我想以编程方式打开optionsMenu,而无需单击用户的菜单键。我该怎么做?
答案 0 :(得分:91)
或者只是致电Activity.openOptionsMenu()?
答案 1 :(得分:31)
显然,在onCreate中执行此操作会破坏app,因为Activity尚未附加到窗口。如果你这样做:
@Override
public void onAttachedToWindow() {
openOptionsMenu();
};
......它有效。
答案 2 :(得分:16)
对于使用 <tr ng-repeat="fixture in fixtures.fixtures ">
<td>{{fixture.date | cmdate:'MM/dd/yyyy'}}</td>
<td>{{teamName(fixture.homeTeam) }}</td>
<td> {{score(fixture.goalsHomeTeam)}}</td>
<td>-</td>
<td>{{score(fixture.goalsAwayTeam)}} </td>
<td>{{teamName(fixture.awayTeam)}}</td>
</tr>
的新Toolbar
类的开发人员,这就是它的完成方式:
Support Library
答案 3 :(得分:11)
将这行代码放在onResume()中,这应该有帮助!
new Handler().postDelayed(new Runnable() {
public void run() {
openOptionsMenu();
}
}, 1000);
答案 4 :(得分:8)
来自名为MainActivity的活动内的OnClickListener:
MainActivity.this.openOptionsMenu();
答案 5 :(得分:5)
如果使用AppCompatActivity
public class Sorting {
public static void sort(Comparable[] a) {
int N = a.length;
for (int i = 1; i < N; i++) {
for (int j = i; j > 0 && less(a[j], a[j - 1]); j--)
swap(a, j, j - 1);
}
}
private static void swap(Comparable[] a, int i, int j) {
Comparable t = a[i];
a[i] = a[j];
a[j] = t;
}
private static boolean less(Comparable v, Comparable w) {
return v.compareTo(w) < 0;
}
答案 6 :(得分:1)
两种方法:
Activity.getWindow().openPanel(Window.FEATURE_OPTIONS_PANEL, event);
event
参数是KeyEvent
,用于描述用于打开菜单的键,可以根据键盘的类型修改菜单的显示方式。
或者......通过模拟用户按下按钮:
IWindowManager wManager = IWindowManager.Stub.asInterface(ServiceManager.getService("window"));
KeyEvent kd = new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_SOFT_LEFT);
KeyEvent ku = new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_SOFT_LEFT);
wManager.injectKeyEvent(kd.isDown(), kd.getKeyCode(), kd.getRepeatCount(), kd.getDownTime(), kd.getEventTime(), true);
答案 7 :(得分:0)
如果您在视图中,可以编写
((Activity)getContext()).openOptionsMenu();
答案 8 :(得分:0)
经过长时间的研究和多次尝试,唯一的方法似乎是模拟KeyEvent
。这使选项菜单出现:
BaseInputConnection mInputConnection = new BaseInputConnection( findViewById(R.id.main_content), true);
KeyEvent kd = new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MENU);
KeyEvent ku = new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_MENU);
mInputConnection.sendKeyEvent(kd);
mInputConnection.sendKeyEvent(ku);
答案 9 :(得分:0)
对我来说,在onClick中声明toolbar.showOverflowMenu()
是行不通的。 openOptionsMenu()
也不适合我。而不是以下方式对我有效,
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
toolbar.showOverflowMenu();
}
}, 500);
答案 10 :(得分:0)
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
toolbar.setTitleTextColor(0xFFFFFFFF);
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
toolbar.showOverflowMenu();
}
}, 100);