在安卓開發中，使用騰訊地圖實作定位與導航功能-有解無憂

由于本人使用的是android studio，所以就以android studio為例，

一、申請密鑰、添加依賴以及添加權限

1、在工程頂級 build.gradle 檔案中加入：

maven{
	url "https://oss.sonatype.org/content/groups/public"
}

2、module build.gradle 檔案中添加依賴庫名稱：

implementation 'com.tencent.map:tencent-map-vector-sdk:4.3.5'

3、申請開發秘鑰，具體可參考開發檔案，此處就不演示，
https://lbs.qq.com/android_v1/guide-project-setup.html

4、在AndroidManifest.xml中添加權限，

	<uses-permission android:name="android.permission.INTERNET"/>
    <!--檢查網路可用性-->
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    <!-- 訪問WiFi狀態 -->
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <!--需要外部存盤寫權限用于保存地圖快取-->
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <!--獲取 device id 辨別設備-->
    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>

5、在application中輸入開發秘鑰，

<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">
        <activity android:name=".activity.MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>

        <meta-data android:name="TencentMapSDK" android:value="你的開發秘鑰" />

    </application>

以下是定位圖片效果展示：
在這里插入圖片描述

二、代碼展示

1、單獨實作定位功能，
創建一個MyMapActivity繼承BaseActivity，并實作一些父類，
由于代碼中有詳細的注釋，這里就不一一解釋了，

public class MyMapActivity extends BaseActivity implements TencentLocationListener, LocationSource, TencentMapGestureListener {

    @BindView(R.id.mv)
    MapView mv;

    private TencentLocationManager mLocationManager;
    private TencentMap mTencentMap;
    private TencentLocationRequest mRequest;
    private OnLocationChangedListener mLocationChangedListener;
    //將經緯度定義為全域變數，方便導航功能使用
    //為了方便導航，此處經緯度我寫固定的，可以視情況而定，
    private double mLatitude = 23.112159;  
    private double mLongitude = 113.329768;  
    private Location mLocation;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_my_map);
        ButterKnife.bind(this);
        initView();
        checkPermission();
    }

    //檢測權限
    private void checkPermission() {
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            //申請權限
            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_COARSE_LOCATION}, 222);//自定義的code
        }
    }

    private void initView() {
        mLocation = getLocation(this);
        mLocationManager = TencentLocationManager.getInstance(this);
        //創建定位請求
        mRequest = TencentLocationRequest.create();

        mTencentMap = mv.getMap();
        //地圖上設定定位資料源
        mTencentMap.setLocationSource(this);
        //設定當前位置可見
        mTencentMap.setMyLocationEnabled(true);
        mTencentMap.addTencentMapGestureListener(this);
        mLocationManager.requestSingleFreshLocation(null, this, Looper.getMainLooper());
    }

    public Location getLocation(Context context) {
        LocationManager locMan = (LocationManager) context
                .getSystemService(Context.LOCATION_SERVICE);
        Location location = locMan.getLastKnownLocation(LocationManager.GPS_PROVIDER);
        if (location == null) {
            location = locMan.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
        }
        return location;
    }

    /**
     * 騰訊定位SDK位置變化回呼
     *
     * @param tencentLocation
     * @param i
     * @param s
     */
    @Override
    public void onLocationChanged(TencentLocation tencentLocation, int i, String s) {
        BJLog.i("onLocationChanged:" + tencentLocation.getAddress() + " i:" + i + " s:" + s);
        if (i == TencentLocation.ERROR_OK && mLocationChangedListener != null) {
            Location location = new Location(tencentLocation.getProvider());
            //設定經緯度
            location.setLatitude(tencentLocation.getLatitude());
            location.setLongitude(tencentLocation.getLongitude());
            //設定精度，這個值會被設定為定位點上表示精度的圓形半徑
            location.setAccuracy(tencentLocation.getAccuracy());
            //設定定位標的旋轉角度，注意 tencentLocation.getBearing() 只有在 gps 時才有可能獲取
            location.setBearing((float) tencentLocation.getBearing());
            //將位置資訊回傳給地圖
            mLocationChangedListener.onLocationChanged(location);
        }
    }

