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POAndroid TabHost- Opening a new TabLayout from a button click
 

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  1. POAndroid TabHost- Opening a new TabLayout from a button click
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    <p>I have created my TabLayout, and it works fine when I have set up to be the first screen to load from my main class. I followed the tutorial here: <a href="http://joshclemm.com/blog/?p=136" rel="nofollow">http://joshclemm.com/blog/?p=136</a></p> <p>However, I don't want it to be first thing to load.</p> <p>I have an application with a <code>splashscreen</code>, then go to a <code>home</code> screen with no tabs. It has a bunch of buttons on it. When you then click one of the buttons I want to load that view which is placed in a <code>tabgroup</code> and then you have regular tabs to click around. Any ideas how to do this basic thing on Android?</p> <p>I keep getting a Runtime exception error.</p> <pre><code>java.lang.RuntimeException: Unable to start activity ComponentInfo{ttj.android.ft/ttj.android.ft.Transfers}: java.lang.IllegalStateException: Did you forget to call 'public void setup(LocalActivityManager activityGroup)' </code></pre> <p>Here is my <code>onCreate</code> method code.</p> <p>I have a button called <code>Transfers</code>, when it is clicked the <code>Transfers.class activity</code>, which is a tablayout should open but doesn't. The activity is in the android manifest. I'm a noob, so I know I'm probably doing something very simple wrong here. </p> <p>Help would be greatly appreciated!</p> <pre><code>public class MainActivity extends Activity { Button Records, Transfers, Leagues; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Transfers = (Button) findViewById(R.id.bTransfers); Transfers.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { // TODO Auto-generated method stub Intent openTransfers = new Intent(MainActivity.this, Transfers.class); startActivity(openTransfers); } }); </code></pre> <p>Here is my Android Manifest</p> <pre><code> &lt;activity android:name=".Splash" android:label="@string/app_name" &gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.MAIN" /&gt; &lt;category android:name="android.intent.category.LAUNCHER" /&gt; &lt;/intent-filter&gt; &lt;/activity&gt; &lt;activity android:name=".MainActivity" android:label="@string/app_name" &gt; &lt;intent-filter&gt; &lt;action android:name="ttj.android.ft.STARTINGPOINT" /&gt; &lt;category android:name="android.intent.category.DEFAULT" /&gt; &lt;/intent-filter&gt; &lt;/activity&gt; &lt;activity android:name=".Transfers" android:label="@string/app_name" &gt; &lt;intent-filter&gt; &lt;action android:name="ttj.android.ft.TRANSFERS" /&gt; &lt;category android:name="android.intent.category.DEFAULT" /&gt; &lt;/intent-filter&gt; &lt;/activity&gt; </code></pre> <p>Here is the log from logcat when it crashes.</p> <pre><code>FATAL EXCEPTION: main java.lang.RuntimeException: Unable to start activity java.lang.IllegalStateException: Did you forget to call 'public void setup(LocalActivityManager activityGroup)'? at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981) at android.app.ActivityThread.access$600(ActivityThread.java:123) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4424) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.IllegalStateException: Did you forget to call 'public void setup(LocalActivityManager activityGroup)'? at android.widget.TabHost$IntentContentStrategy.getContentView(TabHost.java:680) at android.widget.TabHost.setCurrentTab(TabHost.java:346) at android.widget.TabHost.addTab(TabHost.java:236) at ttj.android.ft.Transfers.onCreate(Transfers.java:52) at android.app.Activity.performCreate(Activity.java:4465) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920) </code></pre> <p>Transfer Activity code</p> <pre><code>public class Transfers extends TabActivity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.m_transfers); TabHost mTabHost = getTabHost(); Intent intentTeams = new Intent().setClass(this, TransfersTeams.class); TabSpec teamsTab = mTabHost.newTabSpec("TEAMS").setIndicator("") .setContent(intentTeams); Intent intentSummary = new Intent().setClass(this, TransfersSummary.class); TabSpec summaryTab = mTabHost.newTabSpec("SUMMARY").setIndicator("") .setContent(intentSummary); mTabHost.addTab(teamsTab); mTabHost.addTab(summaryTab); mTabHost.setCurrentTab(0); } </code></pre> <p><strong>FIXED</strong></p> <p>My classes TransfersTeams and TransfersSummary were extending TabActivity. I changed this to Activity and it works now.</p>
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