I'm trying to customize my ActionBar but whenever I try to emulate the application it closes and returns me the following error in LogCat:
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: FATAL EXCEPTION: main
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: java.lang.RuntimeException: Unable to start activity ComponentInfo{br.com.jeiferson.agenda/br.com.jeiferson.agenda.MainActivity}: java.lang.NullPointerException
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at android.app.ActivityThread.access$600(ActivityThread.java:141)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:99)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at android.os.Looper.loop(Looper.java:137)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5041)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at java.lang.reflect.Method.invokeNative(Native Method)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at java.lang.reflect.Method.invoke(Method.java:511)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at dalvik.system.NativeStart.main(Native Method)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: Caused by: java.lang.NullPointerException
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at br.com.jeiferson.agenda.CustomActionBar.setCustomActionBar(CustomActionBar.java:13)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at br.com.jeiferson.agenda.MainActivity.onCreate(MainActivity.java:22)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at android.app.Activity.performCreate(Activity.java:5104)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at android.app.ActivityThread.access$600(ActivityThread.java:141)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:99)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at android.os.Looper.loop(Looper.java:137)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5041)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at java.lang.reflect.Method.invokeNative(Native Method)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at java.lang.reflect.Method.invoke(Method.java:511)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
01-07 16:21:57.092 1388-1388/br.com.jeiferson.agenda E/AndroidRuntime: at dalvik.system.NativeStart.main(Native Method)
My MainActivity.java class
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ActionBar mActionBar = getActionBar();
LayoutInflater mInflater = LayoutInflater.from(this);
CustomActionBar.setCustomActionBar(mActionBar, mInflater);
}
}
My CustomActionBar.java class
public class CustomActionBar {
public static void setCustomActionBar(ActionBar acBar, LayoutInflater ltInflater) {
acBar.setDisplayShowHomeEnabled(false);
acBar.setDisplayShowTitleEnabled(false);
View mCustomView = ltInflater.inflate(R.layout.custom_actionbar, null);
acBar.setCustomView(mCustomView);
acBar.setDisplayShowCustomEnabled(true);
}
}
I'm not sure how to do this,
Att. Jeiferson