侧滑菜单DrawerLayout

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侧滑菜单。。。。。。。。。。。。。。

布局：<android.support.v4.widget.DrawerLayout    android:id="@+id/drawer"    android:layout_width="match_parent"    android:layout_height="match_parent"    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    tools:context="com.example.shenhuiran_1205.MainActivity">    <!--主页面的内容 ctrl+alt+l 格式化代码-->    <RelativeLayout        android:layout_height="match_parent"        android:layout_width="match_parent">    <Button        android:id="@+id/btnOpen"        android:layout_height="wrap_content"        android:layout_width="match_parent"        android:text="Hello!"/>    <!--用来放置 碎片的容器 -->    <FrameLayout android:id="@+id/frcontent"        android:layout_height="match_parent"        android:layout_width="match_parent"        android:layout_below="@+id/btnOpen">    </FrameLayout>    </RelativeLayout>        <!---菜单内容 android:layout_gravity="start":菜单在左边 end 菜单在右边 侧滑菜单一般不要超过 320dp -->    <RelativeLayout android:id="@+id/menu"            android:layout_height="match_parent"            android:layout_width="170dp"            android:background="#f00"            android:layout_gravity="start">        <ImageView android:id="@+id/img"            android:layout_height="wrap_content"            android:layout_width="wrap_content"            android:src="@mipmap/ic_launcher"/>        <ListView android:id="@+id/lv"            android:layout_height="match_parent"            android:layout_width="match_parent"            android:layout_below="@+id/img"/>    </RelativeLayout></android.support.v4.widget.DrawerLayout>===================================================================主要代码：

import android.support.v4.widget.DrawerLayout;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.util.Log;import android.view.View;import android.widget.AdapterView;import android.widget.ArrayAdapter;import android.widget.Button;import android.widget.ListView;import android.widget.RelativeLayout;import android.widget.Toast;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity {    private List<String> data=new ArrayList<>();    private DrawerLayout drawerLayout;    private RelativeLayout menu;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        drawerLayout = findViewById(R.id.drawer);        menu = findViewById(R.id.menu);        Button b=findViewById(R.id.btnOpen);        b.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                drawerLayout.openDrawer(menu);//打开菜单            }        });        ListView listView=findViewById(R.id.lv);        for(int i=0;i<20;i++){            data.add("item"+i);        }        ArrayAdapter<String> adapter=new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,data);        listView.setAdapter(adapter);        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {                //关闭菜单                drawerLayout.closeDrawer(menu);                //动态添加fragment                getSupportFragmentManager().beginTransaction().replace(R.id.frcontent,new MyFragment()).commit();            }        });        //添加监听事件        drawerLayout.setDrawerListener(new DrawerLayout.DrawerListener() {            @Override            public void onDrawerSlide(View drawerView, float slideOffset) {                Log.d("zzz","--"+slideOffset);            }            //            @Override            public void onDrawerOpened(View drawerView) {                Toast.makeText(MainActivity.this,"打开了！",Toast.LENGTH_SHORT).show();            }            @Override            public void onDrawerClosed(View drawerView) {                Toast.makeText(MainActivity.this,"关闭了！",Toast.LENGTH_SHORT).show();            }            /**             * 当抽屉滑动状态改变的时候被调用             * 状态值是STATE_IDLE（闲置--0）, STATE_DRAGGING（拖拽的--1）, STATE_SETTLING（固定--2）中之一。             * 抽屉打开的时候，点击抽屉，drawer的状态就会变成STATE_DRAGGING，然后变成STATE_IDLE             */            @Override            public void onDrawerStateChanged(int newState) {            }        });    }}=========================================================================

Fragment 类

import android.os.Bundle;import android.support.annotation.Nullable;import android.support.v4.app.Fragment;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;/** * Created by jane on 2017/12/8. */public class MyFragment extends Fragment {    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        return inflater.inflate(R.layout.fitem,container,false);    }}====================================================================

fitem.xml布局文件

<android.support.constraint.ConstraintLayout    xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="match_parent"    android:layout_height="match_parent"></android.support.constraint.ConstraintLayout>

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