Blescanner Crash ⇐ Android

[Anonymous]

Мне нужно найти устройство BLE возле моего смартфона. Так что это мой код: < /p>
package it.smain;

import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothManager;
import android.content.Context;
import android.content.pm.PackageManager;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import android.Manifest;
import android.widget.Toast;

import it.eresult.silvermountain.databinding.ActivityFindDeviceBinding;

public class FindDeviceActivity extends AppCompatActivity {
private ActivityFindDeviceBinding binding;
private BluetoothAdapter mBluetoothAdapter;
private boolean mScanning;
private Handler mHandler;
private final static int REQUEST_ENABLE_BT = 1;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
binding = ActivityFindDeviceBinding.inflate(getLayoutInflater());
View view = binding.getRoot();
setContentView(view);
if (ContextCompat.checkSelfPermission( this, Manifest.permission.ACCESS_COARSE_LOCATION ) != PackageManager.PERMISSION_GRANTED ||
ActivityCompat.checkSelfPermission(this, Manifest.permission.BLUETOOTH_CONNECT) != PackageManager.PERMISSION_GRANTED ||
ContextCompat.checkSelfPermission( this, Manifest.permission.BLUETOOTH_SCAN ) != PackageManager.PERMISSION_GRANTED)
{
ActivityCompat.requestPermissions(
this,
new String [] { Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.BLUETOOTH_CONNECT, Manifest.permission.BLUETOOTH_SCAN },1
);
}
int permissionCheck = ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION);

if (permissionCheck != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(
this,
new String [] { android.Manifest.permission.ACCESS_FINE_LOCATION,
Manifest.permission.ACCESS_COARSE_LOCATION,
Manifest.permission.BLUETOOTH_CONNECT,
Manifest.permission.BLUETOOTH_SCAN },1
);
}

if(areLocationServicesEnabled(this)) {
mHandler = new Handler();

if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE)) {
Toast.makeText(this, "BLE Non supportato", Toast.LENGTH_SHORT).show();
finish();
}

final BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
mBluetoothAdapter = bluetoothManager.getAdapter();

scanLeDevice(true);
}

}

public boolean areLocationServicesEnabled(Context context) {
LocationManager locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
try {
return locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER) ||
locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
} catch (Exception e) {
e.printStackTrace();
return false;
}
}

private void scanLeDevice(final boolean enable) {
if (enable) {
mScanning = true;
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.BLUETOOTH_SCAN) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
mBluetoothAdapter.startLeScan(mLeScanCallback);
} else {
mScanning = false;
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.BLUETOOTH_SCAN) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
mBluetoothAdapter.stopLeScan(mLeScanCallback);
}
}

// Device scan callback.
private BluetoothAdapter.LeScanCallback mLeScanCallback =
new BluetoothAdapter.LeScanCallback() {
@Override
public void onLeScan(final BluetoothDevice device, int rssi,
byte[] scanRecord) {
runOnUiThread(new Runnable() {
@Override
public void run() {
if (ActivityCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.BLUETOOTH_CONNECT) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
Log.i("NEW DEVICE", device.getName());
}
});
}
};
}
< /code>
Но когда активность открыта и выполняется следующая строка: < /p>
scanLeDevice(true);
< /code>
Приложение попало в сбою со следующей ошибкой: < /p>
Activity top resumed state loss timeout for ActivityRecord{1e4b231 u0 it.eresult.silvermountain/.FindDeviceActivity t70 f} isExiting}
2025-02-10 11:49:39.181 8126-8126 .silvermountai pid-8126 W Redefining intrinsic method java.lang.Thread java.lang.Thread.currentThread(). This may cause the unexpected use of the original definition of java.lang.Thread java.lang.Thread.currentThread()in methods that have already been compiled.
2025-02-10 11:49:39.181 8126-8126 .silvermountai pid-8126 W Redefining intrinsic method boolean java.lang.Thread.interrupted(). This may cause the unexpected use of the original definition of boolean java.lang.Thread.interrupted()in methods that have already been compiled.
---------------------------- PROCESS STARTED (8126) for package it.eresult.silvermountain ----------------------------
2025-02-10 11:49:39.211 8126-8126 Compatibil...geReporter pid-8126 D Compat change id reported: 171979766; UID 10216; state: ENABLED
2025-02-10 11:49:39.225 8126-8126 ActivityThread it.eresult.silvermountain W Application it.eresult.silvermountain is waiting for the debugger on port 8100...
2025-02-10 11:49:39.226 8126-8126 System.out it.eresult.silvermountain I Sending WAIT chunk
2025-02-10 11:49:39.260 1543-1732 WindowManager system_server W Failed to deliver inset state change to w=Window{bfa4fbd u0 it.eresult.silvermountain/it.eresult.silvermountain.FindDeviceActivity EXITING}
android.os.DeadObjectException
at android.os.BinderProxy.transactNative(Native Method)
at android.os.BinderProxy.transact(BinderProxy.java:571)
at android.view.IWindow$Stub$Proxy.insetsControlChanged(IWindow.java:687)
at com.android.server.wm.WindowState.notifyInsetsControlChanged(WindowState.java:4051)
at com.android.server.wm.InsetsStateController.lambda$notifyPendingInsetsControlChanged$6$InsetsStateController(InsetsStateController.java:552)
at com.android.server.wm.InsetsStateController$$ExternalSyntheticLambda1.run(Unknown Source:2)
at com.android.server.wm.WindowAnimator.executeAfterPrepareSurfacesRunnables(WindowAnimator.java:345)
at com.android.server.wm.WindowAnimator.animate(WindowAnimator.java:226)
at com.android.server.wm.WindowAnimator.lambda$new$1$WindowAnimator(WindowAnimator.java:106)
at com.android.server.wm.WindowAnimator$$ExternalSyntheticLambda0.doFrame(Unknown Source:2)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1118)
at android.view.Choreographer.doCallbacks(Choreographer.java:926)
at android.view.Choreographer.doFrame(Choreographer.java:854)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1105)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loopOnce(Looper.java:201)
at android.os.Looper.loop(Looper.java:288)
at android.os.HandlerThread.run(HandlerThread.java:67)
at com.android.server.ServiceThread.run(ServiceThread.java:44)


Подробнее здесь: https://stackoverflow.com/questions/794 ... nner-crash