62、常规控件（5）Navigation View –美观的侧滑视图

1、main_layout.xml

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

     <include layout="@layout/activity_main"/>
     <!--
         android:fitsSystemWindows="true|false":适合系统窗口
     -->
     <android.support.design.widget.NavigationView
         android:id="@+id/navigetion_view"
         android:layout_width="wrap_content"
         android:layout_height="match_parent"
         android:layout_gravity="left"
         android:fitsSystemWindows="true"
         app:headerLayout="@layout/head_view"
         app:menu="@menu/menu_main">
     </android.support.design.widget.NavigationView>

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

2、@layout/head_view  侧滑布局文件

 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:gravity="center"
     android:orientation="vertical">
     <ImageView
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:src="@drawable/ic_launcher"/>
 </LinearLayout>

3、MainActivity.java

 package com.example.com.designdemo;

 import android.os.Bundle;
 import android.support.design.widget.TabLayout;
 import android.support.v4.app.Fragment;
 import android.support.v4.view.ViewPager;
 import android.support.v7.app.AppCompatActivity;
 import java.util.ArrayList;
 import java.util.List;

 public class MainActivity extends AppCompatActivity {

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

         TabLayout tabs = (TabLayout) this.findViewById(R.id.tabs);

         List<String> titles = new ArrayList<String>();
         List<Fragment> fragments = new ArrayList<Fragment>();
         for (int i=0; i<10; i++) {
             String title = "Tab"+ (i+1);
             tabs.addTab(tabs.newTab().setText(title));
             titles.add(title);

             Fragment fragment = new TestOneFragment(title);
             fragments.add(fragment);
         }

         ViewPager viewpager = (ViewPager) this.findViewById(R.id.viewpager);
         TestOneAdapter mAdapter = new TestOneAdapter(getSupportFragmentManager(), titles, fragments);
         viewpager.setAdapter(mAdapter);
         tabs.setupWithViewPager(viewpager);
         tabs.setTabsFromPagerAdapter(mAdapter);

         // 控制侧滑菜单的显示和隐藏
         //DrawerLayout drawer_layout = (DrawerLayout) this.findViewById(R.id.drawer_layout);
         //drawer_layout.closeDrawer();
     }

 }