1.菜单栏的使用1
public boolean onCreateOptionsMenu(Menu menu) {
MenuItem menuitem = menu.add(100,100,1,"我弟弟");
//menu.add(groupId, itemId, order, title);
menuitem.setTitle("我不知道啊");
return true;
}
public boolean onOptionsItemSelected(MenuItem item) {
// TODO Auto-generated method stub
switch (item.getItemId()) {
case 100:
// TODO Auto-generated method stub
break;
}
return super.onOptionsItemSelected(item);
}
2.菜单栏的使用2
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
Xml:
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@+id/action_settings"
android:icon="@drawable/ic_launcher"
android:orderInCategory="100"
android:showAsAction="ifRoom|withText" //显示在bar
android:title="设置">
<menu>
<item
android:id="@+id/s1"
android:title="设置一">
</item>
<item
android:id="@+id/s2"
android:title="设置二">
</item>
</menu>
</item>
<item
android:id="@+id/action_settings"
android:orderInCategory="101"
android:title="用户"/>
</menu>
3.菜单中的上下文菜单(API level 11)
(多使用在ListView、GridView)
1.floating context menu
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listview = (ListView) this.findViewById(R.id.listview);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, getData());
listview.setAdapter(adapter);
// 给listView注册上下文菜单
registerForContextMenu(listview);
}
private List<String> getData() {
List<String> list = new ArrayList<String>();
for (int i = 0; i < 7; i++) {
list.add("jack" + i);
}
return list;
}
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
// 加载上下文中的菜单
super.onCreateContextMenu(menu, v, menuInfo);
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main_item, menu);
}
public boolean onContextItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.awe:
//To do
break;
}
return super.onContextItemSelected(item);
}
4.
public class MainActivity extends Activity {
private ListView listview;
private Button button;
private ActionMode actionMode;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = (Button) this.findViewById(R.id.but1);
button.setOnLongClickListener(new OnLongClickListener() {
@SuppressLint("NewApi")
@Override
public boolean onLongClick(View v) {
if (actionMode != null) {
return false;
}
actionMode = startActionMode(actionCallback);
v.setSelected(true);
return true;
}
});
}
Private ActionMode.Callback actionCallback = new ActionMode.Callback() {
@Override
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
switch (item.getItemId()) {
case R.id.awe:
Toast.makeText(getApplicationContext(), "text", 1).show();
break;
default:
break;
}
return false;
}
@Override
// 加载菜单 从xml中
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main_item, menu);
return true;
}
@Override
public void onDestroyActionMode(ActionMode mode) {
actionMode = null;
}
@Override
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
// TODO Auto-generated method stub
return false;
}
};
}