000"   />     </item> </layer-list> 

Preview shows that it should work, FROM ANDROID-STUDIO:

But it doesn't tint when deployed on device:

It does tint correctly if i use ImageView in my layout, but fails with layer-list. I believe I have tried every tintMode with no results.

Answer 1

For anyone else that may come across this question. This is what I did.

Setup

• Android Studio 2.3.2

Gradle

• minSdkVersion 15
• targetSdkVersion 25
• compile 'com.android.support:appcompat-v7:25.3.1'

Layer Drawable I added android:id=@+id/bitmapID to the item containing the bitmap

<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >     <item>         <shape android:shape="oval">             <solid android:color="#9e9e9e" />             <size android:width="45dp" android:height="45dp"/>         </shape>     </item>     <item         android:id="@+id/tintDrawableImg"         android:left="5dp"         android:right="5dp"         android:top="5dp"         android:bottom="5dp">         <bitmap android:src="@mipmap/ic_pencil" android:tint="#860000"   />     </item> </layer-list> 

Activity Layout I added the layer drawable to an ImageView

<ImageView     android:id="@+id/tintLayerTest"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_centerInParent="true"     android:src="@drawable/test_layer"/> 

MainActivity In the onCreate() method we can locate the bitmap from the layer drawable using findViewByID

public class MainActivity extends AppCompatActivity {      ImageView iv;     LayerDrawable ld;      @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);          //Declare ImageView containing LayerDrawable         iv = (ImageView)findViewById(R.id.tintLayerTest);         //Get LayerDrawable from ImageView         ld = (LayerDrawable)iv.getDrawable();         //Get specific Drawable/Bitmap from within LayerDrawable         //by ID and pass it as an independent Drawable         Drawable ldDrawable = ld.findDrawableByLayerId(R.id.tintDrawableImg);                  //Pass your new Drawable to DrawableCompat.setTint         //and define your color int         DrawableCompat.setTint(ldDrawable, ContextCompat.getColor(this, R.color.colorAccent));      } } 

I hope this helps others that come across this question.