Hi everyone,
The problem is as follows:
- My app is deriving from TabActivity that has 3 tabs
- Each tab has a ListView
- Tab1 is populated by an adapter that inherit SimpleCursorAdapter and
overrided the bindView() method. This tab is displaying correctly.
- Tab 2 is also populated by another adatper that inherit
SimpleCursorAdapter and overrided the bindView() method. For some
reason that I don't understand, the overrided bindView() is not being
called at all. Thus the tab is not displaying correctly.
How come the overrided bindView is not being called? What did I miss?
Here's my code fragment:
MyApp.java
public class MyApp extends TabActivity
{
private TabHost mTabHost;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mTabHost = getTabHost();
mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator("Tab1").setContent(R.id.TAB1));
mTabHost.addTab(mTabHost.newTabSpec("tab2").setIndicator("Tab2").setContent(R.id.TAB2));
mTabHost.addTab(mTabHost.newTabSpec("tab3").setIndicator("Tab3").setContent(R.id.TAB3));
mTabHost.setCurrentTabByTag("tab1");
ListView view1 = (ListView)findViewById(R.id.TAB1);
populate(view1);
ListView view2 = (ListView)findViewById(R.id.TAB2);
populate2(view2);
}
private void populate(ListView view)
{
...
// some code that fills cursor1
...
adapter1 = new Adapter1(this, R.layout.tab1_entry, cursor1, from1,
to1);
view.setAdapter(adapter1);
}
//
private void populate2(ListView view)
{
...
// some code that fills cursor2
// I have traced in debugger that cursor2, from2, to2 are not null
...
adapter2 = new Adapter2(this, R.layout.tab2_entry, cursor2, from2,
to2);
view.setAdapter(adapter2);
}
}
Adapter1.java
public class Adapter1 extends SimpleCursorAdapter
{
Activity mActivity;
public Adapter1(Activity activity, int layout, Cursor c, String[]
from, int[] to)
{
super(activity, layout, c, from, to);
mActivity = activity;
}
/**
* {...@inheritdoc}
*/
@Override
public void bindView(View view, Context context, Cursor cursor)
{
super.bindView(view, context, cursor);
...
// Do custom binding, this is working fine
...
}
}
Adapter2.java
public class Adapter2 extends SimpleCursorAdapter
{
public Adapter2(Context context, int layout, Cursor c, String[]
from, int[] to)
{
super(context, layout, c, from, to);
}
/**
* {...@inheritdoc}
*/
@Override
public void bindView(View view, Context context, Cursor cursor)
{
...
// Do custom binding here
// But this function is never being called.
// I put breakpoint here in debugger, the method is not entered
...
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android";
android:id="@android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/
android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<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">
<ListView
android:id="@+id/TAB1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="Tab 1" />
<ListView
android:id="@+id/TAB2"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="Tab 2" />
<ListView
android:id="@+id/TAB3"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="Tab 3" />
</FrameLayout>
</LinearLayout>
</TabHost>
tab1_entry.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/
android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView android:text="@+id/Field11"
android:id="@+id/Field11"
android:focusable="false"
android:clickable="false"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
<ImageView android:id="@+id/separator1"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:focusable="false"
android:clickable="false"
android:layout_alignParentTop="true"
android:layout_alignParentBottom="true"
android:layout_marginRight="4px"/>
<TextView android:text="@+id/Field12"
android:id="@+id/Field12"
android:focusable="false"
android:clickable="false"
android:phoneNumber="true"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
<ImageView android:id="@+id/separator2"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:focusable="false"
android:clickable="false"
android:layout_alignParentTop="true"
android:layout_alignParentBottom="true"
android:layout_marginRight="4px"/>
<TextView android:text="@+id/Field13"
android:id="@+id/Field13"
android:phoneNumber="true"
android:focusable="false"
android:clickable="false"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
tab2_entry.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/
android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView android:text="@+id/Field21"
android:id="@+id/Field21"
android:focusable="false"
android:clickable="false"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
<ImageView android:id="@+id/separator3"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:focusable="false"
android:clickable="false"
android:layout_alignParentTop="true"
android:layout_alignParentBottom="true"
android:layout_marginRight="4px"/>
<TextView android:text="@+id/Field22"
android:id="@+id/Field22"
android:focusable="false"
android:clickable="false"
android:phoneNumber="true"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
<ImageView android:id="@+id/separator4"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:focusable="false"
android:clickable="false"
android:layout_alignParentTop="true"
android:layout_alignParentBottom="true"
android:layout_marginRight="4px"/>
<TextView android:text="@+id/Field23"
android:id="@+id/Field23"
android:phoneNumber="true"
android:focusable="false"
android:clickable="false"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
Thanks & Regards,
Seamus Huang
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