在android中使用导航抽屉创建基本活动答案

【问题标题】：creating base activity with navigation drawer in android在android中使用导航抽屉创建基本活动
【发布时间】：2014-03-26 05:51:56
【问题描述】：

我尝试关注this 的答案，主要思想是覆盖BaseActivity 中的setContentView，该活动将被所有活动扩展，因此只有BaseActivity 将拥有导航抽屉。

但是，在我尝试实现答案后，我的导航从未显示（即使在 BaseActivity 中）。这就是我所做的：

这是导航抽屉的 xml：

<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <!-- Framelayout to display Fragments -->

    <FrameLayout
        android:id="@+id/frame_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <!-- Listview to display slider menu -->

    <ListView
        android:id="@+id/list_slidermenu"
        android:layout_width="120dp"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:background="@color/list_background"
        android:choiceMode="singleChoice"
        android:divider="@color/list_divider"
        android:dividerHeight="1dp"
        android:listSelector="@drawable/list_selector" />

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

这是我覆盖的setContentView（在BaseActivity）：

@Override
    public void setContentView(int layoutResID) {
        // TODO Auto-generated method stub
        mDrawerLayout= (DrawerLayout) getLayoutInflater().inflate(R.layout.activity_main, null); // Your base layout here
        actContent= (FrameLayout) mDrawerLayout.findViewById(R.id.frame_container);
        //listLayout = (LinearLayout) mDrawerLayout.findViewById(R.id.listLayout);
        getLayoutInflater().inflate(layoutResID, actContent, true);
        //getLayoutInflater().inflate(layoutResID, listLayout, true);
        super.setContentView(layoutResID);
    }

这是我在BaseActivity 上的onCreate，请注意我使用getLayoutInflater().inflate 而不是setContentView：

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //setContentView(R.layout.activity_main);

        //getSupportActionBar().setDisplayShowHomeEnabled(false);
        //getSupportActionBar().setDisplayShowCustomEnabled(true);
        // enabling action bar app icon and behaving it as toggle button
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setHomeButtonEnabled(true);

        mTitle = mDrawerTitle = getTitle();

        // load slide menu items
        navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);

        // nav drawer icons from resources
        navMenuIcons = getResources()
                .obtainTypedArray(R.array.nav_drawer_icons);

        //mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        mDrawerLayout= (DrawerLayout) getLayoutInflater().inflate(R.layout.activity_main, null);
        //mDrawerList = (ListView) findViewById(R.id.list_slidermenu);
        mDrawerList = (ListView) mDrawerLayout.findViewById(R.id.list_slidermenu);

        navDrawerItems = new ArrayList<NavDrawerItem>();

        // adding nav drawer items to array
        // Home
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1)));
        // Find People
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));
        // Photos
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(2, -1)));
        // Communities, Will add a counter here
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons.getResourceId(3, -1)));
        // Pages
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[4], navMenuIcons.getResourceId(4, -1)));
        // What's hot, We  will add a counter here
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[5], navMenuIcons.getResourceId(5, -1)));


        // Recycle the typed array
        navMenuIcons.recycle();

        mDrawerList.setOnItemClickListener(new SlideMenuClickListener());

        // setting the nav drawer list adapter
        adapter = new NavDrawerListAdapter(getApplicationContext(),
                navDrawerItems);
        mDrawerList.setAdapter(adapter);

        mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
                R.drawable.ic_drawer, //nav menu toggle icon
                R.string.app_name, // nav drawer open - description for accessibility
                R.string.app_name // nav drawer close - description for accessibility
        ) {
            public void onDrawerClosed(View view) {
                getSupportActionBar().setTitle(mTitle);
                // calling onPrepareOptionsMenu() to show action bar icons
                invalidateOptionsMenu();
            }

            public void onDrawerOpened(View drawerView) {
                getSupportActionBar().setTitle(mDrawerTitle);
                // calling onPrepareOptionsMenu() to hide action bar icons
                invalidateOptionsMenu();
            }
        };
        mDrawerLayout.setDrawerListener(mDrawerToggle);

        if (savedInstanceState == null) {
            // on first time display view for first nav item
            displayView(0);
        }

