Animierte .GIF als Hintergrund Android

Question

Ich bin neu in Android und ich habe Probleme beim Abspielen einer animierten GIF-Datei im Hintergrund meines Layouts. Wenn ich die Anwendung starte, ist der Hintergrund ein einzelnes Bild des animierten .gif, genau wie ein Bild. Ich habe hauptsächlich in zwei Bereichen geforscht:

Der Link unten ist, wo ich die meiste Hilfe bekam.

Android OS Beginning BlogSpot

Der Link unten lässt mich denken, dass die Fehler Ich erhalte etwas mit den Klassen zu tun ist, auf privaten, öffentlichen oder geschützt.

Java Forums

Und hier ist der Code ------------------------------------- -------------------------------------------------- ----------------------------

Fehler werden durch :: ERROR # :: mit vollständigen Beschreibungen unter dem Code gekennzeichnet.

import java.io.InputStream; 

import android.os.Bundle; 
import android.app.Activity; 
import android.graphics.Canvas; 
import android.graphics.Color; 
import android.graphics.Movie; 
import android.view.Menu; 
import android.view.View; 

public class MainActivity extends Activity { 

    @Override 
    public void onCreate(Bundle savedInstanceState){ 

     super.onCreate(savedInstanceState); 

     setContentView(new MYGIFView()); :: ERROR 1 :: 
} 
} 

private class MYGIFView extends View{ :: ERROR 2 :: 
    Movie movie,movie1; 
    InputStream is=null , is1=null; 
    long moviestart; 
    public GIFView(Context context) { :: ERROR 3 :: 

     super(context);     :: ERROR 4 :: 

     is=context.getResources().openRawResource(R.drawable.swing); 

     movie=Movie.decodeStream(is); 
} 

@Override 
protected void onDraw(Canvas canvas) { 

    canvas.drawColor(Color.WHITE); 
    super.onDraw(canvas); 
    long now=android.os.SystemClock.uptimeMillis(); 
    System.out.println("now="+now); 
    if (moviestart == 0) { // first time 
    moviestart = now; 

} 

System.out.println("\tmoviestart="+moviestart); 
int relTime = (int)((now - moviestart) % movie.duration()) ; 
System.out.println("time="+relTime+"\treltime="+movie.duration()); 
movie.setTime(relTime); 
movie.draw(canvas,this.getWidth()/2-20,this.getHeight()/2-40); 
this.invalidate(); 

} 
} 

:: :: LIST ERRORS ERRORS Liste :: ERRORS Liste :: ERRORS Liste :: ERRORS Liste :: ERRORS Liste ::

:: ERROR 1 :: Der Konstruktor MYGIFView() nicht sichtbar

:: ERROR 2 :: Implizite super-constructor Ansicht() ist für sichtbaren Konstruktor undefined

:: ERROR 3 :: Rückgabetyp für die Methode fehlt

:: ERROR 4 :: Konstruktoraufruf muss die erste Anweisung in einem Konstruktor sein

.

.

---------- UPDATE --------- UPDATE ------------ UPDATE ------------ --- UPDATE ------------- UPDATE ---------- UPDATE --------- UPDATE ----------- - UPDATE --------------- UPDATE ------------- UPDATE --------- UPDATE

.

.

Ich habe die Animation list = res/ziehbar-hdpi/progress_animation.xml

erstellt

<?xml version="1.0" encoding="utf-8"?> 
<animation-list xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/selected" android:oneshot="false"> 
<item android:drawable="@drawable/frame02" android:duration="50" /> 
<item android:drawable="@drawable/frame03" android:duration="50" /> 
<item android:drawable="@drawable/frame04" android:duration="50" /> 
<item android:drawable="@drawable/frame05" android:duration="50" /> 
<item android:drawable="@drawable/frame06" android:duration="50" /> 
<item android:drawable="@drawable/frame07" android:duration="50" /> 
<item android:drawable="@drawable/frame08" android:duration="50" /> 
<item android:drawable="@drawable/frame09" android:duration="50" /> 
<item android:drawable="@drawable/frame10" android:duration="50" /> 
......................................... 
<item android:drawable="@drawable/frame57" android:duration="50" /> 
<item android:drawable="@drawable/frame58" android:duration="50" /> 
</animation-list> 

.

.

Ich habe das Layout-Datei erstellt die Bildansicht = res/layout/activity_main.xml

<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin" 
android:paddingLeft="@dimen/activity_horizontal_margin" 
android:paddingRight="@dimen/activity_horizontal_margin" 
android:paddingTop="@dimen/activity_vertical_margin" 
tools:context=".MainActivity" > 

<ImageView android:id="@+id/swing_play" android:layout_width="fill_parent" 
    android:layout_height="wrap_content" /> 

</RelativeLayout> 

zu hosten.

