[android-developers] Re: add tab cause exception
Hey did you find out what was wrong? im having a very similar issue.
On Feb 9, 9:04 am, AndroidGeek binli...@gmail.com wrote:
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 binli...@gmail.com 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);
ArrayListString 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=xxx)
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.- Hide quoted text -
- Show quoted text -
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[android-developers] Re: add tab cause exception
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 binli...@gmail.com 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);
ArrayListString 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=xxx)
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.
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