手机截屏

用微博的朋友，都有过发带图片功能微博的经历。如果想要把当前屏幕的内容发送到微博去分享，该怎么办呢？

下面来介绍一下通过代码来截图当前屏幕，并保存起来：

public static byte[] getCurScreenPic(Activity activity) {
    // 1.构建Bitmap
    WindowManager windowManager = activity.getWindowManager();
    Display display = windowManager.getDefaultDisplay();
    int w = display.getWidth();
    int h = display.getHeight();

    Bitmap Bmp = Bitmap.createBitmap(w, h, Config.ARGB_8888);

    // 2.获取屏幕
    View decorview = activity.getWindow().getDecorView();
    decorview.setDrawingCacheEnabled(true);
    Bmp = decorview.getDrawingCache();

    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    Bmp.compress(Bitmap.CompressFormat.PNG, 90, baos);

    byte[] b = baos.toByteArray();

    try {
        baos.flush();
        baos.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return b;