设置动态壁纸不工作 [英] Setting the live wallpaper not working
本文介绍了设置动态壁纸不工作的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我已经问过这个，但它已被迁移到android.stackexchange.com和关闭那里offtopic。
所以在这里，我们又来了：
我做了一个简单的动态壁纸。在preVIEW我可以看到它，但如果我尝试将其设置为我的动态壁纸的Android保持旧墙纸那里。
任何想法？
AndroidManifest.xml中
＆LT;？XML版本=1.0编码=UTF-8＆GT？;
＆LT;清单的xmlns：机器人=http://schemas.android.com/apk/res/android
包=com.localfotos
安卓版code =1
机器人：=的versionName1.0＆GT;
＆LT;采用-SDK安卓的minSdkVersion =7/＆GT; ＆LT;使用特征的android：NAME =android.software.live_wallpaper/＆GT; ＆lt;应用机器人：图标=@绘制/图标机器人：标签=@字符串/ APP_NAME＆GT; ＆LT;服务机器人：名字=。MyWallpaperService
机器人：标签=@字符串/ APP_NAME
机器人：图标=@绘制/图标＆GT; ＆所述;意图滤光器＆gt;
＆lt;作用机器人：名字=android.service.wallpaper.WallpaperService/＆GT;
＆所述; /意图滤光器＆gt;
＆LT;元数据机器人：名字=android.service.wallpaper
机器人：资源=@ XML / livewallpaper/＆GT; ＆LT; /服务＆GT; ＆LT; /用途＆gt;
＆LT; /清单＆GT;
livewallpaper.xml
＆LT;壁纸的xmlns：机器人=http://schemas.android.com/apk/res/android
/＆GT;
MyWallpaperService.java
包com.localfotos;进口android.service.wallpaper.WallpaperService;
进口android.view.MotionEvent;
进口android.view.SurfaceHolder;公共类MyWallpaperService扩展WallpaperService { @覆盖
公共引擎onCreateEngine（）{
返回新MyEngine（）;
} @覆盖
公共无效的onCreate（）{
super.onCreate（）;
} @覆盖
公共无效的onDestroy（）{
super.onDestroy（）;
} 公共类MyEngine扩展引擎{ 私人MyWallpaperPainting画; MyEngine（）{
SurfaceHolder支架= getSurfaceHolder（）;
绘画=新MyWallpaperPainting（架，
getApplicationContext（））;
} @覆盖
公共无效的onCreate（SurfaceHolder surfaceHolder）{
super.onCreate（surfaceHolder）;
//注册监听器和回调这里
setTouchEventsEnabled（真）;
} @覆盖
公共无效的onDestroy（）{
super.onDestroy（）;
//删除监听器和回调这里
painting.stopPainting（）;
} @覆盖
公共无效onVisibilityChanged（布尔可见）{
如果（可见）{
//注册监听器和回调这里
painting.resumePainting（）;
}其他{
//删除监听器和回调这里
painting.pausePainting（）;
}
} @覆盖
公共无效onSurfaceChanged（SurfaceHolder架，INT格式，
INT宽度，高度INT）{
super.onSurfaceChanged（保持器，格式，宽度，高度）;
painting.setSurfaceSize（宽度，高度）;
} @覆盖
公共无效onSurfaceCreated（SurfaceHolder持有人）{
super.onSurfaceCreated（保持器）;
//开始绘制
painting.start（）;
} @覆盖
公共无效onSurfaceDestroyed（SurfaceHolder持有人）{
super.onSurfaceDestroyed（保持器）;
布尔重试= TRUE;
painting.stopPainting（）;
而（重试）{
尝试{
painting.join（）;
重试= FALSE;
}赶上（InterruptedException的E）{}
}
} @覆盖
公共无效onOffsetsChanged（浮动xOffset，浮yOffset，
浮XSTEP，浮yStep，诠释XPIXELS，诠释YPIXELS）{
} @覆盖
公共无效onTouchEvent（MotionEvent事件）{
super.onTouchEvent（事件）;
painting.doTouchEvent（事件）;
} }}