    @Override
    public void onStatusUpdate(String s, int i, String s1) {

    }

    @Override
    public void activate(OnLocationChangedListener onLocationChangedListener) {
        //這里我們將地圖回傳的位置監聽保存為當前 Activity 的成員變數
        mLocationChangedListener = onLocationChangedListener;
    }

    @Override
    public void deactivate() {
        //當不需要展示定位點時，需要停止定位并釋放相關資源
        mLocationManager.removeUpdates(this);
        mLocationManager = null;
        mLocationManager = null;
        mLocationManager = null;
    }

    @Override
    public boolean onDoubleTap(float v, float v1) {
        return false;
    }

    @Override
    public boolean onSingleTap(float v, float v1) {
        return false;
    }

    @Override
    public boolean onFling(float v, float v1) {
        return false;
    }

    @Override
    public boolean onScroll(float v, float v1) {
        return false;
    }

    @Override
    public boolean onLongPress(float v, float v1) {
        return false;
    }

    @Override
    public boolean onDown(float v, float v1) {
        return false;
    }

    @Override
    public boolean onUp(float v, float v1) {
        return false;
    }

    @Override
    public void onMapStable() {

    }

    //創建地圖視圖之后，需要跟應用系結生命周期，以保障地圖在應用的不同生命周期中，能夠正確地處理顯示和重繪邏輯
    @Override
    protected void onStart() {
        super.onStart();
        mv.onStart();
    }

    @Override
    protected void onResume() {
        super.onResume();
        mv.onResume();
    }

    @Override
    protected void onStop() {
        super.onStop();
        mv.onStop();
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        mv.onDestroy();
    }
}

2、若想要實作導航功能，就拿我們經常使用的百度地圖、高德地圖、騰訊地圖而言吧，
首先自定義一個Dialog并設定為全域變數，（這并不是唯一的方法，僅供參考）

private Dialog mMapDialog;

注：個人建議把自定義Dialog單獨寫出來，不要放在Activity中，在此為了方便閱讀，就放一起了，

3、定義一個initShareDialog()方法，彈出選擇地圖的視窗，

private void initShareDialog() {
        // 可以使用這個： ll_dynamicDetail_bottom
        mMapDialog = new Dialog(this, R.style.dialog_bottom_full);
        mMapDialog.setCanceledOnTouchOutside(true); //手指觸碰到外界取消
        mMapDialog.setCancelable(true);             //可取消 為true
        Window window = mMapDialog.getWindow();      // 得到dialog的表單
        window.setGravity(Gravity.BOTTOM);
        window.setWindowAnimations(R.style.share_animation);

        View shareView = View.inflate(this, R.layout.dialog_maps, null); //獲取布局視圖
        TextView tvBaidu = shareView.findViewById(R.id.tv_baidu);
        TextView tvTengxun = shareView.findViewById(R.id.tv_tengxun);
        TextView tvGaode = shareView.findViewById(R.id.tv_gaode);
        TextView tvCancel = shareView.findViewById(R.id.tv_cancel);

        Intent intent = new Intent();
        intent.setAction(Intent.ACTION_VIEW);
        intent.addCategory(Intent.CATEGORY_DEFAULT);

        //百度地圖
        if (isAvilible(this, "com.baidu.BaiduMap")) {
            tvBaidu.setVisibility(View.VISIBLE);
        }
        //高德地圖
        if (isAvilible(this, "com.autonavi.minimap")) {
            tvGaode.setVisibility(View.VISIBLE);
        }
        //騰訊地圖
        if (isAvilible(this, "com.tencent.map")) {
            tvTengxun.setVisibility(View.VISIBLE);
        }
        tvBaidu.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                try {
                    Intent intent_baidu = Intent.getIntent("intent://map/direction?" +
                            "destination=latlng:" + mLatitude + "," + mLongitude +
                            "|name:我的終點" +        //終點
                            "&mode=driving&" +          //導航路線方式
                            "&src=appname#Intent;scheme=bdapp;package=com.baidu.BaiduMap;end");
                    startActivity(intent_baidu); //啟動呼叫
                    mMapDialog.dismiss();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
        tvGaode.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //將功能Scheme以URI的方式傳入data
                Uri uri = Uri.parse("androidamap://navi?sourceApplication=appname&poiname=fangheng&lat=" + mLatitude + "&lon=" + mLongitude + "&dev=1&style=2");
                intent.setData(uri);

