The BLE is advertising just fine. I can establish a connection with it but I can't read the characteristic value I set here on the initialization of GATT server.
This is the GATT Server setup
#ReactMethod
public void startServer(Callback srvCallBack) {
mBluetoothGattServer = mBluetoothManager.openGattServer(getReactApplicationContext(), mGattServerCallback);
if (mBluetoothGattServer == null) {
srvCallBack.invoke(false);
return;
}
BluetoothGattService gattService = new BluetoothGattService(SERVICE_UUID,
BluetoothGattService.SERVICE_TYPE_PRIMARY);
BluetoothGattCharacteristic mCharacteristics = new BluetoothGattCharacteristic(SERVICE_UUID, 2, 1);
String currentDeviceName = BluetoothAdapter.getDefaultAdapter().getName();
boolean isValAdded = mCharacteristics.setValue(currentDeviceName);
if (isValAdded == false) {
Toast.makeText(getReactApplicationContext(), "Can't add value to characteristics.", Toast.LENGTH_SHORT)
.show();
} else {
Toast.makeText(getReactApplicationContext(), "Value added to characteristics.", Toast.LENGTH_SHORT).show();
}
boolean isCharAdded = gattService.addCharacteristic(mCharacteristics);
if (isCharAdded == false) {
Toast.makeText(getReactApplicationContext(), "Can't add characteristics.", Toast.LENGTH_SHORT).show();
}
boolean isServAdded = mBluetoothGattServer.addService(gattService);
if (isServAdded == true) {
srvCallBack.invoke(true, gattService.getUuid().toString());
return;
}
}
Im not sure if the problem is with the GATT server callback, or is it even needed? Here is my callback
private BluetoothGattServerCallback mGattServerCallback = new BluetoothGattServerCallback() {
#Override
public void onConnectionStateChange(BluetoothDevice device, int status, int newState) {
if (newState == BluetoothProfile.STATE_CONNECTED) {
return;
} else if (newState == BluetoothProfile.STATE_DISCONNECTED) {
return;
}
}
#Override
public void onCharacteristicReadRequest(BluetoothDevice device, int requestId, int offset,
BluetoothGattCharacteristic characteristic) {
if (SERVICE_UUID.equals(characteristic.getUuid())) {
Toast.makeText(getReactApplicationContext(), "Sending device name.", Toast.LENGTH_SHORT).show();
mBluetoothGattServer.sendResponse(device, requestId, BluetoothGatt.GATT_SUCCESS, 0,
characteristic.getValue());
} else {
Toast.makeText(getReactApplicationContext(), "uuid didn't matched.", Toast.LENGTH_SHORT).show();
}
}
};
Related
I have a Magellan scanner/scale. It is connected to my pc through rs232. When i send the command "S11" on ComTestSerial programm, i receive the weight. However, with my vb.net code i cannot receive a response. As a result i get a TimeoutException.
The file that sends the command:
Dim yy() As Byte = System.Text.Encoding.ASCII.GetBytes("S11" & vbLf)
Me.Port.Send(yy)
Dim input = Me.Port.Receive
Return Me.ExtractMeasurement(input)
The file that writes and reads from serialport:
public void Send(byte b)
{
byte[] bytes = new byte[1] { b };
this.Send(bytes);
}
public void Send(byte[] bytes)
{
this.Send(bytes, 0, bytes.Length);
}
public void Send(byte[] bytes, int offset, int count)
{
this._port.Write(bytes, offset, count);
}
public byte[] Receive()
{
int attempts = 1;
Boolean dataReceived;
try
{
while (!this.DataReceived && this._port.BytesToRead == 0 && attempts < 15)
{
System.Threading.Thread.Sleep(100);
attempts++;
}
}
finally
{
dataReceived = this.DataReceived;
this.DataReceived = false;
}
if (!dataReceived && this._port.BytesToRead == 0) throw new TimeoutException();
byte[] bytes = new byte[this._port.BytesToRead];
this._port.Read(bytes, 0, bytes.Length);
return bytes;
}
I can't understand why BytesToRead and BytesToWrite stays 0 after this._port.Write(bytes, offset, count);
Here is the serialportconfig.xml file
<PortName>COM3:</PortName>
<BaudRate>Baud_9600</BaudRate>
<DataBits>Eight</DataBits>
<Parity>None</Parity>
<StopBits>One</StopBits>
<FlowCtrl>CtsRts</FlowCtrl>
Update: i figure out that if i send vbCr instead of vbLf i sometimes get the right response back. But the problem is SOMETIMES. I sometimes get a TimeoutException and sometimes get the response. I am using an adaptor from RS232 to usb. Could this be the problem?
