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Fixed: Fix NullPointerException when running bell/vibrate on Samsung devices on android 8 and handled deprecated code

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Apparently occurs on only Samsung android 8 devices and there is no fix for vibrator except catching the exception so that app doesn't crash.

https://gitlab.com/juanitobananas/wave-up/-/issues/131
https://github.com/overbound/SonicTimeTwisted/issues/131
https://web.archive.org/web/20201114040257/https://www.badlogicgames.com/forum/viewtopic.php?t=28507

```
java.lang.NullPointerException: Attempt to read from field 'android.os.VibrationEffect com.android.server.VibratorService$Vibration.mEffect' on a null object reference
at android.os.Parcel.readException(Parcel.java:2035)
at android.os.Parcel.readException(Parcel.java:1975)
at android.os.IVibratorService$Stub$Proxy.vibrate(IVibratorService.java:292)
at android.os.SystemVibrator.vibrate(SystemVibrator.java:81)
at android.os.Vibrator.vibrate(Vibrator.java:191)
at android.os.Vibrator.vibrate(Vibrator.java:110)
at android.os.Vibrator.vibrate(Vibrator.java:89)
at com.termux.app.terminal.io.BellHandler$1.run(BellHandler.java:37)
at com.termux.app.terminal.io.BellHandler.doBell(BellHandler.java:55)
at com.termux.app.terminal.TermuxTerminalSessionClient.onBell(TermuxTerminalSessionClient.java:178)
at com.termux.terminal.TerminalSession.onBell(TerminalSession.java:278)
```
This commit is contained in:
agnostic-apollo
2021-08-21 04:22:43 +05:00
parent 10704b1dad
commit 956e20e53d
1 changed files with 17 additions and 1 deletions
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16
app/src/main/java/com/termux/app/terminal/io/BellHandler.java
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@@ -1,15 +1,21 @@
package com.termux.app.terminal.io;
import android.content.Context;
import android.os.Build;
import android.os.Handler;
import android.os.Looper;
import android.os.SystemClock;
import android.os.VibrationEffect;
import android.os.Vibrator;
import com.termux.shared.logger.Logger;
public class BellHandler {
private static BellHandler instance = null;
private static final Object lock = new Object();
private static final String LOG_TAG = "BellHandler";
public static BellHandler getInstance(Context context) {
if (instance == null) {
synchronized (lock) {
@@ -34,8 +40,18 @@ public class BellHandler {
@Override
public void run() {
if (vibrator != null) {
try {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
vibrator.vibrate(VibrationEffect.createOneShot(DURATION, VibrationEffect.DEFAULT_AMPLITUDE));
} else {
vibrator.vibrate(DURATION);
}
} catch (Exception e) {
// Issue on samsung devices on android 8
// java.lang.NullPointerException: Attempt to read from field 'android.os.VibrationEffect com.android.server.VibratorService$Vibration.mEffect' on a null object reference
Logger.logStackTraceWithMessage(LOG_TAG, "Failed to run vibrator", e);
}
}
}
};
}