Fragment :opening activity from fragment giving ActivityNotFoundException:

问题

I am trying to open an activity from Listfragment as below

@Override
    public void onListItemClick(ListView l, View v, int position, long id) {
        super.onListItemClick(l, v, position, id);
        ((MenuActivity)getActivity()).getSlideoutHelper().close();
        Intent myIntent = new Intent(getActivity(), TravellerTimer.class);
        getActivity().startActivity(myIntent.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY));

    }

i registered the TimeTraveller activity in manifest file but still its giving ActivityNotFoundException

Below is my log trace

04-19 17:14:00.030: E/AndroidRuntime(12188): FATAL EXCEPTION: main
04-19 17:14:00.030: E/AndroidRuntime(12188): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.vpiabstest/com.example.activity.TravellerTimer}; have you declared this activity in your AndroidManifest.xml?
04-19 17:14:00.030: E/AndroidRuntime(12188):    at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1556)
04-19 17:14:00.030: E/AndroidRuntime(12188):    at android.app.Instrumentation.execStartActivity(Instrumentation.java:1431)
04-19 17:14:00.030: E/AndroidRuntime(12188):    at android.app.Activity.startActivityForResult(Activity.java:3446)
04-19 17:14:00.030: E/AndroidRuntime(12188):    at android.app.Activity.startActivityForResult(Activity.java:3407)
04-19 17:14:00.030: E/AndroidRuntime(12188):    at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:674)
04-19 17:14:00.030: E/AndroidRuntime(12188):    at android.app.Activity.startActivity(Activity.java:3617)

below is my manifest file

< application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >

    <receiver android:name=".service.ActivityService" />
    <receiver
        android:name=".service.StartupService"
        android:enabled="true"
        android:exported="false" >
        <intent-filter>
            <action android:name="android.intent.action.BOOT_COMPLETED" />
        </intent-filter>
    </receiver>

    <activity android:name="SampleActivity" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
        android:name=".MenuActivity"
        android:label="@string/app_name"
        android:theme="@style/MenuTheme" >
    </activity>
    <activity
        android:name=".VpiAbsTestActivity"
        android:theme="@style/Theme.VPI" />
    <activity
        android:name="com.example.activity.CreateTimer"
        android:configChanges="keyboardHidden|orientation|screenSize" />
    <activity
        android:name="com.example.activity.EditTimer"
        android:configChanges="keyboardHidden|orientation|screenSize" />
    <activity
        android:name="com.example.activity.FakeCall"
        android:configChanges="keyboardHidden|orientation|screenSize" />
    <activity
        android:name="com.example.activity.ContactList"
        android:configChanges="keyboardHidden|orientation|screenSize" />
    <activity
        android:name="com.example.activity.TravellerTimer"
        android:configChanges="keyboardHidden|orientation|screenSize" />
    <activity
        android:name="com.example.activity.TimerPrefrence"
        android:configChanges="keyboardHidden|orientation|screenSize" />

< /application>

Any help is appreciated. thanks

回答1:

Make sure that you have registered the Activity with full correct package name in the manifest

回答2:

Try the current class object using 'this' keyword to call your activity in the intent parameter .

Intent myIntent = new Intent(this.Urcurrentactivity, TravellerTimer.class);      this.Urcurrentactivity.startActivity(myIntent.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY));

Your code should also work but by just seeing this quotes, i cant make it sure .

回答3:

By seeing your code in PasteBin:

ArrayList<ActiveTimer> timerLists = new ArrayList<ActiveTimer>();
timerLists = ((TimerPrefrence) getApplication()).viewTimer();

you are trying to cast TimerPrefrence to an ActiveTimer ArrayList. That is the reason you are getting Class cast exception.

来源：https://stackoverflow.com/questions/16104133/fragment-opening-activity-from-fragment-giving-activitynotfoundexception

标签

android

android-fragments

activitynotfoundexception