Modify layout, to have two ImageView:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/background_dark"
tools:context=".MainActivity">
<android.support.constraint.Guideline
android:id="@+id/guideline"
android:layout_width="1dp"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.5"/>
<ImageView
android:id="@+id/gifimage1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toTopOf="@+id/guideline"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
<ImageView
android:id="@+id/gifimage2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/guideline"/>
</android.support.constraint.ConstraintLayout>
Java code:
package com.blogspot.android_er.androidimagedecoder;
import android.app.Activity;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.ImageDecoder;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.PixelFormat;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.PostProcessor;
import android.graphics.drawable.AnimatedImageDrawable;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.widget.ImageView;
import android.widget.Toast;
import java.io.IOException;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ImageView imageView1 = findViewById(R.id.gifimage1);
ImageView imageView2 = findViewById(R.id.gifimage2);
loadGif(imageView1);
loadRoundGif(imageView2);
}
PostProcessor myPostProcessor =
new PostProcessor(){
@Override
public int onPostProcess(
Canvas canvas) {
// This will create rounded corners.
Path path = new Path();
path.setFillType(Path.FillType.INVERSE_EVEN_ODD);
int width = canvas.getWidth();
int height = canvas.getHeight();
path.addRoundRect(0, 0,
width, height, 150, 150,
Path.Direction.CW);
Paint paint = new Paint();
paint.setAntiAlias(true);
paint.setColor(Color.TRANSPARENT);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC));
canvas.drawPath(path, paint);
return PixelFormat.TRANSLUCENT;
}
};
ImageDecoder.OnHeaderDecodedListener myOnHeaderDecodedListener =
new ImageDecoder.OnHeaderDecodedListener(){
@Override
public void onHeaderDecoded
(ImageDecoder decoder,
ImageDecoder.ImageInfo info,
ImageDecoder.Source source) {
decoder.setPostProcessor(myPostProcessor);
}
};
private void loadGif(ImageView iv){
try {
ImageDecoder.Source source =
ImageDecoder.createSource(getResources(), R.drawable.android_er);
Drawable drawable = ImageDecoder.decodeDrawable(source);
iv.setImageDrawable(drawable);
if (drawable instanceof AnimatedImageDrawable) {
((AnimatedImageDrawable) drawable).start();
Toast.makeText(getApplicationContext(),
"loadGif: Animation started",
Toast.LENGTH_LONG).show();
}
} catch (IOException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(),
"loadGif: IOException: \n" + e.getMessage(),
Toast.LENGTH_LONG).show();
}
}
private void loadRoundGif(ImageView iv){
try {
ImageDecoder.Source source =
ImageDecoder.createSource(getResources(), R.drawable.android_er);
//Drawable drawable = ImageDecoder.decodeDrawable(source);
Drawable drawable = ImageDecoder.decodeDrawable(source,
myOnHeaderDecodedListener);
iv.setImageDrawable(drawable);
if (drawable instanceof AnimatedImageDrawable) {
((AnimatedImageDrawable) drawable).start();
Toast.makeText(getApplicationContext(),
"loadRoundGif: Animation started",
Toast.LENGTH_LONG).show();
}
} catch (IOException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(),
"loadRoundGif: IOException: \n" + e.getMessage(),
Toast.LENGTH_LONG).show();
}
}
}
If you target to animated GIF and it cannot shown, try to disable hardwareAccelerated, refer to "Display animated GIF using ImageDecoder".
Next:
- Mix using of ImageDecoder and ObjectAnimator
