Baidu地图

权限：

<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"/>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.a98i.baidu.MainActivity">
   <Button
       android:id="@+id/base_map_btn"
       android:text="基础地图"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"/>

</RelativeLayout>

public class MainActivity extends Activity 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);
    }
}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_base_map"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.a98i.baidu.activity.BaseMapActivity">
    <com.baidu.mapapi.map.MapView
        android:id="@+id/map_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>
</LinearLayout>

package com.example.a98i.baidu.activity;

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

import com.example.a98i.baidu.R;

public class BaseMapActivity extends AppCompatActivity {

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

public class MyApplication extends Application{
    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());


    }
}