1、Toast 收到某一事件时 将信息在屏幕上显示一段时间后消失
Toast.makeText(this, getResources().getString(R.string.hello),Toast.LENGTH_LONG).show();
2、Intent 意图的跳转
Intent intent1 = new Intent(this, AccountAddActivity.class);
3、获取上下文菜单
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { // MenuInfalter类用于从Menu资源文件中获取菜单 MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.context_menu_main, menu); super.onCreateContextMenu(menu, v, menuInfo); }
4、获取选项菜单
@Override public boolean onCreateOptionsMenu(Menu menu) { // MenuInfalter类用于从Menu资源文件中获取菜单 MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.options_menu, menu); return super.onCreateOptionsMenu(menu); }
5、响应上下文菜单
public boolean onMenuItemSelected(int featureId, MenuItem item) { // 获取上下文菜单所关联的数据项信息 AdapterContextMenuInfo info = (AdapterContextMenuInfo) item .getMenuInfo();
switch (item.getItemId()) { case R.id.menu_edit:
6、响应选项菜单
public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) {