And also found in my control java file override onCreate(Bundle saveInstanceState) method, super.onCreate(savedInstanceState) cause error, because saveInstanceState = null;
Thanks On Feb 9, 11:57 am, AndroidGeek <[email protected]> wrote: > Hey, > I tried to add composite control to tabHost, I followed android > example Tab3.java to do that. > I created a new activity with listview, textview as following: > > <?xml version="1.0" encoding="utf-8"?> > <ScrollView xmlns:android="http://schemas.android.com/apk/res/android"; > android:orientation="vertical" > android:layout_width="fill_parent" > android:layout_height="fill_parent"> > <LinearLayout android:id="@+id/goal" > android:layout_width="fill_parent" > android:layout_height="fill_parent" > android:background="#fff49501" android:orientation="vertical" > xmlns:android="http://schemas.android.com/apk/res/android";> > <ListView android:id="@+id/goallist" > android:layout_width="fill_parent" > android:layout_height="150px"> > </ListView> > <TextView android:id="@+id/healthTipLabel" > android:layout_width="fill_parent" > android:layout_height="wrap_content" > android:layout_marginTop="20px" > android:text="Health Tips" android:textSize="20sp" > android:typeface="sans" android:textStyle="bold" > android:layout_gravity="center_horizontal"> > </TextView> > <ListView android:id="@+id/healthtiplist" > android:layout_width="fill_parent" > android:layout_height="200px" > android:layout_marginTop="20px"> > </ListView> > </LinearLayout> > </ScrollView> > > and my java: > > public class GoalView extends Activity { > protected void onCreate(Bundle savedInstanceState) { > super.onCreate(savedInstanceState); > setContentView(R.layout.goalcontrol); > } > > } > > manifest file: > > <activity android:name=".views.GoalView"> > <intent-filter> > <action > android:name="android.intent.action.MAIN"></action> > </intent-filter> > </activity> > > Tab.java: > > public class MyActivity extends TabActivity { > > DatabaseAdapter da = null; > > /** Called when the activity is first created. */ > @Override > public void onCreate(Bundle savedInstanceState) { > super.onCreate(savedInstanceState); > // setContentView(R.layout.main); > > ArrayList<String> script = loadCreateScript(); > da = (DatabaseAdapter.getInstance(this, script)); > > final TabHost tabHost = getTabHost(); > > tabHost.addTab(tabHost.newTabSpec("Goals").setIndicator("Goals", > > getResources().getDrawable(R.drawable.goal_icon)).setContent(new > Intent(this, GoalView.class))); > > But when I run my app, I got runtime exception: > InvocationTargetException (id=xxxxxxxxxxx) > Unable to start activity ComponentInfo{com.mycompany/ > com.mycomapny.MyActivity}: java.lang.RuntimeException: Unable to > instantiate activity ComponentInfo{com.mycompany/ > com.mycompany.views.GoalView}: java.lang.InstantiationException: > com.mycompany.views.GoalView > > Please help!!! > Thanks in advance. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
