 |
| load attribute resource of android:src in XML |
Copy the GIFs to /res/drawable folder.
android_er.gif
android_er_rev.gif
Modify activity_main.xml to define android:src in <com.example.androidgif.GifView>.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.example.androidgif.MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:autoLink="web"
android:text="http://arteluzevida.blogspot.com/"
android:textStyle="bold" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/android_er" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#ff000090"
android:orientation="vertical"
android:padding="5dp" >
<com.example.androidgif.GifView
android:id="@+id/gifview"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#ff000090"
android:orientation="vertical"
android:padding="5dp" >
<com.example.androidgif.GifView
android:id="@+id/gifview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/android_er" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#ff000090"
android:orientation="vertical"
android:padding="5dp" >
<com.example.androidgif.GifView
android:id="@+id/gifview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/android_er_rev" />
</LinearLayout>
</LinearLayout>
<TextView
android:id="@+id/textinfo"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="info..." />
</LinearLayout>
GifView.java
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;
import android.widget.Toast;
public class GifView extends View {
//Set true to use decodeStream
//Set false to use decodeByteArray
private static final boolean DECODE_STREAM = true;
private InputStream gifInputStream;
private Movie gifMovie;
private int movieWidth, movieHeight;
private long movieDuration;
private long mMovieStart;
public GifView(Context context) {
super(context);
init(context, null);
}
public GifView(Context context, AttributeSet attrs) {
super(context, attrs);
init(context, attrs);
}
public GifView(Context context, AttributeSet attrs,
int defStyleAttr) {
super(context, attrs, defStyleAttr);
init(context, attrs);
}
private void init(final Context context, AttributeSet attrs){
setFocusable(true);
if(attrs == null){
Toast.makeText(getContext(),
"gifResource: null",
Toast.LENGTH_LONG).show();
gifMovie = null;
movieWidth = 0;
movieHeight = 0;
movieDuration = 0;
}else{
int gifResource = attrs.getAttributeResourceValue(
"http://schemas.android.com/apk/res/android",
"src",
0);
if(gifResource == 0){
Toast.makeText(getContext(),
"gifResource: 0",
Toast.LENGTH_LONG).show();
gifMovie = null;
movieWidth = 0;
movieHeight = 0;
movieDuration = 0;
}else{
Toast.makeText(getContext(),
"gifResource: " + gifResource,
Toast.LENGTH_LONG).show();
gifInputStream = context.getResources().openRawResource(gifResource);
if(DECODE_STREAM){
gifMovie = Movie.decodeStream(gifInputStream);
}else{
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();
}
}
}
Other files, MainActivity.java and AndroidManifest.xml to turn OFF hardwareAccelerated, refer to the post "Play animated GIF using android.graphics.Movie, with Movie.decodeStream(InputStream)".
Download the files.
