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POError inflating android.support.v4.app.FragmentTabHost
 

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  1. POError inflating android.support.v4.app.FragmentTabHost
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    <p>I am trying to create a calendar application that will work with android sdk 7 until present. I want to use tabs to display different calendar views(Weekly, Monthly, Daily, Agenda). I therefore need to use fragments for each view and use the support library for backward compatibility.</p> <p>Here is my xml Layout file</p> <pre><code>&lt;android.support.v4.app.FragmentTabHost xmlns:android="http://schemas.android.com/apk/res/android" android:id="@android:id/tabhost" android:layout_width="match_parent" android:layout_height="match_parent"&gt; &lt;LinearLayout android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"&gt; &lt;TabWidget android:id="@android:id/tabs" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_weight="0"/&gt; &lt;FrameLayout android:id="@android:id/tabcontent" android:layout_width="0dp" android:layout_height="0dp" android:layout_weight="0"/&gt; &lt;FrameLayout android:id="@+id/realtabcontent" android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1"/&gt; &lt;/LinearLayout&gt; &lt;/android.support.v4.app.FragmentTabHost&gt; </code></pre> <p>Here is the activity that goes with it</p> <pre><code>package com.bmooredev.bpassistant; import com.bmooredev.bpassistant.R; import android.os.Bundle; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentTabHost; import android.support.v4.app.FragmentTransaction; public class EventsActivity extends FragmentActivity{ private WeekFragment FragWeek=new WeekFragment(); private MonthFragment FragMonth=new MonthFragment(); private DayFragment FragDay=new DayFragment(); private AgendaFragment FragAgenda=new AgendaFragment(); private int month; private int day; private int year; private FragmentTabHost mTabHost; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_events); mTabHost = (FragmentTabHost)findViewById(android.R.id.tabhost); mTabHost.setup(this, getSupportFragmentManager(), R.id.realtabcontent); mTabHost.addTab(mTabHost.newTabSpec("simple").setIndicator("Simple"), WeekFragment.class, null); mTabHost.addTab(mTabHost.newTabSpec("contacts").setIndicator("Contacts"), MonthFragment.class, null); mTabHost.addTab(mTabHost.newTabSpec("custom").setIndicator("Custom"), DayFragment.class, null); mTabHost.addTab(mTabHost.newTabSpec("throttle").setIndicator("Throttle"), AgendaFragment.class, null); showFragWeek(); } private void showFragWeek(){ FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); ft.replace(R.id.realtabcontent, FragWeek); ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN); ft.commit(); } private void showFragMonth(){ FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); ft.replace(R.id.realtabcontent, FragMonth); ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN); ft.commit(); } private void showFragDay(){ FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); ft.replace(R.id.realtabcontent, FragDay); ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN); ft.commit(); } private void showFragAgenda(){ FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); ft.replace(R.id.realtabcontent, FragAgenda); ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN); ft.commit(); } } </code></pre> <p>This is what the logcat shows when I run it</p> <pre><code>03-01 10:07:28.655: E/AndroidRuntime(6814): FATAL EXCEPTION: main 03-01 10:07:28.655: E/AndroidRuntime(6814): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.bmooredev.bpassistant/com.bmooredev.bpassistant.EventsActivity}: android.view.InflateException: Binary XML file line #1: Error inflating class android.support.v4.app.FragmentTabHost 03-01 10:07:28.655: E/AndroidRuntime(6814): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059) 03-01 10:07:28.655: E/AndroidRuntime(6814): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084) 03-01 10:07:28.655: E/AndroidRuntime(6814): at android.app.ActivityThread.access$600(ActivityThread.java:130) 03-01 10:07:28.655: