Android 1.5 Programming with TabHost and Buttons

Question

I am currently testing the Android 1.5 SDK, and I have seen some examples on TabHost. I am trying to use a different button on each tab to complete my tasks.

What I tried used onClickListiner () and onClick (). I think this is what all developers use, but I always get an empty exception in LogCat every time I click a button. I also have every XML layout, so I call Tab like: tab.add (... setContent (R.id.firstTabLayout))

firstTabLayout = layout for Button and TextView.

What would be the best way to get the / TextView button to work correctly under TabHost?

Answer 1

, ,

layout.xml

<TabWidget android:id="@android:id/tabs"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content" />

<FrameLayout android:id="@android:id/tabcontent"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">

    <LinearLayout android:id="@+id/tab1"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent">

        <TextView android:id="@android:id/text"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content" />

    </LinearLayout>
    <LinearLayout android:id="@+id/tab2"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent">

        <TextView android:id="@android:id/text"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content" />

    </LinearLayout>
    <LinearLayout android:id="@+id/tab3"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent">

        <TextView android:id="@android:id/text"
            android:layout_width="fill_parent"
                android:layout_height="wrap_content" />

    </LinearLayout>
</FrameLayout>

Tab.java

public class InitialActivity extends TabActivity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout);

        TabHost th = getTabHost();
        th.addTab(th.newTabSpec("tab_1").setIndicator("Tab1").setContent(R.id.tab1));
        th.addTab(th.newTabSpec("tab_2").setIndicator("Tab2").setContent(R.id.tab2));
        th.addTab(th.newTabSpec("tab_3").setIndicator("Tab3").setContent(R.id.tab3));
    }
}

findViewById() , findViewById(R.id.tab1).findViewById(R.id.text)