Android代码截屏

墨蓝 2022-09-18 14:50 222阅读 0赞

public class ScreenShot \{  
    // 获取指定Activity的截屏，保存到png文件  
    private static Bitmap takeScreenShot(Activity activity) \{  
        // View是你需要截图的View  
        View view = activity.getWindow().getDecorView();  
        view.setDrawingCacheEnabled(true);  
        view.buildDrawingCache();  
        Bitmap b1 = view.getDrawingCache();  
  
        // 获取状态栏高度  
        Rect frame = new Rect();  
        activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);  
        int statusBarHeight = frame.top;  
        Log.i("TAG", "" + statusBarHeight);  
  
        // 获取屏幕长和高  
        int width = activity.getWindowManager().getDefaultDisplay().getWidth();  
        int height = activity.getWindowManager().getDefaultDisplay()  
                .getHeight();  
        // 去掉标题栏  
        // Bitmap b = Bitmap.createBitmap(b1, 0, 25, 320, 455);  
        Bitmap b = Bitmap.createBitmap(b1, 0, statusBarHeight, width, height  
                - statusBarHeight);  
        view.destroyDrawingCache();  
        return b;  
    \}  
  
    // 保存到sdcard  
    private static void savePic(Bitmap b, String strFileName) \{  
        FileOutputStream fos = null;  
        try \{  
            fos = new FileOutputStream(strFileName);  
            if (null != fos) \{  
                b.compress(Bitmap.CompressFormat.PNG, 90, fos);  
                fos.flush();  
                fos.close();  
            \}  
        \} catch (FileNotFoundException e) \{  
            e.printStackTrace();  
        \} catch (IOException e) \{  
            e.printStackTrace();  
        \}  
    \}  
  
    // 程序入口  
    public static void shoot(Activity a) \{  
        ScreenShot.savePic(ScreenShot.takeScreenShot(a), "sdcard/xx.png");  
    \}  
\}

需要注意的是，shoot方法只能在view已经被加载后方可调用。

或者在    @Override  
    public void onWindowFocusChanged(boolean hasFocus) \{  
        // TODO Auto-generated method stub  
        super.onWindowFocusChanged(hasFocus);  
        ScreenShot.shoot(this);  
    \}中调用