侧滑菜单DrawerLayout+Toolbar结合使用，切换菜单

因为最近项目中用到侧滑菜单，于是就想到了谷歌提供的这个类网上看了看资料完成了侧滑菜单的功能，并写了一个demo记录下来，加深记忆和以后做类似功能时，直接看看笔记比住较方便

主布局文件分为两个一个是侧滑菜单覆盖toolbar一个是不覆盖toolbar具体看效果图，无赖不会上传gif

1.覆盖toolbar

2、不覆盖toolbar

2、menu

主布局文件（覆盖toolbar）

我们侧滑菜单的view是一个listview  所以listview的布局需要加

android:layout_gravity="start"属性

需要右侧滑的时候设置为end即可

不覆盖toolbar

menu文件

style文件

strings文件

    Demo
    关闭
    打开

color文件

    #3b7fd4
    #303F9F
    #FF4081
    #ffffff

fragment页面布局和类我就不贴了很简单

下面是主activity类

package com.winfo.wenjie.toolbar;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.content.ContextCompat;
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.Gravity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;

import java.lang.reflect.Field;

public class MainActivity extends AppCompatActivity implements AdapterView.OnItemClickListener {

    //侧滑菜单的布局
    private DrawerLayout drawerLayout;
    //标题栏
    private Toolbar toolbar;
    private String[] items = {"首页", "动态", "设置"};
    private int imgIds[] = {R.mipmap.boat , R.mipmap.elect , R.mipmap.anji};
    //侧滑菜单的内容项
    private ListView listView;
    private MyAdapter adapter;
    //切换的页面
    private Fragment1 f1;
    private Fragment2 f2;
    private Fragment3 f3;

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

        toolbar = (Toolbar) findViewById(R.id.toolbar);
        toolbar.setTitle("");//设置标题
        setSupportActionBar(toolbar);

        drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        listView = (ListView) findViewById(R.id.left_drawer);

        adapter = new MyAdapter();
        listView.setAdapter(adapter);
        listView.setOnItemClickListener(this);
        adapter.setSelectedItem(0);//默认选中第一个item

        f1 = new Fragment1();

        mContent = f1;//默认显示fragment1
        FragmentManager fm = getSupportFragmentManager();
        FragmentTransaction ft = fm.beginTransaction();
        ft.add(R.id.content_frame, f1);
        ft.commit();

        ActionBarDrawerToggle drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, toolbar, R.string.open, R.string.close) {
            @Override
            public void onDrawerOpened(View drawerView) {
                super.onDrawerOpened(drawerView);
            }

            @Override
            public void onDrawerClosed(View drawerView) {
                super.onDrawerClosed(drawerView);
            }
        };
        drawerToggle.syncState();//将左上角的图标和侧滑监听进行联动 达到动画效果显示
        drawerLayout.addDrawerListener(drawerToggle);//设置侧滑菜单的监听

    }


    /**
     * 修改显示的内容 不会重新加载
     **/
    private Fragment mContent;
    public void switchContent(Fragment to) {
        if (mContent != to) {
            FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
            if (!to.isAdded()) { // 先判断是否被add过
                transaction.hide(mContent).add(R.id.content_frame, to).commit(); // 隐藏当前的fragment，add下一个到Activity中
            } else {
                transaction.hide(mContent).show(to).commit(); // 隐藏当前的fragment，显示下一个
            }
            mContent = to;
        }
    }

    @Override
    public void onItemClick(AdapterView adapterView, View view, int position, long id) {
        switch (position) {
            case 0:
                if (f1 == null) {
                    f1 = new Fragment1();
                }
                switchContent(f1);
                adapter.setSelectedItem(0);
                break;
            case 1:
                if (f2 == null) {
                    f2 = new Fragment2();
                }
                switchContent(f2);
                adapter.setSelectedItem(1);
                break;
            case 2:
                if (f3 == null) {
                    f3 = new Fragment3();
                }
                switchContent(f3);
                adapter.setSelectedItem(2);
                break;
        }
        drawerLayout.closeDrawers();//自动关闭侧滑菜单
        adapter.notifyDataSetChanged();
    }

    private class MyAdapter extends BaseAdapter {

        private int selestedItemPos = -1;

        @Override
        public int getCount() {
            return items.length;
        }

        @Override
        public Object getItem(int position) {
            return items[position];
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        private void setSelectedItem(int positon) {
            this.selestedItemPos = positon;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            ViewHolder holder;
            if (convertView == null) {
                convertView = LayoutInflater.from(MainActivity.this).inflate(R.layout.item, parent, false);
                holder = new ViewHolder();
                holder.tv = (TextView) convertView.findViewById(R.id.id_tv);
                holder.icon = (ImageView)convertView.findViewById(R.id.id_icon);
                convertView.setTag(holder);
            } else {
                holder = (ViewHolder) convertView.getTag();
            }
            holder.tv.setText(items[position]);
            holder.icon.setImageResource(imgIds[position]);
            //选中设置字体为高亮显示
            if (selestedItemPos == position) {
                holder.tv.setTextColor(ContextCompat.getColor(MainActivity.this, R.color.colorAccent));
            } else {
                holder.tv.setTextColor(ContextCompat.getColor(MainActivity.this, R.color.white));
            }
            return convertView;
        }

        class ViewHolder {
            TextView tv;
            ImageView icon;
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_main, menu);
        setIconVisible(menu,true);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();
        if(id == R.id.action_edit){
            if(drawerLayout.isDrawerOpen(Gravity.START)){
                drawerLayout.closeDrawer(Gravity.START);
                return true;
            }else{
                drawerLayout.openDrawer(Gravity.START);
            }
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    /**
     * *显示溢出菜单图标
     **/
    public void setIconVisible(Menu menu, boolean visable){
        Field field;
        try {
            field = menu.getClass().getDeclaredField("mOptionalIconsVisible");
            field.setAccessible(true);
            field.set(menu, visable);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}