Here is all the code related to the serial:
public class SerialPortAdapter
{
#region Private Members
private System.IO.Ports.SerialPort _port;
private Object _dataReceivedLock = new Object();
private Boolean _dataReceived;
#endregion
#region Constructor/Destructor
public SerialPortAdapter(SerialCnfg config)
{
if (string.IsNullOrEmpty(config.PortName))
{
this._port = new System.IO.Ports.SerialPort();
}
else
{
string portName = config.PortName.TrimEnd(':');
this._port = new System.IO.Ports.SerialPort(portName);
}
this._port.WriteTimeout = 2000;
this._port.ReadTimeout = 2000;
this._port.SetBaudRate(config.BaudRate);
this._port.SetDataBits(config.DataBits);
this._port.SetStopBits(config.StopBits);
this._port.SetHandshake(config.FlowCtrl);
this._port.SetParity(config.Parity);
}
~SerialPortAdapter()
{
this.Close();
this._port = null;
}
#endregion
#region Public Properties
public Boolean IsOpen
{
get { return this._port.IsOpen; }
}
public System.Text.Encoding Encoding
{
get { return this._port.Encoding; }
set { this._port.Encoding = value; }
}
#endregion
#region Public Methods
public void Open()
{
if (this.IsOpen) return;
this.DataReceived = false;
this.AttachPortHandlers();
this._port.Open();
}
public void Close()
{
if (!this.IsOpen) return;
this._port.Close();
this.DetachPortHandlers();
this.DataReceived = false;
}
public void Send(byte b)
{
byte[] bytes = new byte[1] { b };
this.Send(bytes);
}
public void Send(byte[] bytes)
{
this.Send(bytes, 0, bytes.Length);
}
public void Send(byte[] bytes, int offset, int count)
{
this._port.Write(bytes, offset, count);
}
public byte[] Receive()
{
int attempts = 1;
Boolean dataReceived;
try
{
while (!this.DataReceived && this._port.BytesToRead == 0 && attempts < 15)
{
System.Threading.Thread.Sleep(100);
attempts++;
}
}
finally
{
dataReceived = this.DataReceived;
this.DataReceived = false;
}
if (!dataReceived && this._port.BytesToRead == 0) throw new TimeoutException();
byte[] bytes = new byte[this._port.BytesToRead];
this._port.Read(bytes, 0, bytes.Length);
return bytes;
}
#endregion
#region Private Properties
private Boolean DataReceived
{
get
{
lock (this._dataReceivedLock)
{
return this._dataReceived;
}
}
set
{
lock (this._dataReceivedLock)
{
this._dataReceived = value;
}
}
}
#endregion
#region Initialization/Finalization
private void AttachPortHandlers()
{
this._port.DataReceived += new System.IO.Ports.SerialDataReceivedEventHandler(this.OnDataReceived);
}
private void DetachPortHandlers()
{
this._port.DataReceived -= new System.IO.Ports.SerialDataReceivedEventHandler(this.OnDataReceived);
}
#endregion
#region Event Handlers
private void OnDataReceived(Object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
{
this.DataReceived = true;
}
#endregion
}
Based on the code you posted, you are attempting to handle your own timeout exception. SerialPort class has its own built in timeout (ie, ReadTimeout, WriteTimeout) which you set in the constructor. Therefore you do not need the other methods to handle the timeout as it would be redundant. Moreover, stay away from the System.Threading.Sleep method as it can be a huge waste of resources Why is Thread.Sleep so harmful.
I suggest that you refactor your code a bit to get rid of the self imposed Throw TimeoutException.
Here is just a suggestion:
public byte[] Receive()
{
try
{
byte[] bytes = new byte[]{};
while(_port.BytesToRead > 0)
{
bytes = new byte[this._port.BytesToRead];
this._port.Read(bytes, 0, bytes.Length);
}
}
catch (TimeoutException ex)
{
Console.WriteLine(ex.Message);
}
finally
{
this.DataReceived = false;
}
return bytes;
}
It appears that Magellan can work if you resend the command to request the weight(S11). So the solution for me was whenever i have _port.bytesToRead=0 after this._port.Write(bytes, offset, count) , then i resend the command S11. Eventually, it will response the right result.
I have implemented FCM in my app, and I need to pass some data from Firebase service to Activity. I have implemented the following code, which works fine, when the app is in foreground(open). When the app is killed or in background, onMessageReceived method is not called, and the launcher activity is loaded while click on the push notification. Also, when the app is open, push message is blank. Kindly advise what I have done wrong. FYI, from backend, they are sending data payload, not notification.