Java Klasse Aktivität Image und AnimationDrawable = com.example.apptwo/MainActivity.java

zu nennen.

package com.exampleone.apptwo; 

import android.os.Bundle; 
import android.app.Activity; 
import android.graphics.drawable.AnimationDrawable; 
import android.view.Menu; 
import android.widget.ImageView; 

public class MainActivity extends Activity { 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    setContentView(R.layout.acivity_main); 
    ImageView img = (ImageView)findViewById(R.id.swing_play); 
    img.setBackgroundResource(R.drawable.progress_animation); 

    AnimationDrawable frameAnimation = (AnimationDrawable) img.getBackground(); 

    frameAnimation.start(); 
} 

} 

.

Die IDE markiert keine Fehler im Code. Wenn ich die Anwendung ausführe, zeigt mein Emulator jedoch einen weißen Hintergrund mit der Nachricht "AppTwo wurde leider gestoppt".

Die ErrorLog liest = "Unbehandelte Ereignisschleife Exception"

Logcat ------------------------------- -------------------------------------------------- --------------------------------------------------

Dies ist die Session Filter Logcat

04-06 17:10:48.193: D/AndroidRuntime(989): Shutting down VM 
04-06 17:10:48.193: W/dalvikvm(989): threadid=1: thread exiting with uncaught exception (group=0x40a71930) 
04-06 17:10:48.213: E/AndroidRuntime(989): FATAL EXCEPTION: main 
04-06 17:10:48.213: E/AndroidRuntime(989): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.apptwo/com.example.apptwo.MainActivity}: java.lang.NullPointerException 
04-06 17:10:48.213: E/AndroidRuntime(989): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180) 
04-06 17:10:48.213: E/AndroidRuntime(989): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230) 
04-06 17:10:48.213: E/AndroidRuntime(989): at android.app.ActivityThread.access$600(ActivityThread.java:141) 
04-06 17:10:48.213: E/AndroidRuntime(989): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234) 
04-06 17:10:48.213: E/AndroidRuntime(989): at android.os.Handler.dispatchMessage(Handler.java:99) 
04-06 17:10:48.213: E/AndroidRuntime(989): at android.os.Looper.loop(Looper.java:137) 
04-06 17:10:48.213: E/AndroidRuntime(989): at android.app.ActivityThread.main(ActivityThread.java:5041) 
04-06 17:10:48.213: E/AndroidRuntime(989): at java.lang.reflect.Method.invokeNative(Native Method) 
04-06 17:10:48.213: E/AndroidRuntime(989): at java.lang.reflect.Method.invoke(Method.java:511) 
04-06 17:10:48.213: E/AndroidRuntime(989): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
04-06 17:10:48.213: E/AndroidRuntime(989): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
04-06 17:10:48.213: E/AndroidRuntime(989): at dalvik.system.NativeStart.main(Native Method) 
04-06 17:10:48.213: E/AndroidRuntime(989): Caused by: java.lang.NullPointerException 
04-06 17:10:48.213: E/AndroidRuntime(989): at com.example.apptwo.MainActivity.onCreate(MainActivity.java:14) 
04-06 17:10:48.213: E/AndroidRuntime(989): at android.app.Activity.performCreate(Activity.java:5104) 
04-06 17:10:48.213: E/AndroidRuntime(989): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080) 
04-06 17:10:48.213: E/AndroidRuntime(989): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144) 
04-06 17:10:48.213: E/AndroidRuntime(989): ... 11 more 

zu viele LogCat sind (alle Nachrichten) zu schreiben, aber dieses scheint unter wichtig der Fehler in der Zeit zu sein.

04-06 17:10:48.213: E/AndroidRuntime(989): FATAL EXCEPTION: main 

.

UPDATE ZU LOGCAT MIT INHALT INKLUSIVE! ! !

