Java ActionBar.setTitle示例

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    boolean bNewEventMode = true;
    // Check if this activity launched from internal activity or not
    if (getIntent().hasExtra(EXTRA_EDIT)) {
      bNewEventMode = false;
    }

    setContentView(R.layout.activity_edit);

    FragmentManager fm = getSupportFragmentManager();
    mEditFragment = (EditFragment) fm.findFragmentById(R.id.fragment_edit);

    final ActionBar actionBar = getSupportActionBar();
    // set defaults for logo & home up
    actionBar.setDisplayHomeAsUpEnabled(bNewEventMode ? false : true);
    actionBar.setDisplayUseLogoEnabled(bNewEventMode ? false : true);
    actionBar.setTitle(bNewEventMode ? R.string.label_create_event : R.string.label_edit_event);
  }