public class FirebaseMessagingService extends com.google.firebase.messaging.FirebaseMessagingService {
public FirebaseMessagingService() {
}
private static final String TAG = com.google.firebase.messaging.FirebaseMessagingService.class.getSimpleName();
public static String CHAT_PUSH_NOTIFICATION_INTENT = "chatPushNotificationIntent";
private PreferencesManager preferencesManager;
#Override
public void onNewToken(String s) {
super.onNewToken(s);
Log.e("push token >>", s);
String reliableIdentifier = FirebaseInstanceId.getInstance().getId();
FCMPreferencesManager pref = FCMPreferencesManager.getInstance(this);
if (pref != null) {
pref.setStringValue(FCMPreferencesManager.FCM_KEY_VALUE, s);
pref.setStringValue(FCMPreferencesManager.DEVICE_ID, reliableIdentifier);
}
}
#Override
public void onMessageReceived(RemoteMessage remoteMessage) {
try {
preferencesManager = PreferencesManager.getInstance(this);
int userId = preferencesManager.getIntValue(PreferencesManager.LOGIN_USER_ID);
Log.e("onMessage received >>", "inside service");
Log.e("userId >>", userId + "");
if (userId > 0) {
Log.e("remote message >>", remoteMessage.getNotification().getBody() + "");
if (remoteMessage.getData().size() > 0) {
Log.e(TAG, "Data Payload: " + remoteMessage.getData().toString());
try {
JSONObject json = new JSONObject(remoteMessage.getData().toString());
handleDataMessage(json);
} catch (Exception e) {
e.printStackTrace();
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
private void classApprovedNotification(int jobId, String stage) {
if (!Utils.isAppIsInBackground(getApplicationContext())) {
Intent pushNotification = new Intent(Constants.PUSH_NOTIFICATION_INTENT);
pushNotification.putExtra("jobId", jobId);
pushNotification.putExtra("stage", stage);
LocalBroadcastManager.getInstance(this).sendBroadcast(pushNotification);
}
}
private void handleDataMessage(JSONObject json) {
try {
Log.e("total json >> ", json.toString());
JSONObject data = json.optJSONObject("data");
Log.e("data >> ", data.toString());
String title = data.optString("title");
String message = data.optString("message");
Log.e("title >>", title);
Log.e("message >>", message);
localNotification(data, title, message, false);
} catch (Exception e) {
Log.e(TAG, "Json Exception: " + e.getMessage());
}
}
private void localNotification(JSONObject data, String title, String message, boolean isSendBird) {
int type = 0, groupId = 0, classId = 0, jobId = 0;
String stage = "";
int notificationId = (int) System.currentTimeMillis();
int userId = preferencesManager.getIntValue(PreferencesManager.LOGIN_USER_ID);
String className = "", fileName = "";
if (data != null) {
jobId = data.optInt("job_id");
stage = data.optString("stage", "");
}
Log.e("jobId in service >>", jobId + "");
Log.e("stage in service >>", stage);
Intent intent = new Intent(FirebaseMessagingService.this, VendorHomeActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
intent.putExtra("jobId", jobId);
intent.putExtra("stage","stage");
int requestID = (int) System.currentTimeMillis();
final PendingIntent resultPendingIntent =
PendingIntent.getActivity(
this,
requestID,
intent,
PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT
);
String channelId = "";
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder =
new NotificationCompat.Builder(this, channelId)
.setSmallIcon(R.drawable.fyxt_logo)
.setContentTitle(title)
.setContentText(message)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(resultPendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
/* NotificationManagerCompat notificationManager =
NotificationManagerCompat.from(this);*/
// Since android Oreo notification channel is needed.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel channel = new NotificationChannel(channelId,
"Channel human readable title",
NotificationManager.IMPORTANCE_DEFAULT);
notificationManager.createNotificationChannel(channel);
}
notificationManager.notify(notificationId /* ID of notification */, notificationBuilder.build());
try {
PowerManager.WakeLock screenLock = null;
if ((getSystemService(POWER_SERVICE)) != null) {
screenLock = ((PowerManager) getSystemService(POWER_SERVICE)).newWakeLock(
PowerManager.SCREEN_BRIGHT_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP, "OOTUSER:WAKE");
screenLock.acquire(10 * 60 * 1000L /*10 minutes*/);
screenLock.release();
}
} catch (Exception e) {
e.printStackTrace();
}
classApprovedNotification(jobId, stage);
}
}
In my Activity, I have the following code.
private BroadcastReceiver notificationReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
jobIdFromNotification = intent.getIntExtra("jobId", 0);
stageFromNotification = intent.getStringExtra("stage");
Log.e("jobIdFromNotification >>", jobIdFromNotification + "");
Log.e("stageFromNotification >>", stageFromNotification);
prefManager.setIntValue(PreferencesManager.JOB_ID_IN_PREF, jobIdFromNotification);
prefManager.setStringValue(PreferencesManager.JOB_STAGE_IN_PREF, stageFromNotification);
classApprovedViewUpdate();
}
};
private void classApprovedViewUpdate() {
if (jobIdFromNotification > 0) {
fragmentInteractionCallback = (BaseFragment.FragmentInteractionCallback) this;
Log.e("inside push receiver update ", "sfs");
if (stageFromNotification.trim().equalsIgnoreCase(Constants.STAGE_TICKET_APPROVAL)) {
sendActionToActivity(ACTION_CREATE_MAINTENANCE_REQUEST, currentTab, true, fragmentInteractionCallback);
}
}
}
Edit:
data payload:
{
"data": {
"type": 0,
"job_id": 123,
"stage": "STAGE_TICKET_APPROVAL",
}
Im trying to integrate google sign in and took the code from another project that it works on, but for the new app it goes thru the log in but the dialog to allow doesnt show up and instead I get sign in failure with Api Exception 4.
