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在系统升级到Android10以上之后#xff0c;之前的截屏方式不能用了#xff0c;而且必须将MediaProject放在forground service里面跑才行。网上搜了一圈#xff0c;都是语焉不详或者没有完整的一个代码应用。只能自己写一个#xff0c;记录下
代码实现
新建一个Scre…起因
在系统升级到Android10以上之后之前的截屏方式不能用了而且必须将MediaProject放在forground service里面跑才行。网上搜了一圈都是语焉不详或者没有完整的一个代码应用。只能自己写一个记录下
代码实现
新建一个ScreenRecorder.java public class ScreenRecorder extends Service {NullableOverridepublic IBinder onBind(Intent intent) {return null;}private MediaProjection mMediaProjection;private MediaProjectionManager mMediaProjectionManager;private int SERVICE_ID 123;private String NOTIFICATION_CHANNEL_ID Screen Capture channel;public static final String ACTION_START RecordService:Start;public static final String ACTION_SNAPSHOT RecordService:Snapshot;public static final String ACTION_STOP RecordService:Stop;public static final String EXTRA_RESULT_DATA RecordService:Extra:ResultData;Overridepublic void onCreate() {super.onCreate();createNotificationChannel();startForeground(SERVICE_ID, new NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID).build());mMediaProjectionManager (MediaProjectionManager) getApplicationContext().getSystemService(Context.MEDIA_PROJECTION_SERVICE);}Overridepublic int onStartCommand(final Intent intent, int flags, int startId) {if (intent ! null) {if (intent.getAction() ! null) {switch (intent.getAction()) {case ACTION_START:Log.d(TAG, onStartCommand: start recorder);mMediaProjection mMediaProjectionManager.getMediaProjection(Activity.RESULT_OK,Objects.requireNonNull(intent.getParcelableExtra(EXTRA_RESULT_DATA)));startCapture();return START_STICKY;case ACTION_SNAPSHOT:
// stopSelf();snapshot();break;case ACTION_STOP:Log.d(TAG, onStartCommand: close imagereader);if (mImageReader ! null){try{mImageReader.close();}catch (Exception exception){Log.e(TAG, onStartCommand: exception.getMessage() );}}stopSelf();return START_NOT_STICKY;}}}return super.onStartCommand(intent, flags, startId);}private void createNotificationChannel() {NotificationChannel notificationChannel new NotificationChannel(NOTIFICATION_CHANNEL_ID,ScreenRecorder,NotificationManager.IMPORTANCE_DEFAULT);NotificationManager manager getSystemService(NotificationManager.class);manager.createNotificationChannel(notificationChannel);}private ImageReader mImageReader;private void startCapture() {DisplayMetrics displayMetrics new DisplayMetrics();WindowManager windowManager (WindowManager) getSystemService(Context.WINDOW_SERVICE);windowManager.getDefaultDisplay().getMetrics(displayMetrics);int screenWidth displayMetrics.widthPixels;int screenHeight displayMetrics.heightPixels;mImageReader ImageReader.newInstance(screenWidth, screenHeight, PixelFormat.RGBA_8888, 2);mMediaProjection.createVirtualDisplay(mediaprojection, screenWidth, screenHeight,displayMetrics.densityDpi, DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR, mImageReader.getSurface(), null, null);}private void snapshot(){if (mImageReader ! null){Image image mImageReader.acquireLatestImage();int width image.getWidth();int height image.getHeight();final Image.Plane[] planes image.getPlanes();final ByteBuffer buffer planes[0].getBuffer();int pixelStride planes[0].getPixelStride();int rowStride planes[0].getRowStride();int rowPadding rowStride - pixelStride * width;Bitmap bitmap Bitmap.createBitmap(width rowPadding / pixelStride, height,Bitmap.Config.ARGB_8888);bitmap.copyPixelsFromBuffer(buffer);bitmap Bitmap.createBitmap(bitmap, 0, 0, width, height);//保存图片到本地CommonLib.saveMyBitmap(snapshot, bitmap);image.close();}}
}AndroidManifest.xml中注册
!-- 申请权限 /--
uses-permission android:nameandroid.permission.FOREGROUND_SERVICE /
service android:name.ScreenRecorderandroid:exportedtrueandroid:foregroundServiceTypemediaProjection/Activity中调用 public void onCreate(Bundle bundle) {super.onCreate(bundle);}
/**
* 申请权限
*/public void requestCapturePermission() {MediaProjectionManager mediaProjectionManager (MediaProjectionManager) getSystemService(MEDIA_PROJECTION_SERVICE);Intent intent new Intent(mediaProjectionManager.createScreenCaptureIntent());startActivityForResult(intent, REQUESTRESULT);}
// 回调里面启动服务
Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {if (resultCode RESULT_OK) {Intent intent new Intent(this, ScreenRecorder.class);intent.setAction(ScreenRecorder.ACTION_START);intent.putExtra(ScreenRecorder.EXTRA_RESULT_DATA, data);startForegroundService(intent);EnableTakePhotos true;}
}snapshot方法
private void startSnapshot(){Intent intent new Intent(this, ScreenRecorder.class);intent.setAction(ScreenRecorder.ACTION_SNAPSHOT);startService(intent);
}可以设置一个按钮然后在点击事件里面调用startSnapshot()方法即可
