Ich möchte ein Fragment in meiner Activity anzeigen.
Doch beim öffnen der App stürzt diese ab.
Das Fragment:
MainActivity layout file
Logcat:
Doch beim öffnen der App stürzt diese ab.
Java:
package com.ludevstudio.passwordmanager;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentTransaction;
import android.app.FragmentManager;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Window;
public class MainActivity extends FragmentActivity{
public IntroStep1IntroductionFragment step1;
public IntroStep2PasswordIntroductionFragment step2;
public android.app.FragmentManager fragmentManager;
public FragmentTransaction fragmentTransaction;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initIntroPages();
}
// init the Fragments for the Intro Page
private void initIntroPages() {
step1 = (IntroStep1IntroductionFragment) Fragment.instantiate(this, IntroStep1IntroductionFragment.class.getName(), null);
step2 = (IntroStep2PasswordIntroductionFragment) Fragment.instantiate(this, IntroStep2PasswordIntroductionFragment.class.getName(), null);
initFragmentManagement();
}
private void initFragmentManagement() {
fragmentManager = getFragmentManager();
fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.add(R.id.intro_container, step1);
fragmentTransaction.commit();
}
}Das Fragment:
Java:
package com.ludevstudio.passwordmanager;
import android.app.Fragment;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class IntroStep1IntroductionFragment extends Fragment {
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
// load the layout file
View view = inflater.inflate(R.layout.intro_step1_introduction, null);
return view;
}
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
}
}MainActivity layout file
XML:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout android:layout_width="match_parent"
android:id="@+id/intro_container"
android:layout_height="match_parent"
android:orientation="vertical"
xmlns:android="http://schemas.android.com/apk/res/android">
</RelativeLayout>Logcat:
Code:
09-12 20:09:08.199 5688-5696/? E/zygote: Failed sending reply to debugger: Broken pipe
09-12 20:09:08.724 5688-5688/? E/FragmentManager: No view found for id 0x7f09001b (passwordmanager.ludevstudio.com.passwordmanager:layout/activity_main) for fragment IntroStep1IntroductionFragment{f6b431f #1 id=0x7f09001b}
09-12 20:09:08.725 5688-5688/? E/FragmentManager: Activity state:
09-12 20:09:08.726 5688-5688/? E/FragmentManager: Local Activity 819366c State:
mResumed=false mStopped=false mFinished=false
mChangingConfigurations=false
09-12 20:09:08.727 5688-5688/? E/FragmentManager: mCurrentConfig={1.0 310mcc260mnc [en_US] ldltr sw411dp w411dp h750dp 560dpi nrml long port finger qwerty/v/v -nav/h appBounds=Rect(0, 0 - 1440, 2712) s.6}
mLoadersStarted=false
Active Fragments in 4d94435:
#0: ReportFragment{94860ca #0 android.arch.lifecycle.LifecycleDispatcher.report_fragment_tag}
09-12 20:09:08.733 5688-5688/? E/FragmentManager: mFragmentId=#0 mContainerId=#0 mTag=android.arch.lifecycle.LifecycleDispatcher.report_fragment_tag
09-12 20:09:08.734 5688-5688/? E/FragmentManager: mState=2 mIndex=0 mWho=android:fragment:0 mBackStackNesting=0
09-12 20:09:08.740 5688-5688/? E/FragmentManager: mAdded=true mRemoving=false mFromLayout=false mInLayout=false
09-12 20:09:08.741 5688-5688/? E/FragmentManager: mHidden=false mDetached=false mMenuVisible=true mHasMenu=false
mRetainInstance=false mRetaining=false mUserVisibleHint=true
mFragmentManager=FragmentManager{4d94435 in HostCallbacks{78af23b}}
mHost=android.app.Activity$HostCallbacks@78af23b
09-12 20:09:08.742 5688-5688/? E/FragmentManager: Child FragmentManager{994d58 in ReportFragment{94860ca}}:
FragmentManager misc state:
09-12 20:09:08.743 5688-5688/? E/FragmentManager: mHost=android.app.Activity$HostCallbacks@78af23b
mContainer=android.app.Fragment$1@e6eeb1
mParent=ReportFragment{94860ca #0 android.arch.lifecycle.LifecycleDispatcher.report_fragment_tag}
