Android API Demos 2.2 SetWallpaper, Translucent和TranslucentBlur

核心提示：SetWallpaperWallpaperManager是管理wallpaper的主要类，通过它我们可获取当前系统壁纸、设置壁纸等等，Android API Demos 2.2 SetWallpaper, Translucent和TranslucentBlur，示例中的主要代码：Java代码1. package com

SetWallpaper

WallpaperManager是管理wallpaper的主要类，通过它我们可获取当前系统壁纸、设置壁纸等等。

示例中的主要代码：

Java代码

1. package com.example.android.apis.app;

2.

3. // Need the following import to get access to the app resources, since this

4. // class is in a sub-package.

5. import com.example.android.apis.R;

6.

7. import java.io.IOException;

8.

9. import android.app.Activity;

10. import android.app.WallpaperManager;

11. import android.graphics.Color;

12. import android.graphics.PorterDuff;

13. import android.graphics.drawable.Drawable;

14. import android.os.Bundle;

15. import android.view.View;

16. import android.view.WindowManager;

17. import android.view.View.OnClickListener;

18. import android.widget.Button;

19. import android.widget.ImageView;

20.

21. public class SetWallpaperActivity extends Activity {

22. final static private int[] mColors =

23. {Color.BLUE, Color.GREEN, Color.RED, Color.LTGRAY, Color.MAGENTA, Color.CYAN,

24. Color.YELLOW, Color.WHITE};

25.

26. @Override

27. protected void onCreate(Bundle savedInstanceState) {

28. super.onCreate(savedInstanceState);

29. setContentView(R.layout.wallpaper_2);

30. // 1.获取与给定Context关联的WallpaperManager

31. final WallpaperManager wallpaperManager = WallpaperManager.getInstance(this);

32. // 2.获取当前系统壁纸

33. final Drawable wallpaperDrawable = wallpaperManager.getDrawable();

34. final ImageView imageView = (ImageView) findViewById(R.id.imageview);

35. imageView.setDrawingCacheEnabled(true);

36. imageView.setImageDrawable(wallpaperDrawable);