android 百度地图（具体请看百度开放平台）

compile files('libs/BaiduLBS_Android.jar')
compile 'com.android.support:appcompat-v7:26.+'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
testCompile 'junit:junit:4.12'

<uses-permission android:name="com.android.launcher.permission.READ_SETTINGS"/>
<!-- 这个权限用于进行网络定位 -->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<!-- 这个权限用于访问GPS定位 -->
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<!-- 用于访问wifi网络信息，wifi信息会用于进行网络定位 -->
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
<!-- 获取运营商信息，用于支持提供运营商信息相关的接口 -->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<!-- 用于读取手机当前的状态 -->
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<!-- 写入扩展存储，向扩展卡写入数据，用于写入离线定位数据 -->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<!-- 访问网络，网络定位需要上网 -->
<uses-permission android:name="android.permission.INTERNET"/>

//自己写    android:name=".application.MyApplication"

<application
android:name=".application.MyApplication"
android:allowBackup="true">

package net.bwie.baidumap.application;

import android.app.Application;

import com.baidu.mapapi.SDKInitializer;

public class MyApplication extends Application {

    @Override
    public void onCreate() {
        super.onCreate();

        //在使用SDK各组件之前初始化context信息，传入ApplicationContext
        //注意该方法要再setContentView方法之前实现
        SDKInitializer.initialize(getApplicationContext());
    }
}

package net.bwie.baidumap.activity;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

import net.bwie.baidumap.R;

public class BaseMapActivity extends AppCompatActivity {

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

package net.bwie.baidumap.activity;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;

import net.bwie.baidumap.R;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    protected Button mBaseMapBtn;

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

    @Override
    public void onClick(View view) {
        Intent intent = new Intent();
        if (view.getId() == R.id.base_map_btn) {
            intent.setClass(this, BaseMapActivity.class);
        }
        startActivity(intent);
    }

    private void initView() {
        mBaseMapBtn = (Button) findViewById(R.id.base_map_btn);
        mBaseMapBtn.setOnClickListener(MainActivity.this);
    }
}