Question

当我从菜单栏中单击选项菜单项“设置”时，我想导航至另一个Activity。实际没有任何反应。我已经检查了此处发布的类似问题，但我可以理解为什么这不适用于选项菜单。参见下面的代码：

Can't go to a new activity from selected option from option menu

<item
    android:id="@+id/mySettings"

    android:title="@string/action_settings" />

<item
    android:id="@+id/logout"

    android:title="log out" />

代码：

public class Dashboard extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_dashboard);
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.app_bar_menu,menu);
        return super.onCreateOptionsMenu(menu);
    }


    public void openConfigure(){
        Intent intent = new Intent(this,Configure.class);
        this.startActivity(intent);
    }
    public boolean onContextItemSelected(MenuItem item) {
        switch (item.getItemId()){
            case R.id.mySettings:
                openConfigure();

                break;

            default:
                return super.onOptionsItemSelected(item);

        }


        return true;
    }

Answer 1

使用onOptionsItemSelected代替onContextItemSelected，因为您使用的是OptionMenu而不是ContextMenu。

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()){
        case R.id.mySettings:
            openConfigure();
            break;
    }
    return super.onOptionsItemSelected(item);
}

Answer 2

要选择一个选项菜单项，您必须重写onOptionItemSelected（）：尝试下面的代码

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()){
        case R.id.mySettings:
            openConfigure();
            break;
    }
    return true;
}

选项菜单选项未定向到另一个活动

2 个答案: