android5.0截图,Android5.0以上截图方法，适配targetSdkVersion 29以上

适配了Android5.0以上的截图方法，实现了后台连续截图；使用该方法请求授权同意后开始截图：

private MediaProjectionManager mMediaProjectionManager;

public void getMediaProjectionManger() {

mMediaProjectionManager = (MediaProjectionManager) getSystemService(Context.MEDIA_PROJECTION_SERVICE);

if (mMediaProjectionManager != null) {

startActivityForResult(mMediaProjectionManager.createScreenCaptureIntent(), RECORD_REQUEST_CODE);

}

}

由于targetSdkVersion 29及以上要求getMediaProjection需要再前台服务执行，所以在onActivityResult里面启动服务：

@Override

protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {

super.onActivityResult(requestCode, resultCode, data);

if (requestCode == RECORD_REQUEST_CODE && resultCode == RESULT_OK) {

Intent intent = new Intent(ZkScreenshotActivity.this, ZkA5AboveScreenshotService.class);

intent.putExtra("code",resultCode);

intent.putExtra("data",data);

ZkUtlis.startService(ZkScreenshotActivity.this,intent);

}

}

Service方法如下：

public class ZkA5AboveScreenshotService extends Service {

private String mTag = "ZkA5AboveScreenshotService";

private int mResultCode;

private Intent mResultData;

private MediaProjection mMediaProjection;

private MediaProjectionManager mMediaProjectionManager;

private int mWidth;

private int mHeight;

private int mDensity;

private ImageReader mImageReader;

private int mImagesProduced;

private int mCount = 0;

@Override

public void onCreate() {

super.onCreate();

mMediaProjectionManager = (MediaProjectionManager) getSystemService(Context.MEDIA_PROJECTION_SERVICE);

}

@Nullable

@Override

public IBinder onBind(Intent intent) {

return null;

}

@Override

public int onStartCommand(Intent intent, int flags, int startId) {

createNotificationChannel();

mResultCode = intent.getIntExtra("code", -1);

mResultData = intent.getParcelableExtra("data");

mMediaProjection = mMediaProjectionManager.getMediaProjection(mResultCode, Objects.requireNonNull(mResultData));

Log.d(mTag, "mMediaProjection created: " + mMediaProjection);

startCaptureReader();

return super.onStartCommand(intent, flags, startId);

}

/**

* startCaptureReader

*/

@SuppressLint("WrongConstant")

private void startCaptureReader() {

WindowManager wm = (WindowManager) getBaseContext().getSystemService(Context.WINDOW_SERVICE);

Display display = wm.getDefaultDisplay();

Point size = new Point();

display.getSize(size);

mWidth = size.x;

mHeight = size.y;

Log.d(mTag,"width:" + mWidth + " height：" + mHeight);

DisplayMetrics metrics = getResources().getDisplayMetrics();

mDensity = metrics.densityDpi;

// start capture reader

mImageReader = ImageReader.newInstance(mWidth, mHeight, 0x01, 2);

mMediaProjection.createVirtualDisplay("screencap", mWidth, mHeight, mDensity, DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR, mImageReader.getSurface(), null, null);

mImageReader.setOnImageAvailableListener(new ImageAvailableListener(), null);

}

/**

* ImageAvailableListener

*/

private class ImageAvailableListener implements ImageReader.OnImageAvailableListener {

@Override

public void onImageAvailable(ImageReader reader) {

try (Image image = reader.acquireLatestImage()) {

if (image != null) {

/**

* 截图结果，会在内容更新自动回调，该方法可以实现连续截图，无需重复启用截图方法

*/

}

image.close();

}

} catch (Exception e) {

e.printStackTrace();

}

}

}

/**

* Create Notification Channel

*/

private void createNotificationChannel() {

//获取一个Notification构造器

Notification.Builder builder = new Notification.Builder(this.getApplicationContext());

//点击后跳转的界面，可以设置跳转数据

Intent nfIntent = new Intent(this, ZkScreenshotActivity.class);

// 设置PendingIntent

builder.setContentIntent(PendingIntent.getActivity(this, 0, nfIntent, 0))

// 设置下拉列表中的图标(大图标)

.setLargeIcon(BitmapFactory.decodeResource(this.getResources(), R.mipmap.ic_launcher))

// 设置下拉列表里的标题

//.setContentTitle("SMI InstantView")

// 设置状态栏内的小图标

.setSmallIcon(R.mipmap.ic_launcher)

// 设置上下文内容

.setContentText("is running......")

// 设置该通知发生的时间

.setWhen(System.currentTimeMillis());

/*以下是对Android 8.0的适配*/

//普通notification适配

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {

builder.setChannelId("notification_id");

}

//前台服务notification适配

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {

NotificationManager notificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);

NotificationChannel channel = new NotificationChannel("notification_id", "notification_name", NotificationManager.IMPORTANCE_LOW);

notificationManager.createNotificationChannel(channel);

}

// 获取构建好的Notification

Notification notification = builder.build();

//设置为默认的声音

notification.defaults = Notification.DEFAULT_SOUND;

startForeground(110, notification);

}

@Override

public void onDestroy() {

super.onDestroy();

Log.d(mTag, "Service onDestroy");

if (mImageReader != null) {

mImageReader.setOnImageAvailableListener(null,null);

mImageReader.close();

mImageReader = null;

}

if (mMediaProjection != null) {

mMediaProjection.stop();

mMediaProjection = null;

}

mMediaProjectionManager = null;

}

下面是将Image转Bitmap

/**

* Image 转 Bitmap

* @param image

*/

private Bitmap imageToBitmap(Image image) {

Image.Plane[] planes = image.getPlanes();

ByteBuffer buffer = planes[0].getBuffer();

int pixelStride = planes[0].getPixelStride();

int rowStride = planes[0].getRowStride();

int rowPadding = rowStride - pixelStride * mWidth;

Bitmap bitmap = Bitmap.createBitmap(mWidth + rowPadding / pixelStride, mHeight, Bitmap.Config.ARGB_8888);

bitmap.copyPixelsFromBuffer(buffer);

return bitmap;

}