MyWallpaperPainting.java
包com.localfotos;进口android.content.Context;
进口android.graphics.Canvas;
进口android.graphics.Paint;
进口android.graphics.Path;
进口android.util.Log;
进口android.view.MotionEvent;
进口android.view.SurfaceHolder;公共类MyWallpaperPainting继承Thread {
私有静态最后弦乐TAG =MyWallpaperPainting;
/ **参考了查看和上下文* /
私人SurfaceHolder surfaceHolder;
私人上下文的背景下; / **州* /
私人布尔等;
私人布尔运行; / **尺寸* /
私人诠释宽度;
私人诠释高度; / **时间跟踪* /
私人长期previousTime;
私人长期currentTime的; 公共MyWallpaperPainting（SurfaceHolder surfaceHolder，上下文的背景下）{
//保持上下文和面的基准
//如果要膨胀是需要的上下文
//从livewallpaper的apk一些资源
this.surfaceHolder = surfaceHolder;
this.context =背景;
//不要移动，直到表面被创建并显示
this.wait =真;
} / **
*暂停动态壁纸动画
* /
公共无效pausePainting（）{
this.wait =真;
同步（本）{
this.notify（）;
}
} / **
*简历动态壁纸动画
* /
公共无效resumePainting（）{
this.wait = FALSE;
同步（本）{
this.notify（）;
}
} / **
*停止动态壁纸动画
* /
公共无效stopPainting（）{
this.run = FALSE;
同步（本）{
this.notify（）;
}
} @覆盖
公共无效的run（）{
this.run = TRUE;
帆布C = NULL;
而（运行）{
尝试{
C = this.surfaceHolder.lockCanvas（NULL）;
同步（this.surfaceHolder）{
currentTime的= System.currentTimeMillis的（）;
updatePhysics（）;
doDraw（C）;
previousTime = currentTime的;
}
} {最后
如果（C！= NULL）{
this.surfaceHolder.unlockCanvasAndPost（C）;
}
}
//暂停，如果没有必要动画
同步（本）{
如果（等待）{
尝试{
等待（）;
}赶上（例外五）{}
}
} 同步（本）{
尝试{
等待（1000）;
}赶上（InterruptedException的E）{}
}
}
} / **
*调用表面尺寸变化时
* /
公共无效setSurfaceSize（INT宽度，高度INT）{
this.width =宽度;
this.height =高度;
同步（本）{
this.notify（）;
}
} / **
*调用而屏幕被触摸
* /
公共无效doTouchEvent（MotionEvent事件）{
//此处处理该事件
//如果有什么动画
//再醒来
this.wait = FALSE;
同步（本）{
通知（）;
}
} / **
*做实际的绘图东西
* /
私人无效doDraw（帆布油画）{
/ **
*更新动画，精灵或什么的。
*如果有什么动画设置等待
*线程真正的属性
* / 涂料mPaint =新的油漆（）;
mPaint.setDither（真）;
mPaint.setColor（0xFFFFFF00）;
mPaint.setStyle（Paint.Style.STROKE）;
mPaint.setStrokeJoin（Paint.Join.ROUND）;
mPaint.setStrokeCap（Paint.Cap.ROUND）;
mPaint.setStrokeWidth（3）; 路径path =新路径（）;
path.lineTo（10，100）; canvas.drawColor（0xFFFFFF00）; Log.d（TAGdoDraw）; } 私人无效updatePhysics（）{
//如果没有被更新：
// this.wait = TRUE;
}}
解决方案
您清单缺少BIND_WALLPAPER许可。请参见SDK中立方的例子。
安卓权限=android.permission.BIND_WALLPAPER＆GT;
I already asked this, but it was migrated to android.stackexchange.com and closed there as offtopic. So here we go again:
I made a simple live wallpaper. On the preview I can see it but if I try to set it as my live wallpaper Android keeps the old wallpaper there.
Any ideas?