: error opening trace file: No such file or directory (2) 

: GC_FOR_ALLOC freed 67K, 7% free 2500K/2688K, paused 49ms, total 54ms 

: I/dalvikvm-heap(1813): Grow heap (frag case) to 4.022MB for 1536016-byte allocation 

: D/dalvikvm(1813): GC_FOR_ALLOC freed 2K, 5% free 3998K/4192K, paused 125ms, total 125ms 

: D/dalvikvm(1813): GC_CONCURRENT freed <1K, 5% free 3998K/4192K, paused 5ms+15ms, total 105ms 

: D/dalvikvm(1813): GC_FOR_ALLOC freed <1K, 5% free 3998K/4192K, paused 36ms, total 37ms 

: Grow heap (frag case) to 5.485MB for 1536016-byte allocation 

: GC_CONCURRENT freed <1K, 4% free 5498K/5696K, paused 75ms+14ms, total 156ms 

: GC_FOR_ALLOC freed <1K, 4% free 5499K/5696K, paused 32ms, total 33ms 

: Grow heap (frag case) to 6.950MB for 1536016-byte allocation 

: GC_CONCURRENT freed <1K, 3% free 6999K/7200K, paused 74ms+17ms, total 156ms 
: D/dalvikvm(1813): GC_FOR_ALLOC freed <1K, 3% free 6999K/7200K, paused 46ms, total 47ms 
: I/dalvikvm-heap(1813): Grow heap (frag case) to 8.416MB for 1536016-byte allocation 
: GC_CONCURRENT freed <1K, 3% free 8499K/8704K, paused 79ms+4ms, total 173ms 
: GC_FOR_ALLOC freed <1K, 3% free 10001K/10208K, paused 33ms, total 34ms 
: GC_FOR_ALLOC freed <1K, 2% free 11501K/11712K, paused 35ms, total 35ms 
: GC_FOR_ALLOC freed <1K, 2% free 13002K/13216K, paused 38ms, total 38ms 
: GC_FOR_ALLOC freed <1K, 2% free 14503K/14720K, paused 35ms, total 36ms 
: GC_FOR_ALLOC freed <1K, 2% free 16003K/16224K, paused 39ms, total 40ms 
: GC_FOR_ALLOC freed <1K, 2% free 17504K/17728K, paused 41ms, total 41ms 
: GC_FOR_ALLOC freed <1K, 2% free 19004K/19232K, paused 42ms, total 43ms 
: GC_FOR_ALLOC freed <1K, 2% free 20505K/20736K, paused 58ms, total 58ms 
: GC_FOR_ALLOC freed <1K, 2% free 22006K/22240K, paused 137ms, total 138ms 
: GC_FOR_ALLOC freed <1K, 1% free 23506K/23744K, paused 47ms, total 47ms 
: GC_FOR_ALLOC freed <1K, 1% free 25007K/25248K, paused 48ms, total 48ms 
: GC_FOR_ALLOC freed <1K, 1% free 26507K/26752K, paused 50ms, total 51ms 
: GC_FOR_ALLOC freed <1K, 1% free 28008K/28256K, paused 56ms, total 57ms 
: GC_FOR_ALLOC freed <1K, 1% free 29509K/29760K, paused 58ms, total 58ms 
: Clamp target GC heap from 32.398MB to 32.000MB 
: GC_FOR_ALLOC freed <1K, 1% free 31009K/31264K, paused 57ms, total 58ms 
: Clamp target GC heap from 33.863MB to 32.000MB 
: GC_FOR_ALLOC freed <1K, 1% free 32510K/32768K, paused 56ms, total 56ms 
: Forcing collection of SoftReferences for 1536016-byte allocation 
:Clamp target GC heap from 33.855MB to 32.000MB 
: GC_BEFORE_OOM freed 9K, 1% free 32500K/32768K, paused 87ms, total 88ms 
: Out of memory on a 1536016-byte allocation. 
: "main" prio=5 tid=1 RUNNABLE 
: | group="main" sCount=0 dsCount=0 obj=0x40a729a0 self=0x2a00bba8 
: | sysTid=1813 nice=0 sched=0/0 cgrp=apps handle=1073849308 
: | state=R schedstat=(3245039730 1438341923 288) utm=275 stm=49 core=0 
: at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method) 
: at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:502) 
: at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:355) 
: at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:785) 
: at android.content.res.Resources.loadDrawable(Resources.java:1965) 
: at android.content.res.Resources.getDrawable(Resources.java:660) 
: at android.graphics.drawable.AnimationDrawable.inflate(AnimationDrawable.java:282) 
: at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:885) 
: at android.graphics.drawable.Drawable.createFromXml(Drawable.java:822) 
: at android.content.res.Resources.loadDrawable(Resources.java:1950) 
: at android.content.res.Resources.getDrawable(Resources.java:660) 
: at android.view.View.setBackgroundResource(View.java:14468) 
: at com.example.appthree.MainActivity.onCreate(MainActivity.java:15) 
: at android.app.Activity.performCreate(Activity.java:5104) 
: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080) 
: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144) 
: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230) 
: at android.app.ActivityThread.access$600(ActivityThread.java:141) 
: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234) 
: at android.os.Handler.dispatchMessage(Handler.java:99) 
: at android.os.Looper.loop(Looper.java:137) 
: at android.app.ActivityThread.main(ActivityThread.java:5041) 
: at java.lang.reflect.Method.invokeNative(Native Method) 
: at java.lang.reflect.Method.invoke(Method.java:511) 
: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
: at dalvik.system.NativeStart.main(Native Method) 
: --- decoder->decode returned false 
: Shutting down VM 
: threadid=1: thread exiting with uncaught exception (group=0x40a71930) 
: FATAL EXCEPTION: main 
: java.lang.OutOfMemoryError 
: at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method) 
: at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:502) 
: at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:355) 
: at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:785) 
: at android.content.res.Resources.loadDrawable(Resources.java:1965) 
: at android.content.res.Resources.getDrawable(Resources.java:660) 
: at android.graphics.drawable.AnimationDrawable.inflate(AnimationDrawable.java:282) 
: at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:885) 
: at android.graphics.drawable.Drawable.createFromXml(Drawable.java:822) 
: at android.content.res.Resources.loadDrawable(Resources.java:1950) 
: at android.content.res.Resources.getDrawable(Resources.java:660) 
: at android.view.View.setBackgroundResource(View.java:14468) 
: at com.example.appthree.MainActivity.onCreate(MainActivity.java:15) 
: at android.app.Activity.performCreate(Activity.java:5104) 
: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080) 
: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144) 
: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230) 
: at android.app.ActivityThread.access$600(ActivityThread.java:141) 
: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234) 
: at android.os.Handler.dispatchMessage(Handler.java:99) 
: at android.os.Looper.loop(Looper.java:137) 
: at android.app.ActivityThread.main(ActivityThread.java:5041) 
: at java.lang.reflect.Method.invokeNative(Native Method) 
: at java.lang.reflect.Method.invoke(Method.java:511) 
: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
: at dalvik.system.NativeStart.main(Native Method) 
: GC_CONCURRENT freed 30038K, 93% free 2539K/32768K, paused 73ms+97ms, total 472ms 

