SlidingPaneLayout：侧拉菜单

android.support.v4.widget.SlidingPaneLayout：侧拉菜单
(一)、布局要点
1.布局文件分为两大块，先写的作为侧滑布局，后写的为主布局文件，格式固定
2.布局文件中不需要添加layout_gravity属性

效果图

蓝色是侧拉块，被隐藏

示例代码

<?xml version="1.0" encoding="utf-8"?><!-- 给SlidingPaneLayout设置ID 代码控制 (openPane()打开)（closePane()关闭) 侧拉 --><android.support.v4.widget.SlidingPaneLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:id="@+id/scrollView"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context="com.example.lenovo.day26_slidingpanelayout.MainActivity">    <!-- 侧拉 -->    <LinearLayout        android:id="@+id/left"        android:layout_width="wrap_content"        android:layout_height="match_parent"        android:background="#00f7e7"        android:orientation="vertical">        <TextView            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="左侧拉菜单" />        <Button            android:id="@+id/button_menu"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="关闭侧拉" />    </LinearLayout>    <!-- 主界面 -->    <LinearLayout        android:id="@+id/linear"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:orientation="vertical">        <TextView            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="主界面" />        <Button            android:id="@+id/button_main"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="打开侧拉" />    </LinearLayout>

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(二)、Activity核心代码：
1.给SlidingPaneLayout设置滑动监听：paneLayout.setPanelSlideListener(new SlidingPaneLayout.PanelSlideListener(){});
2.关闭抽屉：paneLayout.closePane();
3.打开抽屉：paneLayout.openPane();

import android.support.v4.widget.SlidingPaneLayout;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.Button;public class MainActivity extends AppCompatActivity {    private Button left, main;    private SlidingPaneLayout slidingPaneLayout;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        slidingPaneLayout = (SlidingPaneLayout) findViewById(R.id.scrollView);        left = (Button) findViewById(R.id.button_menu);        left.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                // 监听 关闭侧拉                slidingPaneLayout.closePane();            }        });        main = (Button) findViewById(R.id.button_main);        main.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                // 监听 打开侧拉                slidingPaneLayout.openPane();            }        });    }    @Override    public void onBackPressed() {        // 手机回退时，退到主界面而不是退出程序        if (slidingPaneLayout.isOpen()) {            slidingPaneLayout.closePane();        } else {            super.onBackPressed();        }    }}