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Android 学习之Drawerlayout写侧滑菜单
我们经常利用SlidingMenu来实现侧滑菜单，谷歌推出的DrawerLayout也可以实现侧滑菜单，完全可以替代SlidingMenu，如下图所示都是用SlidingMenu开发的实例。
1、项目结构
JAVA文件中首先是一个主界面的Activity-——MainActivity,然后是一个继承与Fragment的类——ContentFragment，
布局文件中，activity_main对应于主布局文件，fragment_content对应于Fragment的布局。
2、MainActivity.java
import java.util.ArrayList;
import android.net.Uri;
import android.os.Bundle;
import android.R.anim;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.content.Intent;
import android.content.res.Configuration;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.widget.DrawerLayout;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
public class MainActivity extends Activity implements OnItemClickListener {
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private LinearLayout mlayout;
private ArrayList<String> menuLists;
private ArrayAdapter<String> adapter;
private ActionBarDrawerToggle mDrawerToggle;
private String mTitle;
private ImageView imageView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTitle = (String) getTitle();
imageView = (ImageView) findViewById(R.id.image);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.left_drawer);
mlayout = (LinearLayout) findViewById(R.id.mlayout);
menuLists = new ArrayList<String>();
for (int i = 0; i < 5; i++)
menuLists.add("菜单0" + i);
adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, menuLists);
mDrawerList.setAdapter(adapter);
mDrawerList.setOnItemClickListener(this);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_drawer, R.string.drawer_open,
R.string.drawer_close) {
@Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
getActionBar().setTitle("请选择");
invalidateOptionsMenu(); // Call onPrepareOptionsMenu()
}
@Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
getActionBar().setTitle(mTitle);
invalidateOptionsMenu();
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
//开启ActionBar的App Icon功能
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
boolean isDrawerOpen = mDrawerLayout.isDrawerOpen(mlayout);
menu.findItem(R.id.action_websearch).setVisible(!isDrawerOpen);
return super.onPrepareOptionsMenu(menu);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
//将ActionBar上的图标与Drawer结合起来
if (mDrawerToggle.onOptionsItemSelected(item)){
return true;
}
switch (item.getItemId()) {
case R.id.action_websearch:
Intent intent = new Intent();
intent.setAction("android.intent.action.VIEW");
Uri uri = Uri.parse("http://www.csdn.net");
intent.setData(uri);
startActivity(intent);
break;
}
return super.onOptionsItemSelected(item);
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
//需要将ActionDrawerToggle与DrawerLayout的状态同步
//将ActionBarDrawerToggle中的drawer图标，设置为ActionBar中的Home-Button的Icon
mDrawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
mDrawerToggle.onConfigurationChanged(newConfig);
}
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position,
long arg3) {
// 在FrameLayout中动态插入一个Fragment
Fragment contentFragment = new ContentFragment();
Bundle args = new Bundle();
args.putString("text", menuLists.get(position));
contentFragment.setArguments(args);
FragmentManager fm = getFragmentManager();
fm.beginTransaction().replace(R.id.content_frame, contentFragment)
.commit();
mDrawerLayout.closeDrawer(mlayout);
}
}
3、ContentFragment.java
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
public class ContentFragment extends Fragment {
private TextView textView;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_content, container, false);
textView = (TextView) view.findViewById(R.id.textView);
String text = getArguments().getString("text");
textView.setText(text);
return view;
}
}4、activity_main.xml
<span style="font-weight: normal;"><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" >
<!-- The main content view -->
<FrameLayout
android:id="@+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</FrameLayout>
<!-- The navigation view -->
<LinearLayout
android:layout_width="240dp"
android:layout_gravity="start"
android:id="@+id/mlayout"
android:background="#333fff"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="240dp"
android:layout_height="200dp"
android:background="@drawable/bg"
android:layout_gravity="start">
<ImageView
android:id="@+id/image"
android:src="@drawable/tu"
android:layout_gravity="start"
android:layout_width="50dp"
android:layout_height="50dp" />
</LinearLayout>
<ListView
android:id="@+id/left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#ffffcc"
android:choiceMode="singleChoice"
android:divider="@android:color/transparent"
android:dividerHeight="0dp" >
</ListView>
</LinearLayout>
</android.support.v4.widget.DrawerLayout></span>5、fragment_content.xml
<span style="font-weight: normal;"><?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:orientation="vertical" >
<TextView
android:id="@+id/textView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="25sp" />
</LinearLayout></span>6、menu（main.xml)
<span style="font-weight: normal;"><menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@+id/action_websearch"
android:icon="@drawable/action_search"
android:showAsAction="ifRoom|withText"
android:title="webSearch"/>
</menu></span>
7、效果图
源码下载地址点此下载
