具有向后兼容性android的导航抽屉

Question

我有一个应用程序，它有四个不同的活动。现在我想在应用程序中添加一个导航抽屉来导航这些活动。任何人都可以为不同活动的导航抽屉提供示例或教程，并具有回词兼容性。我已经看过片段示例，但我需要活动示例。

Answer 1

您需要使用支持库中的 appcompact。

您的活动需要扩展ActionBarActivity。

在你的活动中

 public class MainActivity extends ActionBarActivity {

导入

 import android.support.v7.app.ActionBarActivity;

用getSupportActionbar()代替getActionBar()

使用Them.AppCompact

或者使用 ActionBarSherlock 库。

https://stackoverflow.com/questions/20071004/add-icon-in-drawerlist-by-actionbarsherlock/20077469#20077469

例子：

MainActivity.java

public class MainActivity extends ActionBarActivity {

    // Fields -----------------------------------------------------------------
    private DrawerLayout drawerLayout;
    private ListView drawerList;
    private ActionBarDrawerToggle drawerToggle;
    private MenuListAdapter menuAdapter;
    private int[] icons;
    private Fragment fragment1;
    private Fragment fragment2;
    private Fragment fragment3;
    private CharSequence drawerTitle;
    private CharSequence title;
    private final String[] titles = new String[]{
            "Title Fragment #1",
            "Title Fragment #2",
            "Title Fragment #3"
    };
    private final String[] subtitles = new String[]{
            "Subtitle Fragment #1",
            "Subtitle Fragment #2",
            "Subtitle Fragment #3"
    };

    // Lifecycle Callbacks ----------------------------------------------------
    @Override
    protected void onCreate(Bundle savedInstanceState) {

        // Base implemenation
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // Instantiate the fragments
        fragment1 = new Fragment1();
        fragment2 = new Fragment2();
        fragment3 = new Fragment3();

        // Get the title from this activity
        title = drawerTitle = getTitle();

        // Get the icons from the drawables folder
        icons = new int[]{
                R.drawable.action_about,
                R.drawable.action_settings,
                R.drawable.collections_cloud
        };

        // Get the drawer layout from the XML file and the ListView inside it
        drawerLayout = (DrawerLayout)findViewById(R.id.drawer_layout);
        drawerList = (ListView)findViewById(R.id.listview_drawer);

        // Set a custom shadow over that overlays the main content
        // when the drawer opens
        drawerLayout.setDrawerShadow(
                R.drawable.drawer_shadow, GravityCompat.START);

        // Pass the string arrays to the MenuListAdapter, set the drawer
        // list adapter to it and set up its click listener
        menuAdapter = new MenuListAdapter(
                MainActivity.this, titles, subtitles, icons);
        drawerList.setAdapter(menuAdapter);
        drawerList.setOnItemClickListener(new DrawerItemClickListener());

        // Enable the action bar to have up navigation
        getSupportActionBar().setHomeButtonEnabled(true);
        //getSupportActionBar().setDisplayHomeAsUpEnabled(true);

        // Allow the the action bar to toggle the drawer
        drawerToggle = new ActionBarDrawerToggle(
                this,
                drawerLayout,
                R.drawable.ic_drawer,
                R.string.drawer_open,
                R.string.drawer_close){

            public void onDrawerClosed(View view){
                super.onDrawerClosed(view);
            }
            public void onDrawerOpened(View view){
                getSupportActionBar().setTitle(drawerTitle);
                super.onDrawerOpened(view);
            }
        };
        drawerLayout.setDrawerListener(drawerToggle);

        // If this is the first time opening this activity,
        // start with loading fragment #1
        if (savedInstanceState == null){
            selectItem(0);
        }       

    }

    // Methods ----------------------------------------------------------------
    @Override
    public boolean onOptionsItemSelected(MenuItem item){

        // If the user has pressed the action bar icon
        if (item.getItemId() == android.R.id.home){

            // If the drawer is open, close it; vice versa
            if (drawerLayout.isDrawerOpen(drawerList)){
                drawerLayout.closeDrawer(drawerList);
            } else {
                drawerLayout.openDrawer(drawerList);
            }
        }

        // Finish by letting the super class do the rest
        return super.onOptionsItemSelected(item);

    }
    @Override
    protected void onPostCreate(Bundle savedInstanceState){

        // Call the super implementation and synchronize the drawer
        super.onPostCreate(savedInstanceState);
        drawerToggle.syncState();

    }
    @Override
    public void onConfigurationChanged(Configuration newConfig){

        // Call the super implemenation on this activity
        // and the drawer toggle object
        super.onConfigurationChanged(newConfig);
        drawerToggle.onConfigurationChanged(newConfig);

    }
    private void selectItem(int position){

        // Create a new fragment transaction and start it
        FragmentTransaction fragTran = getSupportFragmentManager()
                                       .beginTransaction();

        // Locate the position selected replace the content view
        // with the fragment of the number selected
        switch (position){
            case 0:{
                fragTran.replace(R.id.content_frame, fragment1);
                break;
            }
            case 1:{
                fragTran.replace(R.id.content_frame, fragment2);
                break;
            }
            case 2:{
                fragTran.replace(R.id.content_frame, fragment3);
                break;
            }
        }

        // Commit the transaction and close the drawer
        fragTran.commit();
        drawerList.setItemChecked(position, true);
        drawerLayout.closeDrawer(drawerList);

    }
    public void setTitle(CharSequence title){

        // Save the passed in title and set the action bar title
        this.title = title;
        getSupportActionBar().setTitle(title);

