Android: startChildActivity (tabgroupactivity) close the app

Question

I have this code:

public class IntroInventario extends Activity{
@Override 
public void onCreate(Bundle savedInstanceState){ 
    super.onCreate(savedInstanceState);
    setContentView(R.layout.intro_inventario);
    final Database db=new Database(this);
    db.open(); 
    Cursor password=db.dammi_password();
    final EditText inserisci=(EditText) findViewById(R.id.inserisci_password);
    Button entra_inventario=(Button) findViewById(R.id.entra_inventario);
    TextView dimenticata=(TextView) findViewById(R.id.dimenticata_password);
    final Toast toast=new Toast(this);
    while(password.moveToNext()){
        if(password.getString(password.getColumnIndex("password")).equals("")){
            // primo accesso
            TabGroupActivity parentActivity = (TabGroupActivity)getParent();
            Intent intent = new Intent(IntroInventario.this, InventarioNoPassword.class);
            finish();
            parentActivity.startChildActivity("InventarioNoPassword",intent);
        }
    }
    db.close();
    // inserisci password
    entra_inventario.setOnClickListener(new OnClickListener(){
        public void onClick(View v){
            db.open(); 
            Cursor password_2=db.dammi_password();
            while(password_2.moveToNext()){
                if(inserisci.getText().toString().equals(password_2.getString(password_2.getColumnIndex("password")))){
                    TabGroupActivity parentActivity = (TabGroupActivity)getParent();
                    Intent intent = new Intent(getParent(), Inventario.class);
                    finish();
                    parentActivity.startChildActivity("Inventario",intent);
                }else{
                    Toast.makeText(IntroInventario.this,"Password sbagliata",Toast.LENGTH_LONG);
                    toast.show();
                }
            }
            db.close();
        }
    });
    // password dimenticata
    dimenticata.setOnClickListener(new OnClickListener(){
        public void onClick(View v){
            TabGroupActivity parentActivity = (TabGroupActivity)getParent();
            Intent intent = new Intent(getParent(), InventarioDimenticata.class);
            finish();
            parentActivity.startChildActivity("InventarioDimenticata",intent);
        }
    });
}
}

the problem is that, if i'm in "// primo accesso", the app close itself instead of going to InventarioNoPassword.class. It's strange because in my other projects it works.

The logcat tells: 12-07 12:43:46.756: W/InputManagerService(60): Starting input on non-focused client com.android.internal.view.IInputMethodClient$Stub$Proxy@406705e8 (uid=10037 pid=649)

Answer 1

it is better to finish your current running activity inside onPause() method. Do not use finish() method generally inside button click . Use finish method like this . it may solve your problem

    @Override
public void onPause() {
    super.onPause();
    finish();
}   

then in place of this

TabGroupActivity parentActivity = (TabGroupActivity)getParent();
        Intent intent = new Intent(getParent(), InventarioDimenticata.class);
        finish();
        parentActivity.startChildActivity("InventarioDimenticata",intent);

use this code it may help you

                Intent intent = new Intent();
            intent.setClass(getBaseContext(), InventarioDimenticata.class);
            startActivity(intent);              

Answer 2

i face similar kind of problem not sure its same but when we call finish(); before startActivity app goes in background.

so first call parentActivity.startChildActivity("Inventario",intent); then finish();

try and give me output please.

Answer 3

您同时使用正常意图和父项意图，请使用一种，因为您正在使用标签组活动

Answer 4

You need to extend your class to TabGroupActivity

  public class IntroInventario extends TabGroupActivity{

or else you need to create a object referencing to the TabGroupActivity class and then use the methods in that class ie your startChildActivity()

Hope this helps.