Question

from my application i’m trying to open another one, using this code:

package com.copag.lanceappli;

import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.ComponentName;
import android.content.Intent;


public class LanceAppli extends Activity {


    public void LanceAppli() {

           try
            {
                Intent intent = new Intent(Intent.ACTION_MAIN);
                intent.addCategory("android.intent.category.LAUNCHER");
                intent.setComponent(new ComponentName("test.test.test","test.test.test.MainActivity"));
                startActivity(intent);
            }
            catch( ActivityNotFoundException e)
            {
                e.printStackTrace();
            }
            catch( Exception e)
            {
                e.printStackTrace();
            }

    }
   public  void main (String [] args) 
   {
       LanceAppli();
   }    
}

what happens is that the application crushs… with no error message.

here is what i get:

http://pastie.org/5030644

any ideas?

Answer 1

The problem is that I’ve tried to use the intent directly on the constructor as David said. So I’ve changed it to:

package com.copag.lanceappli;

import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.ComponentName;
import android.content.Intent;
import android.os.Bundle;

public class LanceAppli extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        try {
            Intent intent = new Intent(Intent.ACTION_MAIN);
            intent.addCategory("android.intent.category.LAUNCHER");
            intent.setComponent(new ComponentName("test.test.test","test.test.test.MainActivity"));
            startActivity(intent);
        } catch( ActivityNotFoundException e) {
            e.printStackTrace();
        } catch( Exception e) {
            e.printStackTrace();
        }
    }
}

So I put the code into onCreate as it should be and it’s working!