Here is all the applicable code:
//Create the client used to sign in to Google services
mGoogleSignInClient = GoogleSignIn.getClient(this,
new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_GAMES_SIGN_IN)
.requestServerAuthCode(getString(R.string.client_id))
.requestEmail()
.build());
private void signInSilently(){
Log.d(TAG, "signInSilently()");
mGoogleSignInClient.silentSignIn().addOnCompleteListener(this,
new OnCompleteListener<GoogleSignInAccount>() {
#Override
public void onComplete(#NonNull Task<GoogleSignInAccount> task) {
if (task.isSuccessful()) {
Log.d(TAG, "signInSilently(): success");
onConnected(task.getResult());
} else {
Log.d(TAG, "signInSilently(): failure", task.getException());
onDisconnected();
}
}
});
}
private void startSignInIntent() {
startActivityForResult(mGoogleSignInClient.getSignInIntent(), RC_SIGN_IN);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RC_SIGN_IN) {
Task<GoogleSignInAccount> task =
GoogleSignIn.getSignedInAccountFromIntent(data);
try {
GoogleSignInAccount account = task.getResult(ApiException.class);
onConnected(account);
} catch (ApiException apiException) {
String message = apiException.getMessage();
if (message == null || message.isEmpty()) {
message = getString(R.string.signin_other_error);
}
onDisconnected();
new AlertDialog.Builder(this)
.setMessage(message)
.setNeutralButton(android.R.string.ok, null)
.show();
}
}
}
private void onDisconnected() {
Log.d(TAG, "onDisconnected()");
mPlayersClient = null;
// Show sign-in button on main menu
if(game.user != null) {
game.user.setDisplayName(null);
game.user.setPlayerID(null);
}
}
private void onConnected(final GoogleSignInAccount googleSignInAccount) {
Log.d(TAG, "onConnected(): connected to Google APIs");
GamesClient gamesClient = Games.getGamesClient(AndroidLauncher.this, googleSignInAccount);
View view = ((AndroidGraphics) Gdx.graphics).getView();
gamesClient.setViewForPopups(view);
gamesClient.setGravityForPopups(Gravity.TOP | Gravity.CENTER_HORIZONTAL);
mPlayersClient = Games.getPlayersClient(this, googleSignInAccount);
// Set the greeting appropriately on main menu
mPlayersClient.getCurrentPlayer()
.addOnCompleteListener(new OnCompleteListener<Player>() {
#Override
public void onComplete(#NonNull Task<Player> task) {
String displayName;
if (task.isSuccessful()) {
user = new User();
user.setDisplayName(task.getResult().getDisplayName());
user.setPlayerID(task.getResult().getPlayerId());
game.user = user;
firebaseAuthWithPlayGames(googleSignInAccount);
} else {
Exception e = task.getException();
handleException(e, getString(R.string.players_exception));
displayName = "???";
}
}
});
}
private void handleException(Exception e, String details) {
int status = 0;
if (e instanceof ApiException) {
ApiException apiException = (ApiException) e;
status = apiException.getStatusCode();
}
String message = getString(R.string.status_exception_error, details, status, e);
new AlertDialog.Builder(AndroidLauncher.this)
.setMessage(message)
.setNeutralButton(android.R.string.ok, null)
.show();
}
I have a RecyclerView and each ViewHolder of the RecyclerView has a MediaPlayer object. I am using a TextureView to hold the MediaPlayer objects, the issue is that when i am scrolling down it is very laggy. Why is this the case? I believe I am properly deallocating the MediaPlayer objects when the surface is destroyed.
For a reference I am using the following TextureView implementation taken from this repo: TextureVideoView
TextureVideoView.java
public class TextureVideoView extends TextureView implements TextureView.SurfaceTextureListener {
// Indicate if logging is on
public static final boolean LOG_ON = true;
// Log tag
private static final String TAG = TextureVideoView.class.getName();
private MediaPlayer mMediaPlayer;
private float mVideoHeight;
private float mVideoWidth;
private boolean mIsDataSourceSet;
private boolean mIsViewAvailable;
private boolean mIsVideoPrepared;
private boolean mIsPlayCalled;
private ScaleType mScaleType;
private State mState;
public enum ScaleType {
CENTER_CROP, TOP, BOTTOM
}
public enum State {
UNINITIALIZED, PLAY, STOP, PAUSE, END
}
public TextureVideoView(Context context) {
super(context);
initView();
}
public TextureVideoView(Context context, AttributeSet attrs) {
super(context, attrs);
initView();
}
public TextureVideoView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
initView();
}
private void initView() {
if (!isInEditMode()) {
initPlayer();
setScaleType(ScaleType.CENTER_CROP);
setSurfaceTextureListener(this);
}
}
public void setScaleType(ScaleType scaleType) {
mScaleType = scaleType;
}
private void updateTextureViewSize() {
float viewWidth = getWidth();
float viewHeight = getHeight();
float scaleX = 1.0f;
float scaleY = 1.0f;
if (mVideoWidth > viewWidth && mVideoHeight > viewHeight) {
scaleX = mVideoWidth / viewWidth;
scaleY = mVideoHeight / viewHeight;
} else if (mVideoWidth < viewWidth && mVideoHeight < viewHeight) {
scaleY = viewWidth / mVideoWidth;
scaleX = viewHeight / mVideoHeight;
} else if (viewWidth > mVideoWidth) {
