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Move setScanMode to background thread to avoid ANR

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Test: atest
Bug: 397951829
Flag: EXEMPT small fix
Change-Id: I6450fc9cef1cfea3bb940e5d37a552df1f75dd23
This commit is contained in:
Yiyi Shen
2025-03-17 16:18:32 +08:00
parent b96eb497da
commit c79e14a2fd
1 changed files with 16 additions and 9 deletions
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25
src/com/android/settings/bluetooth/AlwaysDiscoverable.java
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@@ -24,6 +24,8 @@ import android.content.IntentFilter;
import androidx.annotation.VisibleForTesting;
import com.android.settingslib.utils.ThreadUtils;
/** Helper class, intended to be used by an Activity, to keep the local Bluetooth adapter in
* discoverable mode indefinitely. By default setting the scan mode to
* BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE will time out after some time, but some
@@ -55,10 +57,12 @@ public class AlwaysDiscoverable extends BroadcastReceiver {
mContext.registerReceiver(this, mIntentFilter,
Context.RECEIVER_EXPORTED_UNAUDITED);
mStarted = true;
if (mBluetoothAdapter.getScanMode()
!= BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE) {
mBluetoothAdapter.setScanMode(BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE);
}
ThreadUtils.postOnBackgroundThread(() -> {
if (mBluetoothAdapter.getScanMode()
!= BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE) {
mBluetoothAdapter.setScanMode(BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE);
}
});
}
public void stop() {
@@ -67,7 +71,8 @@ public class AlwaysDiscoverable extends BroadcastReceiver {
}
mContext.unregisterReceiver(this);
mStarted = false;
mBluetoothAdapter.setScanMode(BluetoothAdapter.SCAN_MODE_CONNECTABLE);
ThreadUtils.postOnBackgroundThread(
() -> mBluetoothAdapter.setScanMode(BluetoothAdapter.SCAN_MODE_CONNECTABLE));
}
@Override
@@ -76,9 +81,11 @@ public class AlwaysDiscoverable extends BroadcastReceiver {
if (action != BluetoothAdapter.ACTION_SCAN_MODE_CHANGED) {
return;
}
if (mBluetoothAdapter.getScanMode()
!= BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE) {
mBluetoothAdapter.setScanMode(BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE);
}
ThreadUtils.postOnBackgroundThread(() -> {
if (mBluetoothAdapter.getScanMode()
!= BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE) {
mBluetoothAdapter.setScanMode(BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE);
}
});
}
}