Carlos Santana created CB-10472:
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Summary: NullPointerException: Attempt to invoke virtual method
'android.os.Bundle org.apache.cordova.PluginManager.onSaveInstanceState
Key: CB-10472
URL: https://issues.apache.org/jira/browse/CB-10472
Project: Apache Cordova
Issue Type: Bug
Components: Android
Affects Versions: 5.1.0
Environment: cordova-android 5.1.0
Reporter: Carlos Santana
pluginManager not being check for null before using it in CordovaInterfaceImpl
01-28 14:24:10.396 27684-27684/io.cordova.hellocordova E/AndroidRuntime﹕ FATAL
EXCEPTION: main
Process: io.cordova.hellocordova, PID: 27684
java.lang.NullPointerException: Attempt to invoke virtual method
'android.os.Bundle org.apache.cordova.PluginManager.onSaveInstanceState()' on a
null object reference
at
org.apache.cordova.CordovaInterfaceImpl.onSaveInstanceState(CordovaInterfaceImpl.java:173)
at
org.apache.cordova.CordovaActivity.onSaveInstanceState(CordovaActivity.java:465)
at android.app.Activity.performSaveInstanceState(Activity.java:1298)
at
android.app.Instrumentation.callActivityOnSaveInstanceState(Instrumentation.java:1288)
at
android.app.ActivityThread.callCallActivityOnSaveInstanceState(ActivityThread.java:3958)
at
android.app.ActivityThread.performStopActivityInner(ActivityThread.java:3369)
at
android.app.ActivityThread.handleStopActivity(ActivityThread.java:3425)
at android.app.ActivityThread.access$1100(ActivityThread.java:151)
at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1332)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
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)
Recreate
cordova create testapp
cd testapp
cordova platform add [email protected]
Modify MainActivity to launch a second Cordova Activity like this:
change MainActivity.java
Notice no init or loadUrl called, this is on purpose in our App for this use
case we want to avoid this, and let the second Activity to call loadUrl
public class MainActivity extends CordovaActivity
{
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
}
@Override
protected void onStart(){
super.onStart();
Intent newActivity = new Intent(this, MainActivity2.class);
startActivity(newActivity);
}
}
Add class io.cordova.hellocordova.MainActivity2.java
public class MainActivity2 extends CordovaActivity
{
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
// Set by <content src="index.html" /> in config.xml
loadUrl(launchUrl);
}
}
Add activity to AndroidManifest.xml
<activity android:name="io.cordova.hellocordova.MainActivity2" />
Since init() or loadUrl was never called in MainActivity, pluginManager never
got created, this let pluginManager be null
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