百度地图3.1.0(三)图层展示

基于之前的文章 百度地图3.1.0(一)Hello BaiduMap(http://www.cnblogs.com/creasylai19/p/3921053.html) 添加的功能

主要是添加了三个Button，代码如下

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.example.testbaidu_v_3_1.MainActivity" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

        <Button
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:onClick="openNormalMode"
            android:text="普通地图" />

        <Button
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:onClick="openSatelliteMode"
            android:text="卫星地图" />

        <Button
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:onClick="openTraffic"
            android:text="交通图" />
    </LinearLayout>

    <com.baidu.mapapi.map.MapView
        android:id="@+id/bmapView"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:clickable="true" />

</LinearLayout>

MainActivity改成：

package com.example.testbaidu_v_3_1;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.widget.Toast;

import com.baidu.mapapi.SDKInitializer;
import com.baidu.mapapi.map.BaiduMap;
import com.baidu.mapapi.map.MapView;

public class MainActivity extends ActionBarActivity {

    private MapView mMapView = null;
    private SDKReceiver mReceiver;
    private BaiduMap mBaiduMap;
    private boolean trafficStatus = false;

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // 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());
        setContentView(R.layout.activity_main);
        // 获取地图控件引用
        mMapView = (MapView) findViewById(R.id.bmapView);
        mBaiduMap = mMapView.getMap();

        // 看baidu的Demo，发现它注册这个广播，用来监听SDKInitializer的初始化
        IntentFilter iFilter = new IntentFilter();
        iFilter.addAction(SDKInitializer.SDK_BROADTCAST_ACTION_STRING_PERMISSION_CHECK_ERROR);
        iFilter.addAction(SDKInitializer.SDK_BROADCAST_ACTION_STRING_NETWORK_ERROR);
        mReceiver = new SDKReceiver();
        registerReceiver(mReceiver, iFilter);
    }

    public void openNormalMode(View mView) {
        mBaiduMap.setMapType(BaiduMap.MAP_TYPE_NORMAL);
    }

    public void openSatelliteMode(View mView) {
        mBaiduMap.setMapType(BaiduMap.MAP_TYPE_SATELLITE);
    }

    public void openTraffic(View mView) {
        if (trafficStatus) {
            mBaiduMap.setTrafficEnabled(false);
            trafficStatus = false;
        } else {
            mBaiduMap.setTrafficEnabled(true);
            trafficStatus = true;
        }
    }

    protected void onDestroy() {
        super.onDestroy();
        // 在activity执行onDestroy时执行mMapView.onDestroy()，实现地图生命周期管理
        mMapView.onDestroy();
        unregisterReceiver(mReceiver);
    }

    @Override
    protected void onResume() {
        super.onResume();
        // 在activity执行onResume时执行mMapView. onResume ()，实现地图生命周期管理
        mMapView.onResume();
    }

    @Override
    protected void onPause() {
        super.onPause();
        // 在activity执行onPause时执行mMapView. onPause ()，实现地图生命周期管理
        mMapView.onPause();
    }

    public class SDKReceiver extends BroadcastReceiver {
        public void onReceive(Context context, Intent intent) {
            String s = intent.getAction();
            if (s.equals(SDKInitializer.SDK_BROADTCAST_ACTION_STRING_PERMISSION_CHECK_ERROR)) {
                Toast.makeText(MainActivity.this,
                        "key 验证出错! 请在 AndroidManifest.xml 文件中检查 key 设置",
                        Toast.LENGTH_SHORT).show();
                ;
            } else if (s
                    .equals(SDKInitializer.SDK_BROADCAST_ACTION_STRING_NETWORK_ERROR)) {
                Toast.makeText(MainActivity.this, "网络出错", Toast.LENGTH_SHORT)
                        .show();
            }
        }
    }

}

对比之前(一)的例子，可以看到主要是添加了  mBaiduMap = mMapView.getMap();

并对参数mBaiduMap做控制

运行结果截屏：