AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="pe.berabue.livewallpaper"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".LiveWallPaPer_Canvas"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".WallPaPer_Canvas"
android:label="@string/app_name"
android:permission="android.permission.BIND_WALLPAPER">
<intent-filter>
<action android:name="android.service.wallpaper.WallpaperService"/>
</intent-filter>
<meta-data android:name="android.service.wallpaper" android:resource="@xml/ex"/>
</service>
</application>
<uses-sdk android:minSdkVersion="7" />
<uses-feature android:name="android.software.live_wallpaper" />
</manifest>
xml파일을 syntaxhighlighter로 변환하면 이상하게 /> 문자열이 자동으로 바뀌어버리는......
아무튼, Activity는 필수가 아니다. 기본적으로 service부분과 uses-feature 부분만 넣어주면된다.
ex.xml
<?xml version="1.0" encoding="UTF-8"?>
<wallpaper
xmlns:android="http://schemas.android.com/apk/res/android"
android:thumbnail="@drawable/icon"
android:description="@string/test"
android:settingsActivity="PreferenceActivity"/>
Live Wallpaper를 적용시킬때 나오는 아이콘과 설명 그리고 설정화면을 등록해준다.
android:settingsActivity부분을 넣지않으면 설정 버튼이 나오지 않는다.
WallPePer_Canvas.java
package pe.berabue.livewallpaper;
import android.service.wallpaper.WallpaperService;
import android.util.Log;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
public class WallPaPer_Canvas extends WallpaperService {
@Override
public void onCreate() {
super.onCreate();
}
@Override
public void onDestroy() {
super.onDestroy();
}
@Override
public Engine onCreateEngine() {
return new CanvasEngine();
}
private class CanvasEngine extends Engine {
public CanvasEngine() {
}
@Override
public void onCreate(SurfaceHolder surfaceHolder) {
super.onCreate(surfaceHolder);
}
@Override
public void onDestroy() {
super.onDestroy();
}
@Override
public void onVisibilityChanged(boolean visible) {
}
@Override
public void onSurfaceCreated(SurfaceHolder holder) {
super.onSurfaceCreated(holder);
}
@Override
public void onSurfaceChanged(SurfaceHolder holder, int format, int width, int height) {
super.onSurfaceChanged(holder, format, width, height);
Log.v(null," :::: onSurfaceChanged : "+format+" / "+width+", "+height);
}
@Override
public void onSurfaceDestroyed(SurfaceHolder holder) {
super.onSurfaceDestroyed(holder);
}
@Override
public void onOffsetsChanged(float xOffset, float yOffset, float xStep, float yStep, int xPixels, int yPixels) {
Log.v(null," :::: onOffsetsChanged : "+xOffset+", "+yOffset+", "+xStep+", "+yStep+", "+xPixels+", "+yPixels);
}
@Override
public void onTouchEvent(MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
Log.v(null," :::: onTouchEvent");
}
super.onTouchEvent(event);
}
}
}
Activity대신 WallpaperService를 상속받는데 그러면
onCreateEngine() 메서드를 구현해 주어야 한다. Engine을 상속받은 CanvasEngine클래스가 중요한 부분. 클래스 이름에 Canvas를 붙인 이유는..
목표가 OpenGL용 live wallpaper이기 때문에...(?)onVisibilityChanged(); 메서드는 화면이 보여질때와 가려질때를 알아낸다. onOffsetsChanged(); 화면을 밀어 옆으로 이동할때 실행된다.
