Play animated GIF using android.graphics.Movie, with Movie.decodeByteArray(InputStream)

Implement a custom view, GifView, to display animated GIF using android.graphics.Movie, load movie with Movie.decodeByteArray(), instead of loading with Movie.decodeStream().

Play animated GIF using android.graphics.Movie, with Movie.decodeByteArray(InputStream)

Modify GifView.java from previous example of loading with Movie.decodeStream(), to load with Movie.decodeByteArray().

package com.example.androidgif;

import java.io.ByteArrayOutputStream;
import java.io.InputStream;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Movie;
import android.util.AttributeSet;
import android.view.View;

public class GifView extends View {
 
 private InputStream gifInputStream;
 private Movie gifMovie;
 private int movieWidth, movieHeight;
 private long movieDuration;
 private long mMovieStart;

 public GifView(Context context) {
  super(context);
  init(context);
 }

 public GifView(Context context, AttributeSet attrs) {
  super(context, attrs);
  init(context);
 }

 public GifView(Context context, AttributeSet attrs, 
   int defStyleAttr) {
  super(context, attrs, defStyleAttr);
  init(context);
 }
 
 private void init(Context context){
  setFocusable(true);
  gifInputStream = context.getResources()
    .openRawResource(R.drawable.android_er);
  
  //gifMovie = Movie.decodeStream(gifInputStream);
  byte[] array = streamToBytes(gifInputStream);
        gifMovie = Movie.decodeByteArray(array, 0, array.length);

  movieWidth = gifMovie.width();
  movieHeight = gifMovie.height();
  movieDuration = gifMovie.duration();
 }
 
 private static byte[] streamToBytes(InputStream is) {
        ByteArrayOutputStream os = new ByteArrayOutputStream(1024);
        byte[] buffer = new byte[1024];
        int len;
        try {
            while ((len = is.read(buffer)) >= 0) {
                os.write(buffer, 0, len);
            }
        } catch (java.io.IOException e) {
        }
        return os.toByteArray();
    }

 @Override
 protected void onMeasure(int widthMeasureSpec, 
   int heightMeasureSpec) {
  setMeasuredDimension(movieWidth, movieHeight);
 }
 
 public int getMovieWidth(){
  return movieWidth;
 }
 
 public int getMovieHeight(){
  return movieHeight;
 }
 
 public long getMovieDuration(){
  return movieDuration;
 }

 @Override
 protected void onDraw(Canvas canvas) {

  long now = android.os.SystemClock.uptimeMillis();
        if (mMovieStart == 0) {   // first time
            mMovieStart = now;
        }
        
        if (gifMovie != null) {

            int dur = gifMovie.duration();
            if (dur == 0) {
                dur = 1000;
            }

            int relTime = (int)((now - mMovieStart) % dur);
            
            gifMovie.setTime(relTime);

            gifMovie.draw(canvas, 0, 0);
            invalidate();
            
        }
        
 }

}

All other files, include the animated GIF, activity_main.xml, MainActivity.java and AndroidManifest.xml; refer to previous post Play animated GIF using android.graphics.Movie, with Movie.decodeStream(InputStream)

Download the files.

Next:
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