09-12 20:09:08.744 5688-5688/? E/FragmentManager: mCurState=2 mStateSaved=false mDestroyed=false
#1: IntroStep1IntroductionFragment{f6b431f #1 id=0x7f09001b}
mFragmentId=#7f09001b mContainerId=#7f09001b mTag=null
mState=1 mIndex=1 mWho=android:fragment:1 mBackStackNesting=0
09-12 20:09:08.745 5688-5688/? E/FragmentManager: mAdded=true mRemoving=false mFromLayout=false mInLayout=false
mHidden=false mDetached=false mMenuVisible=true mHasMenu=false
mRetainInstance=false mRetaining=false mUserVisibleHint=true
mFragmentManager=FragmentManager{4d94435 in HostCallbacks{78af23b}}
mHost=android.app.Activity$HostCallbacks@78af23b
Added Fragments:
#0: ReportFragment{94860ca #0 android.arch.lifecycle.LifecycleDispatcher.report_fragment_tag}
#1:
09-12 20:09:08.746 5688-5688/? E/FragmentManager: IntroStep1IntroductionFragment{f6b431f #1 id=0x7f09001b}
FragmentManager misc state:
mHost=android.app.Activity$HostCallbacks@78af23b
09-12 20:09:08.747 5688-5688/? E/FragmentManager: mContainer=android.app.Activity$HostCallbacks@78af23b
mCurState=2 mStateSaved=false mDestroyed=false
Looper (main, tid 2) {cf3bf96}
Message 0: { when=+9s797ms what=132 target=android.app.ActivityThread$H }
(Total messages: 1, polling=false, quitting=false)
Local FragmentActivity 819366c State:
mCreated=falsemResumed=false mStopped=true mReallyStopped=true
FragmentManager misc state:
mHost=android.support.v4.app.FragmentActivity$HostCallbacks@c2c7717
mContainer=android.support.v4.app.FragmentActivity$HostCallbacks@c2c7717
09-12 20:09:08.748 5688-5688/? E/FragmentManager: mCurState=1 mStateSaved=false mStopped=false mDestroyed=false
09-12 20:09:08.750 5688-5688/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: passwordmanager.ludevstudio.com.passwordmanager, PID: 5688
java.lang.RuntimeException: Unable to start activity ComponentInfo{passwordmanager.ludevstudio.com.passwordmanager/com.ludevstudio.passwordmanager.MainActivity}: java.lang.IllegalArgumentException: No view found for id 0x7f09001b (passwordmanager.ludevstudio.com.passwordmanager:layout/activity_main) for fragment IntroStep1IntroductionFragment{f6b431f #1 id=0x7f09001b}
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2817)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892)
at android.app.ActivityThread.-wrap11(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593)
at android.os.Handler.dispatchMessage(Handler.java:105)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6541)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
Caused by: java.lang.IllegalArgumentException: No view found for id 0x7f09001b (passwordmanager.ludevstudio.com.passwordmanager:layout/activity_main) for fragment IntroStep1IntroductionFragment{f6b431f #1 id=0x7f09001b}
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1268)
at android.app.FragmentManagerImpl.addAddedFragments(FragmentManager.java:2415)
at android.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2194)
at android.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManager.java:2148)
at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2049)
at android.app.FragmentManagerImpl.dispatchMoveToState(FragmentManager.java:3044)
at android.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManager.java:2991)
at android.app.FragmentController.dispatchActivityCreated(FragmentController.java:178)
at android.app.Activity.performCreateCommon(Activity.java:6969)
at android.app.Activity.performCreate(Activity.java:6977)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1213)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2770)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892)
at android.app.ActivityThread.-wrap11(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593)
at android.os.Handler.dispatchMessage(Handler.java:105)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6541)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
