截取屏幕，并保存图片到本地（画廊）

生成bitmap

 Bitmap bitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(),
                Bitmap.Config.ARGB_8888);
        //利用bitmap生成画布
        Canvas canvas = new Canvas(bitmap);
        //把view中的内容绘制在画布上
        view.draw(canvas);

保存bitmap

 public static File saveImageToGallery(Context context, Bitmap bmp, String path) {
        // 首先保存图片
        String storePath = Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + "金融矿工";
        File appDir = new File(storePath);
        if (!appDir.exists()) {
            appDir.mkdir();
        }
        String fileName = KGEnvironment.uid() + path + ".jpg";
        File file = new File(appDir, fileName);
        if (file.exists()) {
            file.delete();
        }
        try {
            FileOutputStream fos = new FileOutputStream(file);
            //通过io流的方式来压缩保存图片
            bmp.compress(Bitmap.CompressFormat.JPEG, 60, fos);
            fos.flush();
            fos.close();

            //保存图片后发送广播通知更新数据库
            Uri uri = Uri.fromFile(file);
            context.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, uri));

        } catch (IOException e) {
            e.printStackTrace();
        }
        return file;
    }

完成的方法调用

                
 Bitmap bitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(),
                Bitmap.Config.ARGB_8888);
        //利用bitmap生成画布
        Canvas canvas = new Canvas(bitmap);
        //把view中的内容绘制在画布上
        view.draw(canvas);
//根据需要设置路径
saveImageToGallery(mContext, bitmap ,"bitmap");