scaleY = (viewWidth / mVideoWidth) / (viewHeight / mVideoHeight);
} else if (viewHeight > mVideoHeight) {
scaleX = (viewHeight / mVideoHeight) / (viewWidth / mVideoWidth);
}
// Calculate pivot points, in our case crop from center
int pivotPointX;
int pivotPointY;
switch (mScaleType) {
case TOP:
pivotPointX = 0;
pivotPointY = 0;
break;
case BOTTOM:
pivotPointX = (int) (viewWidth);
pivotPointY = (int) (viewHeight);
break;
case CENTER_CROP:
pivotPointX = (int) (viewWidth / 2);
pivotPointY = (int) (viewHeight / 2);
break;
default:
pivotPointX = (int) (viewWidth / 2);
pivotPointY = (int) (viewHeight / 2);
break;
}
Matrix matrix = new Matrix();
matrix.setScale(scaleX, scaleY, pivotPointX, pivotPointY);
setTransform(matrix);
}
private void initPlayer() {
if (mMediaPlayer == null) {
mMediaPlayer = new MediaPlayer();
} else {
mMediaPlayer.reset();
}
mIsVideoPrepared = false;
mIsPlayCalled = false;
mState = State.UNINITIALIZED;
}
/**
* #see android.media.MediaPlayer#setDataSource(String)
*/
public void setDataSource(final String path) {
initPlayer();
((Activity) getContext()).runOnUiThread(new Runnable() {
#Override
public void run() {
try {
mMediaPlayer.setDataSource(path);
} catch (IOException e) {
e.printStackTrace();
}
}
});
mIsDataSourceSet = true;
prepare();
}
/**
* #see android.media.MediaPlayer#setDataSource(android.content.Context, android.net.Uri)
*/
public void setDataSource(Context context, Uri uri) {
initPlayer();
try {
mMediaPlayer.setDataSource(context, uri);
mIsDataSourceSet = true;
//prepare();
mMediaPlayer.setWakeMode(context.getApplicationContext(), PowerManager.PARTIAL_WAKE_LOCK);
} catch (IOException e) {
Log.d(TAG, e.getMessage());
}
}
/**
* #see android.media.MediaPlayer#setDataSource(java.io.FileDescriptor)
*/
public void setDataSource(AssetFileDescriptor afd) {
initPlayer();
try {
long startOffset = afd.getStartOffset();
long length = afd.getLength();
mMediaPlayer.setDataSource(afd.getFileDescriptor(), startOffset, length);
mIsDataSourceSet = true;
prepare();
} catch (IOException e) {
Log.d(TAG, e.getMessage());
}
}
private void prepare() {
try {
// Adjust the size of the MediaPlayer based on the Screen Resolution
mMediaPlayer.setOnVideoSizeChangedListener(
new MediaPlayer.OnVideoSizeChangedListener() {
#Override
public void onVideoSizeChanged(MediaPlayer mp, int width, int height) {
DisplayMetrics metrics = getContext().getResources().getDisplayMetrics();
mVideoWidth = width * metrics.density;
mVideoHeight = height * metrics.density;
updateTextureViewSize();
}
}
);
// Add a completion listener for when video ends and pass it to the listener
mMediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
mState = State.END;
if (mListener != null) {
mListener.onVideoEnd();
}
}
});
// don't forget to call MediaPlayer.prepareAsync() method when you use constructor for
// creating MediaPlayer
mMediaPlayer.prepareAsync();
// Play video when the media source is ready for playback.
mMediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mediaPlayer) {
mIsVideoPrepared = true;
if (mIsPlayCalled && mIsViewAvailable) {
log("Player is prepared and play() was called.");
play();
}
if (mListener != null) {
mListener.onVideoPrepared();
}
}
});
} catch (IllegalArgumentException e) {
Log.d(TAG, "IllegalArgumentException");
Log.d(TAG, e.getMessage());
} catch (SecurityException e) {
Log.d(TAG, "SecurityException");
Log.d(TAG, e.getMessage());
} catch (IllegalStateException e) {
Log.d(TAG, "IllegalStateException");
Log.d(TAG, e.toString());
}
}
/**
* Play or resume video. Video will be played as soon as view is available and media player is
* prepared.
* <p/>
* If video is stopped or ended and play() method was called, video will start over.
*/
public void play() {
if (!mIsDataSourceSet) {
log("play() was called but data source was not set.");
return;
}
mIsPlayCalled = true;
if (!mIsVideoPrepared) {
log("play() was called but video is not prepared yet, waiting.");
return;
}
if (!mIsViewAvailable) {
log("play() was called but view is not available yet, waiting.");
return;
}
if (mState == State.PLAY) {
log("play() was called but video is already playing.");
return;
}
if (mState == State.PAUSE) {
log("play() was called but video is paused, resuming.");
mState = State.PLAY;
mMediaPlayer.start();
return;
}
if (mState == State.END || mState == State.STOP) {
log("play() was called but video already ended, starting over.");
mState = State.PLAY;
mMediaPlayer.seekTo(0);
mMediaPlayer.start();
return;
}
mState = State.PLAY;
mMediaPlayer.start();
}
/**
* Pause video. If video is already paused, stopped or ended nothing will happen.
*/
public void pause() {
if (mState == State.PAUSE) {
log("pause() was called but video already paused.");
return;
}
if (mState == State.STOP) {
log("pause() was called but video already stopped.");
return;
}
if (mState == State.END) {
log("pause() was called but video already ended.");
return;
}
mState = State.PAUSE;
if (mMediaPlayer.isPlaying()) {
mMediaPlayer.pause();
}
}
/**
* Stop video (pause and seek to beginning). If video is already stopped or ended nothing will
* happen.