    }

    // Classes ----------------------------------------------------------------
    private class DrawerItemClickListener 
    implements ListView.OnItemClickListener{

        @Override
        public void onItemClick(
                AdapterView<?> parent, 
                View view, 
                int position,
                long id) {

            // When clicked, select open the appropriate fragment
            selectItem(position);

        }

    }

}

activity_main.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 
        android:id="@+id/content_frame"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>
    <ListView 
        android:id="@+id/listview_drawer"
        android:layout_width="240dp"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:background="#111"
        android:choiceMode="singleChoice"
        android:divider="@android:color/transparent"
        android:dividerHeight="0dp"/>

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

public class MenuListAdapter extends BaseAdapter {

    // Fields -----------------------------------------------------------------
    private Context mcontext;
    private String[] titles;
    private String[] subtitles;
    private int[] icons;
    private LayoutInflater inflater;

    // Constructor ------------------------------------------------------------
    public MenuListAdapter(
            Context context, 
            String[] titles, 
            String[] subtitles,
            int[] icons){
        mcontext = context;
        this.titles = titles;
        this.subtitles = subtitles;
        this.icons = icons;
        inflater = (LayoutInflater)mcontext.getSystemService(
                Context.LAYOUT_INFLATER_SERVICE);
    }

    // Accessors --------------------------------------------------------------
    @Override
    public int getCount(){
        return titles.length;
    }
    @Override
    public Object getItem(int position){
        return titles[position];
    }
    @Override
    public long getItemId(int position){
        return position;
    }

    // Methods ----------------------------------------------------------------
    public View getView(int position, View convertView, ViewGroup parent){

        ViewHolder viewHolder;

        // Only inflate the view if convertView is null
        if (convertView == null){
            viewHolder = new ViewHolder();
            if(inflater!=null)
            {
            convertView = inflater.inflate(
                    R.layout.drawer_list_item, parent, false);
            viewHolder.txtTitle = (TextView)convertView.findViewById(
                    R.id.title);
            viewHolder.txtSubtitle = (TextView)convertView.findViewById(
                    R.id.subtitle);
            viewHolder.imgIcon = (ImageView)convertView.findViewById(
                    R.id.icon);

            // This is the first time this view has been inflated,
            // so store the view holder in its tag fields
            convertView.setTag(viewHolder);
            }
            else
            {
                Log.i("........",""+null);
            }
        } else {
            viewHolder = (ViewHolder)convertView.getTag();
        }

        // Set the views fields as needed
        viewHolder.txtTitle.setText(titles[position]);
        viewHolder.txtSubtitle.setText(subtitles[position]);
        viewHolder.imgIcon.setImageResource(icons[position]);

        return convertView;
    }

    // Classes ----------------------------------------------------------------
    static class ViewHolder {
        TextView txtTitle;
        TextView txtSubtitle;
        ImageView imgIcon;
    }

}

drawr_list_item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/darker_gray"
    android:orientation="horizontal"
    style="?attr/dropdownListPreferredItemHeight" >

    <ImageView
        android:id="@+id/icon"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:adjustViewBounds="true"/>

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:gravity="center_vertical|left"
        android:orientation="vertical">

        <TextView
            android:id="@+id/title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:ellipsize="end"
            android:singleLine="true"
            style="?attr/spinnerDropDownItemStyle"/>
        <TextView 
            android:id="@+id/subtitle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:ellipsize="end"
            android:singleLine="true"
            style="?attr/spinnerDropDownItemStyle"/>

    </LinearLayout>    

</LinearLayout>

fragment1.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <ListView
        android:id="@+id/listView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true" >

    </ListView>

</RelativeLayout>

fragment2.xml

<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:text="@string/Fragment2"/>

</RelativeLayout>

fragment3.xml

<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:text="@string/Fragment3"/>

</RelativeLayout>

Fragment1.java

public class Fragment1 extends Fragment {
    String[] titles={"A","B","C"};
    @Override
    public View onCreateView(
            LayoutInflater inflater, 
            ViewGroup container, 
            Bundle savedInstanceState){
        View rootView = inflater.inflate(R.layout.fragment1, container, false);
        ListView lv = (ListView) rootView.findViewById(R.id.listView1);
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),android.R.layout.simple_list_item_1,titles);
        lv.setAdapter(adapter);
        return rootView;
    }   
}

Fragment2.java

public class Fragment2 extends Fragment {
    @Override
    public View onCreateView(
            LayoutInflater inflater,
            ViewGroup container,
            Bundle savedInstanceState){
        View rootView = inflater.inflate(R.layout.fragment2, container, false);
        return rootView;
    }
}

Fragment3.java

public class Fragment3 extends Fragment {
    @Override
    public View onCreateView(
            LayoutInflater inflater,
            ViewGroup container,
            Bundle savedInstanceState){
        View rootView = inflater.inflate(R.layout.fragment3, container, false);
        return rootView;
    }
}

在清单中添加主题

android:theme="@style/Theme.AppCompat"

捕捉

Answer 2

新版本的 v4 支持库（第 13 版）包含对导航抽屉模式的支持。
查看以下Navigation Drawer 的教程链接，它提供了Navigation Drawer 的兼容性库以及其中的实现。

1) Sherlock Navigation Drawer
2) NavDrawerExampleAppCompat-v7
3) Navigation Drawer in Android
4)Create Navigation Drawer

希望这会对您有所帮助。

Answer 3

Navigation Drawer 在 using DrawerLayout 中实现，如果不使用任何外部库，可在 Android 支持包中使用。所以它可以使用大约 API 级别 4 其中 Donut(1.6)。使用此链接了解更多信息DrawerLayout