ABS4RC: I tryed to made SherlockMapActivity into Tab

[xWOLKx]

I dont know if this is the correct way, so I try to ask you because it make error when I change the tab 2 times.

I'm working on 2.3.7 device with abs4rc (14.2) and map plugin.

I try to make an activity with 2 tab, one show map:

import android.os.Bundle;
import com.actionbarsherlock.app.ActionBar;
import com.actionbarsherlock.app.ActionBar.Tab;
import com.actionbarsherlock.app.SherlockMapActivity;

public class RunActivity extends SherlockMapActivity implements ActionBar.TabListener {

    @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.empty);

            getSupportActionBar().setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

            ActionBar.Tab tab = getSupportActionBar().newTab();
            tab.setText("Text");
            tab.setTabListener(this);
            getSupportActionBar().addTab(tab);

            ActionBar.Tab tabx = getSupportActionBar().newTab();
            tabx.setText("Map");
            tabx.setTabListener(this);
            getSupportActionBar().addTab(tabx);

        }

    @Override
    public void onTabSelected(Tab tab) {
        // TODO Auto-generated method stub
        if(tab.getPosition()==1)
            this.setContentView(R.layout.runmap);
        else
            this.setContentView(R.layout.empty);
    }

    @Override
    public void onTabUnselected(Tab tab) {
        // TODO Auto-generated method stub


    }

    @Override
    public void onTabReselected(Tab tab) {
        // TODO Auto-generated method stub

    }

    @Override
    protected boolean isRouteDisplayed() {
        // TODO Auto-generated method stub
        return false;
    }
}

In runmap.xml I have only

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/map"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">

    <com.google.android.maps.MapView
        android:id="@+id/mapView"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:apiKey="" />
</LinearLayout>

So this make this logcat when touch for the second time the map tab:

02-15 13:07:47.049: W/dalvikvm(26022): threadid=1: thread exiting with uncaught exception (group=0x40018560)
02-15 13:07:47.079: E/AndroidRuntime(26022): FATAL EXCEPTION: main
02-15 13:07:47.079: E/AndroidRuntime(26022): android.view.InflateException: Binary XML file line #9: Error inflating class <unknown>
02-15 13:07:47.079: E/AndroidRuntime(26022):    at android.view.LayoutInflater.createView(LayoutInflater.java:518)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:570)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:623)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at android.view.LayoutInflater.inflate(LayoutInflater.java:408)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at com.actionbarsherlock.internal.ActionBarSherlockCompat.setContentView(ActionBarSherlockCompat.java:659)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at com.actionbarsherlock.app.SherlockMapActivity.setContentView(SherlockMapActivity.java:218)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at it.zonde.android.easytracks.RunActivity.onTabSelected(RunActivity.java:33)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at com.actionbarsherlock.internal.app.ActionBarImpl.selectTab(ActionBarImpl.java:523)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at com.actionbarsherlock.internal.app.ActionBarImpl$TabImpl.select(ActionBarImpl.java:906)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at com.actionbarsherlock.internal.widget.ScrollingTabContainerView$TabClickListener.onClick(ScrollingTabContainerView.java:505)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at android.view.View.performClick(View.java:2506)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at android.view.View$PerformClick.run(View.java:9112)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at android.os.Handler.handleCallback(Handler.java:587)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at android.os.Handler.dispatchMessage(Handler.java:92)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at android.os.Looper.loop(Looper.java:130)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at android.app.ActivityThread.main(ActivityThread.java:3835)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at java.lang.reflect.Method.invokeNative(Native Method)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at java.lang.reflect.Method.invoke(Method.java:507)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at dalvik.system.NativeStart.main(Native Method)
02-15 13:07:47.079: E/AndroidRuntime(26022): Caused by: java.lang.reflect.InvocationTargetException
02-15 13:07:47.079: E/AndroidRuntime(26022):    at java.lang.reflect.Constructor.constructNative(Native Method)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at java.lang.reflect.Constructor.newInstance(Constructor.java:415)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at android.view.LayoutInflater.createView(LayoutInflater.java:505)
02-15 13:07:47.079: E/AndroidRuntime(26022):    ... 22 more
02-15 13:07:47.079: E/AndroidRuntime(26022): Caused by: java.lang.IllegalStateException: You are only allowed to have a single MapView in a MapActivity
02-15 13:07:47.079: E/AndroidRuntime(26022):    at com.google.android.maps.MapActivity.setupMapView(MapActivity.java:397)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at com.google.android.maps.MapView.<init>(MapView.java:289)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at com.google.android.maps.MapView.<init>(MapView.java:264)
02-15 13:07:47.079: E/AndroidRuntime(26022):    at com.google.android.maps.MapView.<init>(MapView.java:247)
02-15 13:07:47.079: E/AndroidRuntime(26022):    ... 25 more
02-15 13:07:48.869: I/Process(26022): Sending signal. PID: 26022 SIG: 9

[JakeWharton]

The problem here is that you are calling setContentView more than once which is not recommended (nor doing what you want). Maps are a fickle beast--especially when they have to be displayed and hidden.

What I would recommend doing is including both the map view and the other tab's view in a single layout XML and just changing the visibility of each depending on which tab was selected. This will be a lot easier to manage.

If you wanted to still have separate layouts, you need to remove all of the existing views when changing tabs like this:

ViewGroup content = (ViewGroup)findViewById(android.R.id.content);
content.removeAllViews();
getLayoutInflater().inflate(content, R.layout.runmap);

Inflating from XML is an expensive operation though so you may want to only perform the inflation once and store it in a variable.

The Google Maps library imposes this restriction of having only one map view in the view hierarchy at once so you need to play by its rules.