                //啟動該頁面即可
                startActivity(intent);
                mMapDialog.dismiss();
            }
        });

        tvTengxun.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //將功能Scheme以URI的方式傳入data
                Uri uri = Uri.parse("qqmap://map/routeplan?type=drive&to=我的終點&tocoord=" + mLatitude + "," + mLongitude);
                intent.setData(uri);
                startActivity(intent);
                mMapDialog.dismiss();
            }
        });
        tvCancel.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mMapDialog.dismiss();
            }
        });
        //若手機沒有百度地圖、高德地圖、騰訊地圖，則提示用戶安裝，
        if (!isAvilible(this,"com.tencent.map")
                && !isAvilible(this, "com.baidu.BaiduMap")
                && !isAvilible(this, "com.autonavi.minimap")){
            Toast.makeText(this, "手機沒有地圖軟體，請安裝后重試！", Toast.LENGTH_SHORT).show();
            return;
        }
        WindowManager.LayoutParams params = new WindowManager.LayoutParams(WindowManager.LayoutParams.MATCH_PARENT,
                WindowManager.LayoutParams.WRAP_CONTENT);
        window.setContentView(shareView, params);
        window.setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.WRAP_CONTENT);//設定橫向全屏
        mMapDialog.show();
    }

4、在定義一個isAvilible()方法，判斷手機中是否有某個程式的包，

private boolean isAvilible(Context context, String packageName) {
        //獲取packagemanager
        final PackageManager packageManager = context.getPackageManager();
        //獲取所有已安裝程式的包資訊
        List<PackageInfo> packageInfos = packageManager.getInstalledPackages(0);
        //用于存盤所有已安裝程式的包名
        List<String> packageNames = new ArrayList<>();
        //從pinfo中將包名字逐一取出，壓入pName list中
        if (packageInfos != null) {
            for (int i = 0; i < packageInfos.size(); i++) {
                String packName = packageInfos.get(i).packageName;
                packageNames.add(packName);
            }
        }
        //判斷packageNames中是否有目標程式的包名，有TRUE，沒有FALSE
        return packageNames.contains(packageName);
    }

5、在initView()中加入以下代碼，點擊定位表便可實作，

		//SDK版本4.3.5新增內置定位標點擊回呼監聽
        mTencentMap.setMyLocationClickListener(new TencentMap.OnMyLocationClickListener() {
            @Override
            public boolean onMyLocationClicked(LatLng latLng) {
                initShareDialog();
                return true;
            }
        });

下面是導航實作效果，
在這里插入圖片描述

6、在style檔案中樣式：

	<!-- 對話框樣式 -->
    <style name="dialog_bottom_full" parent="android:style/Theme.Dialog">
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:scrollHorizontally">true</item>
    </style>

	<!--彈出框影片-->
    <style name="share_animation" parent="android:Animation">
        <item name="android:windowEnterAnimation">@anim/dialog_enter</item>
        <item name="android:windowExitAnimation">@anim/dialog_exit</item>
    </style>

7、Dialog的樣子：dialog_maps

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:background="@drawable/round_share_bg"
    android:paddingLeft="15dp"
    android:paddingRight="15dp">

    <TextView
        android:id="@+id/tv_baidu"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:gravity="center"
        android:text="百度地圖"
        android:textColor="@color/color333"
        android:textSize="18sp"
        android:visibility="gone"/>

    <TextView
        android:id="@+id/tv_gaode"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:gravity="center"
        android:text="高德地圖"
        android:textColor="@color/color333"
        android:textSize="18sp"
        android:visibility="gone"/>

    <TextView
        android:id="@+id/tv_tengxun"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:gravity="center"
        android:text="騰訊地圖"
        android:textColor="@color/color333"
        android:textSize="18sp"
        android:visibility="gone"/>

    <TextView
        android:id="@+id/tv_cancel"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:gravity="center"
        android:text="取消"
        android:textColor="@color/dialog_submit_color"
        android:textSize="18sp"/>

</LinearLayout>

以上就是定位與導航功能的實作，若有講得不好的地方，還請大佬們指出改正，

轉載請註明出處，本文鏈接：https://www.uj5u.com/qianduan/107067.html

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