两侧都有NavigationView

Question

我需要用不同的菜单打开两侧的导航视图.另外我需要更改导航图标(目前有三条水平线).如果我可以通过单独的按钮单击打开nav_view并且na_view2这些按钮在我的工具栏中可用,或者我需要知道如何在两侧设置单独的图标,这样会更好.

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:openDrawer="start">

    <include
        layout="@layout/app_bar_main"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <android.support.design.widget.NavigationView
        android:id="@+id/nav_view"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:fitsSystemWindows="true"
        app:headerLayout="@layout/nav_header_main"
        app:menu="@menu/activity_main_drawer" />

    <android.support.design.widget.NavigationView
        android:id="@+id/nav_view2"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="end"
        android:fitsSystemWindows="true"
        app:headerLayout="@layout/nav_header_main"
        app:menu="@menu/activity_main_drawer1" />

</android.support.v4.widget.DrawerLayout>

任何帮助都会非常值得一提.

Answer 1

好的,我找到了答案.我们可以通过以下行从工具栏中获取按钮,

Button btnStart = (Button) findViewById(R.id.btnStart);
Button btnEnd = (Button) findViewById(R.id.btnEnd);

点击开始按钮,我们可以通过跟随听众打开并隐藏左抽屉,

btnStart.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        if (drawer.isDrawerOpen(GravityCompat.START))
            drawer.closeDrawer(GravityCompat.START);
        else drawer.openDrawer(GravityCompat.START);
    }
});

点击结束按钮,我们可以通过跟随听众打开并隐藏右抽屉,

btnEnd.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        if (drawer.isDrawerOpen(GravityCompat.END))
            drawer.closeDrawer(GravityCompat.END);
        else drawer.openDrawer(GravityCompat.END);
    }
});

而我们的onBackPressed方法将是

public void onBackPressed() {
    DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
    if (drawer.isDrawerOpen(GravityCompat.START)) {
        drawer.closeDrawer(GravityCompat.START);
    } else if (drawer.isDrawerOpen(GravityCompat.END)) {
        drawer.closeDrawer(GravityCompat.END);
    } else {
        super.onBackPressed();
    }
}

如果抽屉处于打开状态,这也用于关闭抽屉.

有关更多信息,请参阅我的博客http://v4all123.blogspot.in/2016/03/simple-example-of-navigation-view-on.html