CODEWITHSUNDEEP
androidbluetooth
Sidle Ciel
Sidle Ciel

Reputation: 39

Android get restarted once it is connected or disconnected to bluetooth device

Android mobile app always get restarted once it is connected or disconnected to bluetooth device. what something else i need to comment ? tell me.

Upvotes: 3

Views: 3638

Answers (2)

g_codex
g_codex

Reputation: 35

Resurrecting an old topic, there are some bluetooth devices that - for some unapparent reason - also make other configuration changes besides the keyboard ones. In this case, try to add in your Manifest, in the desired activity, the line:

android:configChanges="keyboard|keyboardHidden|navigation"

That might be enough!

I also recommend taking a look at https://developer.android.com/guide/topics/manifest/activity-element#config, in the subtopic android:configChanges. Listed there are all the configuration changes a device can make.

Upvotes: 1

iszlavik
iszlavik

Reputation: 141

This is by design. Android restarts (recreates) activity in case of any configuration change event to ensure app adapt to the new situation:
Handling Runtime Changes - API Guide
Bluetooth connect/disconnect is similar configuration change event like orientation change, hard or soft keyboard change.
You can avoid app restart by handling configuration change event in your app:

add android:configChanges = "keyboard|keyboardHidden" attribute into your AndroidManifest.xml: 

<activity android:name=".MyActivity"
    android:configChanges="keyboard|keyboardHidden"
    android:label="@string/app_name">

and implement onConfigurationChanged() method in your activity:

@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);
}

See excellent answers here:

Upvotes: 14

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