android之使用百度地圖（1）

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Activity_main.xml

 1 <?xml version="1.0" encoding="utf-8"?> 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 3     android:orientation="vertical" 4     android:layout_width="match_parent" 5     android:layout_height="match_parent"> 6  7     <TextView 8         android:layout_width="wrap_content" 9         android:layout_height="wrap_content"10         android:id="@+id/tv_positionTextView"/>11 12 </LinearLayout>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="acticitytest.exapmle.com.lbstest">    <!-- 這個許可權用於進行網路定位-->    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>    <!--訪問GPS定位-->    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>    <!--訪問WiFi網路資訊，WiFi資訊會用於網路定位-->    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>    <!--擷取運行商資訊，用於支援提供電訊廠商的資訊相關的介面-->    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>    <!--擷取WiFi許可權，WiFi資訊會使用這種網路定位-->    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>    <!--讀取當前手機狀態-->    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>    <!--寫入拓展儲存，向拓展卡寫入資料-->    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>    <!--訪問網路，因為網路定位需要上網-->    <uses-permission android:name="android.permission.INTERNET"/>    <!--SD卡讀取許可權-->    <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>    <!--允許使用者讀取低層級的系統日誌-->    <uses-permission android:name="android.permission.WAKE_LOCK"/>    <application        android:allowBackup="true"        android:icon="@mipmap/ic_launcher"        android:label="@string/app_name"        android:roundIcon="@mipmap/ic_launcher_round"        android:supportsRtl="true"        android:theme="@style/AppTheme">        <meta-data            android:name="com.baidu.lbsapi.API_KEY"            android:value="SvxVofWKmGx9PaizUrIk3q4TSaxlUv4A"/>        <activity android:name=".MainActivity">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>        <service android:name="com.baidu.location.f"            android:enabled="true"            android:process=":remote">        </service>    </application></manifest>

MainActivity.java

package acticitytest.exapmle.com.lbstest;import android.Manifest;import android.content.pm.PackageManager;import android.support.annotation.NonNull;import android.support.v4.app.ActivityCompat;import android.support.v4.content.ContextCompat;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.widget.TextView;import android.widget.Toast;import com.baidu.location.BDLocation;import com.baidu.location.BDLocationListener;import com.baidu.location.LocationClient;import com.baidu.location.LocationClientOption;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity {    public LocationClient mLocationClient;    private TextView postionText;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        mLocationClient=new LocationClient(getApplicationContext());        mLocationClient.registerLocationListener(new MyLocationListener());        setContentView(R.layout.activity_main);        postionText=(TextView)findViewById(R.id.tv_positionTextView);        List<String> permissionList=new ArrayList<>();        if(ContextCompat.checkSelfPermission(MainActivity.this,                Manifest.permission.ACCESS_FINE_LOCATION)!= PackageManager.PERMISSION_GRANTED){            permissionList.add(Manifest.permission.ACCESS_FINE_LOCATION);        }        if(ContextCompat.checkSelfPermission(MainActivity.this,                Manifest.permission.READ_PHONE_STATE)!=PackageManager.PERMISSION_GRANTED){            permissionList.add(Manifest.permission.READ_PHONE_STATE);        }        if(ContextCompat.checkSelfPermission(MainActivity.this,                Manifest.permission.WRITE_EXTERNAL_STORAGE)!=PackageManager.PERMISSION_GRANTED){            permissionList.add(Manifest.permission.WRITE_EXTERNAL_STORAGE);        }        if(!permissionList.isEmpty()){            String [] permissions=permissionList.toArray(new String[permissionList.size()]);            ActivityCompat.requestPermissions(MainActivity.this,permissions,1);        }else{            requestLocation();        }    }    public void requestLocation(){        initLocation();        mLocationClient.start();//開始定位    }    /**用於更新位置資訊*/    private void initLocation(){        LocationClientOption option=new LocationClientOption();        option.setScanSpan(5000);//每五秒更新當前位置        mLocationClient.setLocOption(option);    }    @Override    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {        switch (requestCode){            case 1:                if(grantResults.length>0){                    for (int result :grantResults){                        if (result!=PackageManager.PERMISSION_GRANTED){                            Toast.makeText(this,"必須同意所有許可權才能使用本程式",Toast.LENGTH_SHORT).show();                            finish();                            return;                        }                    }                    requestLocation();                }else{                    Toast.makeText(this,"未知錯誤",Toast.LENGTH_SHORT).show();                    finish();                }                break;            default:                break;        }    }    public class MyLocationListener implements BDLocationListener{        @Override        public void onReceiveLocation(BDLocation bdLocation) {            StringBuilder currentPostion =new StringBuilder();            currentPostion.append("緯度：").append(bdLocation.getLatitude()).append("\n");            currentPostion.append("經度：").append(bdLocation.getLongitude()).append("\n");            currentPostion.append("定位方式：");            if (bdLocation.getLocType()==BDLocation.TypeGpsLocation){                currentPostion.append("GPS");            }else if(bdLocation.getLocType()==BDLocation.TypeNetWorkLocation){                currentPostion.append("網路");            }else{                currentPostion.append("未識別");            }            postionText.setText(currentPostion);        }    }    @Override    protected void onDestroy() {        super.onDestroy();        mLocationClient.stop();//不斷更新時一定要注意，在活動銷毀時關閉，否則會一直耗電    }}

 

android之使用百度地圖（1）