中心的Andr​​oid壁纸 [英] Center Android Wallpaper

问题描述

我想做出改变系统壁纸的应用程序。在我的code我得到一个具有所需的最小尺寸（从WallpaperManager）的图像。例如在Nexus One上所需的最小尺寸是884x800。当我得到我的形象andset它作为墙纸，它会自动对齐左它让我可以看到只有884x800的图像的左侧（Nexus One手机的屏幕解析度是480×800）。

I'm trying to make an app that changes the system wallpaper. In my code I get an image that has the desired minimum dimensions (from WallpaperManager). For example on the Nexus One the desired minimum dimensions are 884x800. When I get my image andset it as the wallpaper it automatically "left aligns" it so that I can see only the left side of the 884x800 image (The Nexus One's screen res is 480x800).

有没有办法，我可以设置壁纸故有中心？

Is there a way I can set the wallpaper so it is "centered"?

我设置的墙纸是这样的：

I am setting the wallpaper like this:

WallpaperManager wallpaperManager = WallpaperManager.getInstance(getApplicationContext());

try {
    wallpaperManager.setBitmap(bitmap);
} catch (IOException e) {
    Log.e("Error", e.toString());
}

注意：如果我得到为480x800的它吹起来，所以我只能看到当它是壁纸的左上角的图片

NOTE: If I get the image as 480x800 it blows it up so I can only see the top left corner when it is the wallpaper.

下面是一个形象，是884x800的例子：

Here is an example of an image that is 884x800:

下面是什么样子时，我将其设置为墙纸的例子：

Here is an example of what it looks like when I set it as the wallpaper:

下面是什么样子时，我用一个480x800的图像的例子：

Here is an example of what it looks like when I use a 480x800 image:

推荐答案

我的解决方案

在结束我在屏幕尺寸的图像（480×800的Nexus One的），然后复制成一个位图，它是需要的尺寸（884x800对Nexus One的）。

In the end I got the image in the screen size (480x800 for the Nexus One) and then copied it into a bitmap that was the desired dimensions (884x800 for the Nexus One).

//Getting the image
Display display = getWindowManager().getDefaultDisplay();
        screenSize = new Point();
display.getSize(screenSize);
new LoadImageTask(screenSize.x, screenSize.y, this).execute();

...

// In the response listener
WallpaperManager wallpaperManager = WallpaperManager.getInstance(this);
Point desiredSize = new Point(
        wallpaperManager.getDesiredMinimumWidth(),
        wallpaperManager.getDesiredMinimumHeight());

Bitmap wallpaper = Bitmap.createBitmap(desiredSize.x, desiredSize.y, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(wallpaper);
canvas.drawBitmap(bitmap, 0, 0, null);

try {
    wallpaperManager.setBitmap(wallpaper);
} catch (IOException e) {
    Log.e("Error", e.toString());
}

和它适用于所有的虚拟屏幕

And it works on all virtual screens

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