    }

最后，我只需要像往常一样扩展BaseActivity 类和代码。

更新

根据答案，这是我的 WORKING 覆盖 setContentView ：

@Override
    public void setContentView(final int layoutResID) {
        // TODO Auto-generated method stub
        mDrawerLayout= (DrawerLayout) getLayoutInflater().inflate(R.layout.activity_main, null); // Your base layout here
        actContent= (FrameLayout) mDrawerLayout.findViewById(R.id.frame_container);

        getLayoutInflater().inflate(layoutResID, actContent, true);
        super.setContentView(mDrawerLayout);

        mTitle = mDrawerTitle = getTitle();

        // load slide menu items
        navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);

        // nav drawer icons from resources
        navMenuIcons = getResources()
                .obtainTypedArray(R.array.nav_drawer_icons);

        mDrawerList = (ListView) mDrawerLayout.findViewById(R.id.list_slidermenu);

        navDrawerItems = new ArrayList<NavDrawerItem>();

        // adding nav drawer items to array
        // Home
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1)));
        // Find People
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));
        // Photos
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(2, -1)));
        // Communities, Will add a counter here
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons.getResourceId(3, -1)));
        // Pages
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[4], navMenuIcons.getResourceId(4, -1)));
        // What's hot, We  will add a counter here
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[5], navMenuIcons.getResourceId(5, -1)));


        // Recycle the typed array
        navMenuIcons.recycle();

        mDrawerList.setOnItemClickListener(new SlideMenuClickListener());

        // setting the nav drawer list adapter
        adapter = new NavDrawerListAdapter(getApplicationContext(),
                navDrawerItems);
        mDrawerList.setAdapter(adapter);

        mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
                R.drawable.ic_drawer, //nav menu toggle icon
                R.string.app_name, // nav drawer open - description for accessibility
                R.string.app_name // nav drawer close - description for accessibility
        ) {
            public void onDrawerClosed(View view) {
                getSupportActionBar().setTitle(mTitle);
                // calling onPrepareOptionsMenu() to show action bar icons
                invalidateOptionsMenu();
            }

            public void onDrawerOpened(View drawerView) {
                getSupportActionBar().setTitle(mDrawerTitle);
                // calling onPrepareOptionsMenu() to hide action bar icons
                invalidateOptionsMenu();
            }
        };
        mDrawerLayout.setDrawerListener(mDrawerToggle);

        //super.setContentView(mDrawerLayout);
        /*getLayoutInflater().inflate(layoutResID, actContent, true);
        super.setContentView(mDrawerLayout);*/
    }

【问题讨论】：

只是你在扩展抽屉布局，但没有将它附加到Activity 视图层次结构。请注意，仅仅膨胀并不意味着添加
@GopalRao 对不起，你是什么意思？我应该在哪里附加它，在 BaseActivity 中还是在扩展 BaseActivity 的活动中？

标签： android navigation-drawer

【解决方案1】：

像这样更改您的setContentView()...

@Override
public void setContentView(int layoutResID) {
    mDrawerLayout = (DrawerLayout) getLayoutInflater().inflate(R.layout.activity_main, null); 
    actContent = (FrameLayout) mDrawerLayout.findViewById(R.id.frame_container);
    // set the drawer layout as main content view of Activity.
    setContentView(mDrawerLayout);
    // add layout of BaseActivities inside framelayout.i.e. frame_container
    getLayoutInflater().inflate(layoutResID, actContent, true);
}

【讨论】：

感谢您的帮助。我试过你的答案，但导航抽屉仍然没有显示在 BaseActivity 和扩展它的 Activity 中
@BlazeTama 您已经在BaseActivity 中初始化了drawerLayout，为什么还要在您的子活动中将它指向另一个drawerlaout 实例？我在你的子活动中看到了这个声明mDrawerLayout= (DrawerLayout) getLayoutInflater().inflate(R.layout.activity_main, null);
它不在我的子活动中，它在 BaseActivity 的 onCreate & setContentView
将所有与抽屉布局相关的操作移至setContentView() ...不要两次膨胀抽屉布局。你在 setContentView() 中充气一次，在onCreate()...
你的意思是我需要将 setDrawerListener & mDrawerToggle = new ActionBarDrawerToggle 从 onCreate 移动到 setContentView？

【解决方案2】：

我知道这已经得到解答，但如果有人遇到我的具体问题：

DrawerLayout 只能有 2 个孩子，content 和 navigationView。如果你想包含一个工具栏，你应该将它包装在另一个布局中或drawerlayout之外：

DrawerLayout
--LinearLayout (or any other layout)
----Toolbar
----Content
--NavigationView

或：

LinearLayout (or any other layout)
--Toolbar
--DrawerLayout
----Content
----NavigationView

【讨论】：