Android and iOs tips

Question

Three fragment activities: MainFragmentActivity, Reports and ReportsType.

Reports is calling ReportsType.

There is a back button in ReportsType to go back with the following code:


public void goBackReport(View v)
    {
       finish(); // why MainFragmentActivity.java is called after finish()?
    }

But its always returning to MainFragmentActivity.java. But it should be Reports.java.

Answer 1 · 2013-04-09 08:58:38Z

Try this..


Intent i=new Intent(this,MainFragmentActivity.class)
startActivity(i);
finish();

Intent i=new Intent(this,Reports.class)
startActivity(i);
finish();

Intent i=new Intent(this,ReportsType.class)
startActivity(i);
finish();

When you call new Activity write finish() in last

Answer 2 · 2013-04-09 09:05:08Z

There's no concept of calling finish() on Fragment. Instead, you should keep stack of fragments when performing transactions. For example:


ft.addToBackStack(null);   // ft is FragmentTransaction

So, when you press back-key, the current activity (which holds multiple fragments) will load previous fragment rather than finishing itself.

Answer 3 · 2013-04-09 08:58:38Z

Try this..


Intent i=new Intent(this,MainFragmentActivity.class)
startActivity(i);
finish();

Intent i=new Intent(this,Reports.class)
startActivity(i);
finish();

Intent i=new Intent(this,ReportsType.class)
startActivity(i);
finish();

When you call new Activity write finish() in last

Answer 4 · 2013-04-09 09:05:08Z

There's no concept of calling finish() on Fragment. Instead, you should keep stack of fragments when performing transactions. For example:


ft.addToBackStack(null);   // ft is FragmentTransaction

So, when you press back-key, the current activity (which holds multiple fragments) will load previous fragment rather than finishing itself.

Android and iOs tips

Tuesday, April 9, 2013

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