如何在Android中设置壁纸？ [英] How to set wallpaper in Android?

问题描述

可能重复：
  机器人 - 如何设置墙纸图像

Possible Duplicate:
Android - how to set the wallpaper image

我甲肝开始在做Android应用程序。我想设置wallpaer在Android的这后台运行（使用服务）和壁纸将在5分钟在后台更改。我把图像文件中绘制对象。任何人都请发送的编码设置wallpaer 5分钟后retriving吧..

I hav started doing app in Android. I want to set wallpaer in Android which run in Background(using Service) and the wallpaper will change within 5 minute in background. I keep the image files in Drawable. Anyone kindly send the coding for setting the wallpaer and retriving it after 5 minutes..

感谢名单提前。

推荐答案

<一个href="http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/app/SetWallpaperActivity.html">Here就是一个例子。但不幸的是它为我不起作用。基本上我用下面的code：

Here is an example. But unfortunately it does not work for me. Basically I am using the following code:

code：

    WallpaperManager myWallpaperManager = WallpaperManager
            .getInstance(this);  
    String imageFilePath = getFilePath(imageUri);
    Bitmap myBitmap = BitmapFactory.decodeFile(imageFilePath);
    if (myBitmap != null) {  
        try {  
            myWallpaperManager.setBitmap(myBitmap);  
        } catch (IOException e) {  
            showToast(ImageDisplay.this,
                    "Failed to set Backgroundimage");  
        }  
    } else {  
        showToast(ImageDisplay.this, "Failed to decode image.");  
    }

在 imageFilePath 是正确的，据我可以告诉（我还针对不同的东西，在工作）。没有错误或异常。我的手机的背景是在调用这个程序后，只是空的。我究竟做错了什么？

The imageFilePath is correct as far as I can tell (as I also for different stuff that is working). There is no error or exception. The background of my phone is just empty after calling this app. What am I doing wrong?

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