Answer 1

Wie Martin sagt, Android unterstützt keine GIFs. Als Workaround bietet Android Animation List/AnimationDrawable an. Sie müssen das GIF in einzelne Frames [.png-Dateien] konvertieren. Ich benutze GIMP für die Umwandlung

Diese GIF kann in seine Frames unterteilt werden:

speichern sie als frame01.png, frame02.png, und so weiter, und eine Animation-Liste XML-Datei erstellen, sagen, progress_animation.xml

<animation-list android:id="@+id/selected" android:oneshot="false"> 
<item android:drawable="@drawable/frame01" android:duration="50" /> 
<item android:drawable="@drawable/frame02" android:duration="50" /> 
<item android:drawable="@drawable/frame03" android:duration="50" /> 
.... 
<item android:drawable="@drawable/frameN" android:duration="50" /> 

Um die Animation zu beginnen, müssen Sie das Bild in ein AnimationDrawable werfen, und rufen Sie() auf es starten

AnimationDrawable progressAnimation = (AnimationDrawable) yourImageView.getBackground(); 
progressAnimation.start(); 

Answer 2

Die GIF-Animation in Android unterstützt, wenn GIF-Animation als Film abgespielt wird.

Take a look.

Answer 3

setzen Sie Ihre GIF-Bild in app \ src \ main \ assets

eine Klasse

}

fügen Sie ein Layout irgendwo in Ihrem xml activity_layout machen wie

public class MyGifView extends View { 
Movie movie; 
InputStream is; 
long startTime; 

public MyGifView(Context context) { 
    super(context); 
    try { 
     is = getResources().getAssets().open("anim.gif"); 
     movie = Movie.decodeStream(is); 
    } catch (IOException e) { 
     e.printStackTrace(); 
    } 
} 

@Override 
protected void onDraw(Canvas canvas) { 
    canvas.drawColor(Color.WHITE); 
    super.onDraw(canvas); 
    long now = System.currentTimeMillis(); 
    if (startTime == 0) // first time 
     startTime = now; 
    int relTime = (int) ((now - startTime) % movie.duration()); 
    movie.setTime(relTime); 
    float scalefactorx = (float) this.getWidth()/(float) movie.width(); 
    float scalefactory = (float) this.getHeight()/(float) movie.height(); 
    canvas.scale(scalefactorx,1); 
    movie.draw(canvas, scalefactorx, scalefactory); 
    this.invalidate(); 
} 

(HintergrundFrameLayout). Verwendung in Ihrer Tätigkeit onCreate():

FrameLayout frameLayout = findViewById(R.id.backgroundFrameLayout); 
frameLayout.addView(new MyGifView(this));