java - 点击按钮调用项目

Question

当您单击按钮时。我想要调用并执行一个项目

我的 xml 文件:

<menu xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android">

<group android:checkableBehavior="single">
    <item android:title="Item"
        android:id="@+id/nav1" />

    <item android:title="Item"
        android:id="@+id/nav2"/>

    </group>
 </menu>

我的简单菜单项:

    @Override
    public boolean onNavigationItemSelected(MenuItem item) {
    int id = item.getItemId();

    if (id == R.id.nav1) {


    } else if (id == R.id.nav2) {


    }

我的按钮:

 final Button button1 = (Button) findViewById(R.id.mybutton);
     button1.setOnClickListener(new View.OnClickListener() {
         public void onClick(View v) {
           //when click on this button i want executed item with id nave1
         }
     });

当点击按钮(mybutton)时必须调用item并执行它

Answer 1

使用NavigationView.setCheckedItem()

final Button button1 = (Button) findViewById(R.id.mybutton);
button1.setOnClickListener(new View.OnClickListener() {
    public void onClick(View v) {
        navigationView.setCheckedItem(R.id.nav1);
    }
});

或者自己调用onNavigationItemSelected()。

final Button button1 = (Button) findViewById(R.id.mybutton);
button1.setOnClickListener(new View.OnClickListener() {
    public void onClick(View v) {
        onNavigationItemSelected(navigationView.getMenu().findItem(R.id.nav1));
    }
});