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View andlayout

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Transcript

  • 1. UI Widget
  • 2. Activity • Activity has Views or ViewGroups • ViewGroup has ViewGroups or Views • ViewGroup has ViewGroups or Views • recursive continue
  • 3. Layout • View Widget • ViewGroup Layout • Layout res/layout XML • onCreate setContentView
  • 4. View • TextView • EditText • ImageView • Button • ImageButton
  • 5. ViewGroup • LinearLayout • TableLayout • Gallery • TabHost
  • 6. URL • http://bit.ly/91DbG4 • http://bit.ly/8rBLYG • http://bit.ly/d5ieWu
  • 7. View • • TextView Button • width fill parent wrap content • height wrap content fill parent
  • 8. ( ) • View i/f • Button
  • 9. Button • Button button = (Button)findViewById(R.id.button);
  • 10. • Toast • setContentView setOnClickListener button.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { Toast.makeText(ListenActivity.this, "button clicked", Toast.LENGTH_LONG).show(); }});
  • 11. • • • • – Android
  • 12. Dialog • • View
  • 13. Dialog • AlertDialog • DatePickerDialog • ProgressDialog • TimePickerDialog • ZoomDialog
  • 14. Dialog • AlertDialog • http://bit.ly/bghNAh
  • 15. • Menu • onCreateOptionMenu • onPrepareOptionsMenu
  • 16. • (http://db.tt/HNf3bu) •
  • 17. • NotepadTutorial • http://bit.ly/c8jm70