*/
public void stop() {
if (mState == State.UNINITIALIZED) {
log("stop() was called but video already released.");
}
if (mState == State.STOP) {
log("stop() was called but video already stopped.");
return;
}
if (mState == State.END) {
log("stop() was called but video already ended.");
return;
}
mState = State.STOP;
if (mMediaPlayer.isPlaying()) {
Log.d(TAG, "MediaPlayer is playing");
mMediaPlayer.pause();
mMediaPlayer.seekTo(0);
mMediaPlayer.stop();
}
}
/**
* Reset the video (only if the video has been stopped). This will reset the mediaplayer, else
* nothing happens
*/
public void reset() {
if (mState == State.PLAY) {
log("reset() was called but video is currently playing.");
return;
}
if (mState == State.PAUSE) {
log("reset() was called but video is currently paused.");
return;
}
if (mState == State.STOP) {
mMediaPlayer.reset();
}
}
public void release() {
if (mState == State.PLAY) {
log("release() was called but video is currently playing.");
return;
}
if (mState == State.PAUSE) {
log("release() was called but video is currently paused.");
return;
}
if (mState == State.STOP) {
log("release() was called but video is currently stopped.");
return;
}
mMediaPlayer.release();
mMediaPlayer = null;
mState = State.UNINITIALIZED;
}
/**
* #see android.media.MediaPlayer#setLooping(boolean)
*/
public void setLooping(boolean looping) {
Log.d(TAG, "Looping");
mMediaPlayer.setLooping(looping);
}
/**
* #see android.media.MediaPlayer#seekTo(int)
*/
public void seekTo(int milliseconds) {
mMediaPlayer.seekTo(milliseconds);
}
/**
* #see android.media.MediaPlayer#getDuration()
*/
public int getDuration() {
return mMediaPlayer.getDuration();
}
static void log(String message) {
if (LOG_ON) {
Log.d(TAG, message);
}
}
private MediaPlayerListener mListener;
/**
* Listener trigger 'onVideoPrepared' and `onVideoEnd` events
*/
public void setListener(MediaPlayerListener listener) {
mListener = listener;
}
public interface MediaPlayerListener {
void onVideoPrepared();
void onVideoEnd();
}
#Override
public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int width, int height) {
Surface surface = new Surface(surfaceTexture);
mMediaPlayer.setSurface(surface);
mIsViewAvailable = true;
if (mIsDataSourceSet && mIsPlayCalled && mIsVideoPrepared) {
play();
}
}
#Override
public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {
}
#Override
public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
// Deallocate MediaPlayer
if (mMediaPlayer != null) {
mMediaPlayer.pause();
mMediaPlayer.stop();
mMediaPlayer.reset();
mMediaPlayer.release();
mMediaPlayer = null;
}
return false;
}
#Override
public void onSurfaceTextureUpdated(SurfaceTexture surface) {
}
}
When I get an asset downloaded I serve it inside my adapter like so:
final TextureVideoView videoView = holder.videoview;
videoView.setDataSource(path);
videoView.setLooping(true);
videoView.setScaleType(TextureVideoView.ScaleType.CENTER_CROP);
videoView.play();
The issue is that when I am scrolling it is really laggy, how can I fix this? How can I make a RecyclerView like Vine where the TextureView pauses unless the view is mostly visible.
Looking for a very thorough answer to this question and good optimized implementation.
What's the simplest way to use MiniProfiler's database profiling with NHibernate? In order for the profiler to work, I need to wrap the DbConnection that NHibernate uses in a ProfiledDbConnection.
I'm not too familiar with the internals of NHibernate, so I don't know where all the extensibility points are. (I noticed that an NHibernate ISession has a Connection property, but it is read-only.)
[UPDATE] Please see the following links for a version of that uses RealProxy to proxy the SqlCommand - batching is now supported
blog http://blog.fearofaflatplanet.me.uk/mvcminiprofiler-and-nhibernate-take-2
gist https://gist.github.com/1110153
I've left the original answer unaltered as it was accepted. [/UPDATE]
I've managed to partially get this to work by implementing a Profiled Client Driver (example for Sql Server 2008 below) - this works for simple examples, however I haven't yet found a solution for NH batching (which attempts to cast the command back to SqlCommand)
public class ProfiledSql2008ClientDriver : Sql2008ClientDriver
{
public override IDbCommand CreateCommand()
{
return new ProfiledDbCommand(
base.CreateCommand() as DbCommand,
null,
MiniProfiler.Current);
}
public override IDbConnection CreateConnection()
{
return ProfiledDbConnection.Get(
base.CreateConnection() as DbConnection,
MiniProfiler.Current);
}
}
I extended Roberts answer above to work with NHibernate batching. There is a lot of code here so it can possibly be shortened, some of it based on the nHibernate source for the client driver.
