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POApp crashing when using fragments
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copied!<p>Im working with fragments and..</p> <p>Ive got a problem in my code that I just cant find.</p> <p>The logcat points at this piece of code, in one of my fragments:</p> <pre><code> @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { return inflater.inflate(R.layout.activity_main, container, false); } </code></pre> <p>My main class (the FragmentActivity):</p> <pre><code>import android.app.Activity; import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentTransaction; import android.view.View; public class Fragments extends FragmentActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_fragments); MainActivity fragment = new MainActivity(); FragmentTransaction transaction = getSupportFragmentManager() .beginTransaction(); transaction.add(R.id.fragment_place, fragment); transaction.commit(); } public void onSelectFragment(View view) { Fragment newFragment; if (view == findViewById(R.id.add)) { newFragment = new Add(); } else if (view == findViewById(R.id.map)) { newFragment = new MainActivity(); } else { newFragment = new MainActivity(); } FragmentTransaction transaction = getSupportFragmentManager() .beginTransaction(); transaction.replace(R.id.fragment_place, newFragment); transaction.addToBackStack(null); transaction.commit(); } } </code></pre> <p>and the logcat:</p> <pre><code>09-30 00:02:52.363: E/AndroidRuntime(32284): FATAL EXCEPTION: main 09-30 00:02:52.363: E/AndroidRuntime(32284): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.free/com.example.free.Fragments}: android.view.InflateException: Binary XML file line #8: Error inflating class fragment 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2185) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2210) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.app.ActivityThread.access$600(ActivityThread.java:142) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1208) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.os.Handler.dispatchMessage(Handler.java:99) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.os.Looper.loop(Looper.java:137) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.app.ActivityThread.main(ActivityThread.java:4931) 09-30 00:02:52.363: E/AndroidRuntime(32284): at java.lang.reflect.Method.invokeNative(Native Method) 09-30 00:02:52.363: E/AndroidRuntime(32284): at java.lang.reflect.Method.invoke(Method.java:511) 09-30 00:02:52.363: E/AndroidRuntime(32284): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 09-30 00:02:52.363: E/AndroidRuntime(32284): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:558) 09-30 00:02:52.363: E/AndroidRuntime(32284): at dalvik.system.NativeStart.main(Native Method) 09-30 00:02:52.363: E/AndroidRuntime(32284): Caused by: android.view.InflateException: Binary XML file line #8: Error inflating class fragment 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.view.LayoutInflater.rInflate(LayoutInflater.java:746) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.view.LayoutInflater.inflate(LayoutInflater.java:489) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.view.LayoutInflater.inflate(LayoutInflater.java:396) 09-30 00:02:52.363: E/AndroidRuntime(32284): at com.example.free.MainActivity.onCreateView(MainActivity.java:124) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.support.v4.app.Fragment.performCreateView(Fragment.java:1478) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:927) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1104) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1460) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:556) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1163) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.app.Activity.performStart(Activity.java:5018) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148) 09-30 00:02:52.363: E/AndroidRuntime(32284): ... 11 more 09-30 00:02:52.363: E/AndroidRuntime(32284): Caused by: java.lang.ClassCastException: com.google.android.gms.maps.MapFragment cannot be cast to android.support.v4.app.Fragment 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.support.v4.app.Fragment.instantiate(Fragment.java:402) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.support.v4.app.Fragment.instantiate(Fragment.java:377) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:277) 09-30 00:02:52.363: E/AndroidRuntime(32284): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:676) 09-30 00:02:52.363: E/AndroidRuntime(32284): ... 24 more </code></pre> <p>The class "MainActivity" is very long so I pasted it using pasebin:</p> <p><a href="http://pastebin.com/Lt3wbNzD" rel="nofollow">http://pastebin.com/Lt3wbNzD</a></p> <p>Thanks for your assistance!</p> <p><strong>Edit:</strong></p> <pre><code>private GoogleMap map; FragmentTransaction transaction = getChildFragmentManager().beginTransaction(); transaction.add(R.id.map, map).commit(); </code></pre> <p>it shows an error:</p> <blockquote> <p>The method add(int, Fragment) in the type FragmentTransaction is not applicable for the arguments (int, GoogleMap)</p> </blockquote>

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