<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:layout_width=“match_parent”
android:layout_height=“match_parent”
tools:context=".MainActivity"
android:id="@+id/draw"
>
<android.support.design.widget.NavigationView
android:layout_width=“wrap_content”
android:layout_height=“wrap_content”
android:id="@+id/nav"
app:headerLayout="@layout/head_image"
android:layout_gravity=“start”
app:menu="@menu/main"
></android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
MainActivity
package com.example.week2;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.NavigationView;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.AppCompatActivity;
import android.view.MenuItem;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.TextView;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
private ImageView img;
private TextView sy;
private TextView video;
private TextView mine;
private FragmentManager manager;
private ArrayList<Fragment> list;
private FrameLayout frameLayout;
private NavigationView nav;
private DrawerLayout draw;
private OneFragment oneFragment;
private TwoFragment twoFragment;
private ThreeFragment threeFragment;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//初始化数据
initDatas();
initView();
}
private void initDatas() {
oneFragment = new OneFragment();
twoFragment = new TwoFragment();
threeFragment = new ThreeFragment();
}
private void initView() {
video = (TextView) findViewById(R.id.video);
mine = (TextView) findViewById(R.id.mine);
manager = getSupportFragmentManager();
frameLayout = (FrameLayout) findViewById(R.id.frameLayout);
nav = (NavigationView) findViewById(R.id.nav);
draw = (DrawerLayout) findViewById(R.id.draw);
nav.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
switch (menuItem.getItemId()){
case R.id.first:
manager.beginTransaction().replace(R.id.frameLayout,oneFragment).commit();
draw.closeDrawers();
break;
case R.id.video:
manager.beginTransaction().replace(R.id.frameLayout,twoFragment).commit();
draw.closeDrawers();
break;
case R.id.mine:
manager.beginTransaction().replace(R.id.frameLayout,threeFragment).commit();
draw.closeDrawers();
break;
}
return false;
}
});
}
}
Menu文件