<property name="connection.driver_class">YoureOnTime.Data.ProfiledSqlClientDriver, YoureOnTime.Common</property>
public class ProfiledSqlClientDriver : DriverBase, IEmbeddedBatcherFactoryProvider
{
public override IDbConnection CreateConnection()
{
return new ProfiledSqlDbConnection(
new SqlConnection(),
MiniProfiler.Current);
}
public override IDbCommand CreateCommand()
{
return new ProfiledSqlDbCommand(
new SqlCommand(),
null,
MiniProfiler.Current);
}
public override bool UseNamedPrefixInSql
{
get { return true; }
}
public override bool UseNamedPrefixInParameter
{
get { return true; }
}
public override string NamedPrefix
{
get { return "#"; }
}
public override bool SupportsMultipleOpenReaders
{
get { return false; }
}
public static void SetParameterSizes(IDataParameterCollection parameters, SqlType[] parameterTypes)
{
for (int i = 0; i < parameters.Count; i++)
{
SetVariableLengthParameterSize((IDbDataParameter)parameters[i], parameterTypes[i]);
}
}
private const int MaxAnsiStringSize = 8000;
private const int MaxBinarySize = MaxAnsiStringSize;
private const int MaxStringSize = MaxAnsiStringSize / 2;
private const int MaxBinaryBlobSize = int.MaxValue;
private const int MaxStringClobSize = MaxBinaryBlobSize / 2;
private const byte MaxPrecision = 28;
private const byte MaxScale = 5;
private const byte MaxDateTime2 = 8;
private const byte MaxDateTimeOffset = 10;
private static void SetDefaultParameterSize(IDbDataParameter dbParam, SqlType sqlType)
{
switch (dbParam.DbType)
{
case DbType.AnsiString:
case DbType.AnsiStringFixedLength:
dbParam.Size = MaxAnsiStringSize;
break;
case DbType.Binary:
if (sqlType is BinaryBlobSqlType)
{
dbParam.Size = MaxBinaryBlobSize;
}
else
{
dbParam.Size = MaxBinarySize;
}
break;
case DbType.Decimal:
dbParam.Precision = MaxPrecision;
dbParam.Scale = MaxScale;
break;
case DbType.String:
case DbType.StringFixedLength:
dbParam.Size = IsText(dbParam, sqlType) ? MaxStringClobSize : MaxStringSize;
break;
case DbType.DateTime2:
dbParam.Size = MaxDateTime2;
break;
case DbType.DateTimeOffset:
dbParam.Size = MaxDateTimeOffset;
break;
}
}
private static bool IsText(IDbDataParameter dbParam, SqlType sqlType)
{
return (sqlType is StringClobSqlType) || (sqlType.LengthDefined && sqlType.Length > MsSql2000Dialect.MaxSizeForLengthLimitedStrings &&
(DbType.String == dbParam.DbType || DbType.StringFixedLength == dbParam.DbType));
}
private static void SetVariableLengthParameterSize(IDbDataParameter dbParam, SqlType sqlType)
{
SetDefaultParameterSize(dbParam, sqlType);
// Override the defaults using data from SqlType.
if (sqlType.LengthDefined && !IsText(dbParam, sqlType))
{
dbParam.Size = sqlType.Length;
}
if (sqlType.PrecisionDefined)
{
dbParam.Precision = sqlType.Precision;
dbParam.Scale = sqlType.Scale;
}
}
public override IDbCommand GenerateCommand(CommandType type, SqlString sqlString, SqlType[] parameterTypes)
{
IDbCommand command = base.GenerateCommand(type, sqlString, parameterTypes);
//if (IsPrepareSqlEnabled)
{
SetParameterSizes(command.Parameters, parameterTypes);
}
return command;
}
public override bool SupportsMultipleQueries
{
get { return true; }
}
#region IEmbeddedBatcherFactoryProvider Members
System.Type IEmbeddedBatcherFactoryProvider.BatcherFactoryClass
{
get { return typeof(ProfiledSqlClientBatchingBatcherFactory); }
}
#endregion
}
public class ProfiledSqlClientBatchingBatcher : AbstractBatcher
{
private int batchSize;
private int totalExpectedRowsAffected;
private SqlClientSqlCommandSet currentBatch;
private StringBuilder currentBatchCommandsLog;
private readonly int defaultTimeout;
public ProfiledSqlClientBatchingBatcher(ConnectionManager connectionManager, IInterceptor interceptor)
: base(connectionManager, interceptor)
{
batchSize = Factory.Settings.AdoBatchSize;
defaultTimeout = PropertiesHelper.GetInt32(NHibernate.Cfg.Environment.CommandTimeout, NHibernate.Cfg.Environment.Properties, -1);
currentBatch = CreateConfiguredBatch();
//we always create this, because we need to deal with a scenario in which
//the user change the logging configuration at runtime. Trying to put this
//behind an if(log.IsDebugEnabled) will cause a null reference exception
//at that point.
