I am trying to implement the BluetoothLeGatt Example Project from android into my own app to handle the BLE Services.
BluetoothLeGatt Example Android
The actual state is that i have my own app which has only one activity and i am switching between the other pages with fragments. I would like to implement the android example so i can receive Bluetooth data and save it into a own data class (via an Interface or something like that not sure right now).
The Bluetooth Example is working without any Problems if i am running it on my device. I can also implement the example into my app and use it as "start activity" with the following manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.bb.app">
<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-feature android:name="android.hardware.bluetooth_le" android:required="true"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:debuggable="true">
<activity
android:name=".DeviceScanActivity"
android:configChanges="keyboardHidden|orientation|screenSize"
android:label="@string/app_name">
<!--android:theme="@style/AppTheme.NoActionBar"-->
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".DeviceControlActivity"/>
<activity android:name=".MyActivity"/>
<service android:name=".BluetoothLeService" android:enabled="true"/>
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
</application>
</manifest>But i am not able to Switch between the example activity and my own. I am using a simple Button with a onClickListener to Switch it like that:
buttonChangeActivity = (Button) findViewById(R.id.buttonChangeActivity);
buttonChangeActivity.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(DeviceControlActivity.this, "PRESSED", Toast.LENGTH_SHORT).show();
try{
Intent myIntent = new Intent(DeviceControlActivity.this, MyActivity.class);
DeviceControlActivity.this.startActivity(myIntent);
}catch (Exception e){
Toast.makeText(DeviceControlActivity.this, "ERROR", Toast.LENGTH_SHORT).show();
}
}
});And it is still working. But then it says that the MyActivity class Needs to use the Theme.AppCompat but i am already using it. Here is the whole error code:
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.bb.app/com.example.bb.app.MyActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2325)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5258)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
at android.support.v7.app.AppCompatDelegateImplV7.createSubDecor(AppCompatDelegateImplV7.java:343)
at android.support.v7.app.AppCompatDelegateImplV7.ensureSubDecor(AppCompatDelegateImplV7.java:312)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:277)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at com.example.bb.app.MyActivity.onCreate(MyActivity.java:262)
at android.app.Activity.performCreate(Activity.java:5990)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)I am using a toolbar in my activity and the example Project uses an actionbar so i am pretty sure i Need to "Switch" between the themes while my Project is running but i don't know how to. I've already read some other cases about this behavior:
Any advice how to Switch the themes while the Project is running or where to Change it in my Android Studio?
