Android 实现截屏功能

主要代码如下：

private void getScreen(View view, String filePath) {
        try {
            Bitmap bitmap = Bitmap.createBitmap(view.getWidth(),
                    view.getHeight(), Config.ARGB_8888);
            Canvas canvas=new Canvas();
            canvas.setBitmap(bitmap);
            view.draw(canvas);
            FileOutputStream outputStream=new FileOutputStream(filePath);
            bitmap.compress(CompressFormat.JPEG, 100, outputStream);
            
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

//判断sdCard是否存在
                if(sdCardStat.equals(Environment.MEDIA_MOUNTED))
                {
                    //sdCard卡路径
                    File sdSardDir=Environment.getExternalStorageDirectory();
                    getScreen((View)getWindow().getDecorView(),sdSardDir+"/test1.png");
                    Toast.makeText(MainActivity.this, "截图成功", Toast.LENGTH_LONG).show();
                }else
                {
                    Toast.makeText(MainActivity.this,"sdcard不可用", Toast.LENGTH_LONG).show();
                }

最后在AndroidManifest中添加权限

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />

 截图成功之后会在sdcard下看到test1.png图片，

本人在真机上测试可行，没有在模拟器上测试。