currentBatchCommandsLog = new StringBuilder().AppendLine("Batch commands:");
}
public override int BatchSize
{
get { return batchSize; }
set { batchSize = value; }
}
protected override int CountOfStatementsInCurrentBatch
{
get { return currentBatch.CountOfCommands; }
}
public override void AddToBatch(IExpectation expectation)
{
totalExpectedRowsAffected += expectation.ExpectedRowCount;
IDbCommand batchUpdate = CurrentCommand;
string lineWithParameters = null;
var sqlStatementLogger = Factory.Settings.SqlStatementLogger;
if (sqlStatementLogger.IsDebugEnabled || log.IsDebugEnabled)
{
lineWithParameters = sqlStatementLogger.GetCommandLineWithParameters(batchUpdate);
var formatStyle = sqlStatementLogger.DetermineActualStyle(FormatStyle.Basic);
lineWithParameters = formatStyle.Formatter.Format(lineWithParameters);
currentBatchCommandsLog.Append("command ")
.Append(currentBatch.CountOfCommands)
.Append(":")
.AppendLine(lineWithParameters);
}
if (log.IsDebugEnabled)
{
log.Debug("Adding to batch:" + lineWithParameters);
}
currentBatch.Append(((ProfiledSqlDbCommand)batchUpdate).Command);
if (currentBatch.CountOfCommands >= batchSize)
{
ExecuteBatchWithTiming(batchUpdate);
}
}
protected void ProfiledPrepare(IDbCommand cmd)
{
try
{
IDbConnection sessionConnection = ConnectionManager.GetConnection();
if (cmd.Connection != null)
{
// make sure the commands connection is the same as the Sessions connection
// these can be different when the session is disconnected and then reconnected
if (cmd.Connection != sessionConnection)
{
cmd.Connection = sessionConnection;
}
}
else
{
cmd.Connection = (sessionConnection as ProfiledSqlDbConnection).Connection;
}
ProfiledSqlDbTransaction trans = (ProfiledSqlDbTransaction)typeof(NHibernate.Transaction.AdoTransaction).InvokeMember("trans", System.Reflection.BindingFlags.GetField | System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance, null, ConnectionManager.Transaction, null);
if (trans != null)
cmd.Transaction = trans.Transaction;
Factory.ConnectionProvider.Driver.PrepareCommand(cmd);
}
catch (InvalidOperationException ioe)
{
throw new ADOException("While preparing " + cmd.CommandText + " an error occurred", ioe);
}
}
protected override void DoExecuteBatch(IDbCommand ps)
{
log.DebugFormat("Executing batch");
CheckReaders();
ProfiledPrepare(currentBatch.BatchCommand);
if (Factory.Settings.SqlStatementLogger.IsDebugEnabled)
{
Factory.Settings.SqlStatementLogger.LogBatchCommand(currentBatchCommandsLog.ToString());
currentBatchCommandsLog = new StringBuilder().AppendLine("Batch commands:");
}
int rowsAffected;
try
{
rowsAffected = currentBatch.ExecuteNonQuery();
}
catch (DbException e)
{
throw ADOExceptionHelper.Convert(Factory.SQLExceptionConverter, e, "could not execute batch command.");
}
Expectations.VerifyOutcomeBatched(totalExpectedRowsAffected, rowsAffected);
currentBatch.Dispose();
totalExpectedRowsAffected = 0;
currentBatch = CreateConfiguredBatch();
}
private SqlClientSqlCommandSet CreateConfiguredBatch()
{
var result = new SqlClientSqlCommandSet();
if (defaultTimeout > 0)
{
try
{
result.CommandTimeout = defaultTimeout;
}
catch (Exception e)
{
if (log.IsWarnEnabled)
{
log.Warn(e.ToString());
}
}
}
return result;
}
}
public class ProfiledSqlClientBatchingBatcherFactory : IBatcherFactory
{
public virtual IBatcher CreateBatcher(ConnectionManager connectionManager, IInterceptor interceptor)
{
return new ProfiledSqlClientBatchingBatcher(connectionManager, interceptor);
}
}
public class ProfiledSqlDbCommand : ProfiledDbCommand
{
public ProfiledSqlDbCommand(SqlCommand cmd, SqlConnection conn, MiniProfiler profiler)
: base(cmd, conn, profiler)
{
Command = cmd;
}
public SqlCommand Command { get; set; }
private DbTransaction _trans;
protected override DbTransaction DbTransaction
{
get { return _trans; }
set
{
this._trans = value;
ProfiledSqlDbTransaction awesomeTran = value as ProfiledSqlDbTransaction;
Command.Transaction = awesomeTran == null ? (SqlTransaction)value : awesomeTran.Transaction;
}
}
}
public class ProfiledSqlDbConnection : ProfiledDbConnection
{
public ProfiledSqlDbConnection(SqlConnection connection, MiniProfiler profiler)
: base(connection, profiler)
{
Connection = connection;
}
public SqlConnection Connection { get; set; }
protected override DbTransaction BeginDbTransaction(System.Data.IsolationLevel isolationLevel)
{
return new ProfiledSqlDbTransaction(Connection.BeginTransaction(isolationLevel), this);
}
}
public class ProfiledSqlDbTransaction : ProfiledDbTransaction
{
public ProfiledSqlDbTransaction(SqlTransaction transaction, ProfiledDbConnection connection)
: base(transaction, connection)
{
Transaction = transaction;
}
public SqlTransaction Transaction { get; set; }
}
Try implementing NHibernate.Connection.IConnectionProvider (you could just inherit DriverConnectionProvider), in GetConnection() wrap the IDbConnection as you need.
Plug your connection provider using the Environment.ConnectionProvider key in your config properties.
If anyone is interested I have done an integration using a custom Log4net appender instead. This way I feel safe that I don't mess with the Connection object.
The rough outline is something along these lines: NHibernate emits the sqlstrings as debug statements and the appender configured in log4net.xml calls Start and Dispose on the MiniProfiler.