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.localfotos"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="7" />
<uses-feature android:name="android.software.live_wallpaper" />
<application android:icon="@drawable/icon" android:label="@string/app_name">
<service android:name=".MyWallpaperService"
android:label="@string/app_name"
android:icon="@drawable/icon">
<intent-filter>
<action android:name="android.service.wallpaper.WallpaperService" />
</intent-filter>
<meta-data android:name="android.service.wallpaper"
android:resource="@xml/livewallpaper" />
</service>
</application>
</manifest>
livewallpaper.xml
<wallpaper xmlns:android="http://schemas.android.com/apk/res/android"
/>
MyWallpaperService.java
package com.localfotos;
import android.service.wallpaper.WallpaperService;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
public class MyWallpaperService extends WallpaperService {
@Override
public Engine onCreateEngine() {
return new MyEngine();
}
@Override
public void onCreate() {
super.onCreate();
}
@Override
public void onDestroy() {
super.onDestroy();
}
public class MyEngine extends Engine {
private MyWallpaperPainting painting;
MyEngine() {
SurfaceHolder holder = getSurfaceHolder();
painting = new MyWallpaperPainting(holder,
getApplicationContext());
}
@Override
public void onCreate(SurfaceHolder surfaceHolder) {
super.onCreate(surfaceHolder);
// register listeners and callbacks here
setTouchEventsEnabled(true);
}
@Override
public void onDestroy() {
super.onDestroy();
// remove listeners and callbacks here
painting.stopPainting();
}
@Override
public void onVisibilityChanged(boolean visible) {
if (visible) {
// register listeners and callbacks here
painting.resumePainting();
} else {
// remove listeners and callbacks here
painting.pausePainting();
}
}
@Override
public void onSurfaceChanged(SurfaceHolder holder, int format,
int width, int height) {
super.onSurfaceChanged(holder, format, width, height);
painting.setSurfaceSize(width, height);
}
@Override
public void onSurfaceCreated(SurfaceHolder holder) {
super.onSurfaceCreated(holder);
// start painting
painting.start();
}
@Override
public void onSurfaceDestroyed(SurfaceHolder holder) {
super.onSurfaceDestroyed(holder);
boolean retry = true;
painting.stopPainting();
while (retry) {
try {
painting.join();
retry = false;
} catch (InterruptedException e) {}
}
}
@Override
public void onOffsetsChanged(float xOffset, float yOffset,
float xStep, float yStep, int xPixels, int yPixels) {
}
@Override
public void onTouchEvent(MotionEvent event) {
super.onTouchEvent(event);
painting.doTouchEvent(event);
}
}
}
MyWallpaperPainting.java
package com.localfotos;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Path;
import android.util.Log;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
public class MyWallpaperPainting extends Thread {
private static final String TAG = "MyWallpaperPainting";
/** Reference to the View and the context */
private SurfaceHolder surfaceHolder;
private Context context;
/** State */
private boolean wait;
private boolean run;
/** Dimensions */
private int width;
private int height;
/** Time tracking */
private long previousTime;
private long currentTime;
public MyWallpaperPainting(SurfaceHolder surfaceHolder, Context context) {
// keep a reference of the context and the surface
// the context is needed if you want to inflate
// some resources from your livewallpaper .apk
this.surfaceHolder = surfaceHolder;
this.context = context;
// don't animate until surface is created and displayed
this.wait = true;
}
/**
* Pauses the live wallpaper animation
*/
public void pausePainting() {
this.wait = true;
synchronized(this) {
this.notify();
}
}
/**
* Resume the live wallpaper animation
*/
public void resumePainting() {
this.wait = false;
synchronized(this) {
this.notify();
}
}
/**
* Stop the live wallpaper animation
*/
public void stopPainting() {
this.run = false;
synchronized(this) {
this.notify();
}
}
@Override
public void run() {
this.run = true;
Canvas c = null;
while (run) {
try {
c = this.surfaceHolder.lockCanvas(null);
synchronized (this.surfaceHolder) {
currentTime = System.currentTimeMillis();
updatePhysics();
doDraw(c);
previousTime = currentTime;
}
} finally {
if (c != null) {
this.surfaceHolder.unlockCanvasAndPost(c);
}
}
// pause if no need to animate
synchronized (this) {
if (wait) {
try {
wait();
} catch (Exception e) {}
}
}
synchronized (this){
try{
wait(1000);
}catch (InterruptedException e){}
}
}
}
/**
* Invoke when the surface dimension change
*/
public void setSurfaceSize(int width, int height) {
this.width = width;
this.height = height;
synchronized(this) {
this.notify();
}
}
/**
* Invoke while the screen is touched
*/
public void doTouchEvent(MotionEvent event) {
// handle the event here
// if there is something to animate
// then wake up
this.wait = false;
synchronized(this) {
notify();
}
}
/**
* Do the actual drawing stuff
*/
private void doDraw(Canvas canvas) {
/**
* Update the animation, sprites or whatever.
* If there is nothing to animate set the wait
* attribute of the thread to true
*/
Paint mPaint = new Paint();
mPaint.setDither(true);
mPaint.setColor(0xFFFFFF00);
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setStrokeJoin(Paint.Join.ROUND);
mPaint.setStrokeCap(Paint.Cap.ROUND);
mPaint.setStrokeWidth(3);
Path path = new Path();
path.lineTo(10, 100);
canvas.drawColor(0xFFFFFF00);
Log.d(TAG, "doDraw");
}
private void updatePhysics() {
// if nothing was updated :
// this.wait = true;
}
}
解决方案
Your manifest is missing the BIND_WALLPAPER permission. See the Cube example in the SDK.
android:permission="android.permission.BIND_WALLPAPER">
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