Question

i have a listview with 3 text. NV1 – NV2 – NV3. My problem is when I touch on NV1 the intent show me the layout of NV1. But with the others nothing happen. It just show me the same NV.

I create a 2 method for passing the info.

    private void adapter (PT1Activity a){
      this.a = a;
  }

private void showGame(int nivel){
    Intent intent = new Intent (PT1Activity.this, NV1.class);
    intent.putExtra("nivel2", nivel);
    startActivity(intent);
}

And a:

private PT1Activity a;

adapter(this);

       ltNvs.setOnItemClickListener(new OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> arg0, View arg1, int position,
                long arg3) {


             a.showGame(position);
        }
    });

What I have to do? Pass the information to the other NV2 Activity with a Bundle?? Or something similar?

Answer 1

Your showgame function should be something like this:

private void showGame(int nivel){
Intent intent;
switch (nivel){
    case 1:
      intent = new Intent (PT1Activity.this, NV1.class);
      intent.putExtra("nivel1", nivel);
      break;
    case 2:
      intent = new Intent (PT1Activity.this, NV2.class);
      intent.putExtra("nivel2", nivel);
      break;
    case 3:
      intent = new Intent (PT1Activity.this, NV3.class);
      intent.putExtra("nivel3", nivel);
      break;
    default:
      intent = new Intent();
   }

startActivity(intent);
}

However, this assumes all your classes are in the same package. If you want to launch an activity in a different package, the Intent(this, yourclass.Class) constructor won’t work. Instead, try something like this:

Intent intent = new Intent();
intent.setComponent(ComponentName.unflattenFromString("your.other.package/your.other.package.your_other_class_name"));
startActivity(intent);

Note: your_other_class_name would be something like NV1, not NV1.class.