Android DrawerLayout实现侧拉菜单

最新推荐文章于 2019-12-16 16:52:45 发布

原创最新推荐文章于 2019-12-16 16:52:45 发布 · 7.1k 阅读

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CC 4.0 BY-SA版权

这篇博客介绍了如何利用Android的DrawerLayout组件实现侧拉菜单功能，通过提供源码链接和布局文件配置示例，帮助读者理解并实践这一设计模式。

源码：http://download.youkuaiyun.com/detail/lm_zp/9562019

效果图

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.lenovo.mydrawerlayout.MainActivity">
<android.support.v4.widget.DrawerLayout
    android:layout_width="match_parent"
    android:id="@+id/drawer_layout"
    android:layout_height="match_parent">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        >
        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:popupTheme="@style/AppTheme.PopupOverlay" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="这是主界面"
            />
    </LinearLayout>
    <LinearLayout
        android:layout_width="300dp"
        android:layout_height="match_parent"
        android:layout_gravity="left"
        android:background="#f00"
        >
       <TextView
           android:id="@+id/t"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:text="这是侧拉界面"
           />
    </LinearLayout>
</android.support.v4.widget.DrawerLayout>

</LinearLayout>

注：DrawerLayout下有两个布局，DrawerLayout的第一个子元素是主要内容，即抽屉没有打开时显示的布局，DrawerLayout的第二个子元素是抽屉中的内容，即抽屉布局，layout_gravity为侧拉方向

因为用到Toolbar所以要把ActionBar替换了所以设置

values下设置styles.xml 为NoActionBar

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>
    <style name="AppTheme.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
    </style>
    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />

</resources>

MainActivity

package com.example.lenovo.mydrawerlayout;

import android.os.Bundle;
import android.support.design.widget.Snackbar;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //Toolbar代替ActionBar
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        // DrawerLayout
        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);

        //Toolbar上面最左边显示三杠图标监听DrawerLayout
        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
                this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
        drawer.setDrawerListener(toggle);
        toggle.syncState();
        //侧拉页面字体
        TextView t= (TextView) findViewById(R.id.t);
        t.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Snackbar.make(v, "侧拉页面", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });
    }
    @Override
    public void onBackPressed() {
        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        if (drawer.isDrawerOpen(GravityCompat.START)) {
            drawer.closeDrawer(GravityCompat.START);
        } else {
            super.onBackPressed();
        }
    }
}