E/AndroidRuntime(6814): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195) 03-01 10:07:28.655: E/AndroidRuntime(6814): at android.os.Handler.dispatchMessage(Handler.java:99) 03-01 10:07:28.655: E/AndroidRuntime(6814): at android.os.Looper.loop(Looper.java:137) 03-01 10:07:28.655: E/AndroidRuntime(6814): at android.app.ActivityThread.main(ActivityThread.java:4745) 03-01 10:07:28.655: E/AndroidRuntime(6814): at java.lang.reflect.Method.invokeNative(Native Method) 03-01 10:07:28.655: E/AndroidRuntime(6814): at java.lang.reflect.Method.invoke(Method.java:511) 03-01 10:07:28.655: E/AndroidRuntime(6814): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 03-01 10:07:28.655: E/AndroidRuntime(6814): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 03-01 10:07:28.655: E/AndroidRuntime(6814): at dalvik.system.NativeStart.main(Native Method) 03-01 10:07:28.655: E/AndroidRuntime(6814): Caused by: android.view.InflateException: Binary XML file line #1: Error inflating class android.support.v4.app.FragmentTabHost 03-01 10:07:28.655: E/AndroidRuntime(6814): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:698) 03-01 10:07:28.655: E/AndroidRuntime(6814): at android.view.LayoutInflater.inflate(LayoutInflater.java:466) 03-01 10:07:28.655: E/AndroidRuntime(6814): at android.view.LayoutInflater.inflate(LayoutInflater.java:396) 03-01 10:07:28.655: E/AndroidRuntime(6814): at android.view.LayoutInflater.inflate(LayoutInflater.java:352) 03-01 10:07:28.655: E/AndroidRuntime(6814): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:256) 03-01 10:07:28.655: E/AndroidRuntime(6814): at android.app.Activity.setContentView(Activity.java:1867) 03-01 10:07:28.655: E/AndroidRuntime(6814): at com.bmooredev.bpassistant.EventsActivity.onCreate(EventsActivity.java:26) 03-01 10:07:28.655: E/AndroidRuntime(6814): at android.app.Activity.performCreate(Activity.java:5008) 03-01 10:07:28.655: E/AndroidRuntime(6814): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079) 03-01 10:07:28.655: E/AndroidRuntime(6814): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023) 03-01 10:07:28.655: E/AndroidRuntime(6814): ... 11 more 03-01 10:07:28.655: E/AndroidRuntime(6814): Caused by: java.lang.ClassNotFoundException: android.support.v4.app.FragmentTabHost 03-01 10:07:28.655: E/AndroidRuntime(6814): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61) 03-01 10:07:28.655: E/AndroidRuntime(6814): at java.lang.ClassLoader.loadClass(ClassLoader.java:501) 03-01 10:07:28.655: E/AndroidRuntime(6814): at java.lang.ClassLoader.loadClass(ClassLoader.java:461) 03-01 10:07:28.655: E/AndroidRuntime(6814): at android.view.LayoutInflater.createView(LayoutInflater.java:552) 03-01 10:07:28.655: E/AndroidRuntime(6814): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687) 03-01 10:07:28.655: E/AndroidRuntime(6814): ... 20 more </code></pre> <p>Also, the project runs fine with exactly the same code if I build it with 2.2.</p>
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    1. CO"Also, the project runs fine with exactly the same code if I build it with 2.2." -- so, build it with 2.2. The error means that Android cannot find the `android-support-v4.jar`, which should be in `libs/`.
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      1. POError inflating android.support.v4.app.FragmentTabHost
      1. USCommonsWare
    2. COI just double checked and the jar is there. I want to build it in the current version because I want access to newer features when the app is running on a current device. Mostly the holo theme and some of my other activities use newer classes with a check on the sdk version
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      1. POError inflating android.support.v4.app.FragmentTabHost
      1. USBmoore
    3. COHmmmm... A simple change in build target shouldn't be affecting whether or not that class is included. If this is a production build, make sure your `proguard-project.txt` says to keep `FragmentTabHost`, so ProGuard doesn't remove it.
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      1. POError inflating android.support.v4.app.FragmentTabHost
      1. USCommonsWare
 

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