採用高德地圖 實現打車功能程式碼
阿新 • • 發佈：2018-11-04
1：移動視角
要用：aMap.moveCamera(CameraUpdateFactory.newLatLngBounds(bounds, 50));
aMap.animateCamera(CameraUpdateFactory.newLatLngBounds(bounds, 50));顯示的範圍不準確
// 根據動畫按鈕的狀態來選擇不同的camera來改變可視區域
// AMap.CanclelableCallback：當一個任務完成或關閉時的回撥介面。
private
void
changeCamera(CameraUpdate update, AMap.CancelableCallback callback){
boolean
animated = ((CompoundButton)findViewById(R.id.animate)).isChecked();
if
(animated){//在指定的持續時間內，動畫地移動地圖到指定的位置，完成時呼叫可選的回撥方法。 如果運動過程中呼叫getCameraPosition()，它將返回可視區域飛行中的當前位置。
// 第一個引數：定義轉換的時間，第二個引數：運動的持續時間，第三個引數：回撥函式
aMap.animateCamera(update,1000
,callback);
}
else
{
// 照傳入的CameraUpdate 引數移動可視區域。這個方法為瞬間移動，沒有移動過程，如果在呼叫此方法後再呼叫getCameraPosition()將返回移動後位置。
aMap.moveCamera(update);
}
}
2：構建矩形可見區域
/** * 構建矩形可見區域 * * @return */ private LatLngBounds getFELatLngBounds() { LatLngBounds.Builder b = LatLngBounds.builder(); for (int i = 0; i < mLatLngs.size(); i++) { b.include(new LatLng(mLatLngs.get(i).latitude, mLatLngs.get(i).longitude)); } b.include(endLatlng).include(nowLatlng).include(startLatlng); return b.build(); }
3：跳轉高德地圖
private void openGaoDeMap() { Intent intent = new Intent("android.intent.action.VIEW"); intent.setData(Uri.parse("androidamap://route?sourceApplication=" + getPackageName() + "&slat=" + tripInfo.getFrom_lat() + "&slon=" + tripInfo.getFrom_lng() + "&sname=" + tripInfo.getFrom_address() + "&dlat=" + tripInfo.getTo_lat() + "&dlon=" + tripInfo.getTo_lng() + "&dname=" + tripInfo.getTo_address() + "&dev=1&m=0&t=0&showType=0&&style=2")); if (isInstallByread("com.autonavi.minimap")) { startActivity(intent); //啟動呼叫 } else { showTextDialog("沒有安裝高德地圖客戶端"); } }
private boolean isInstallByread(String packageName) { return new File("/data/data/" + packageName).exists(); }4：平滑移動小車
private void movie() { mLatLngmovies.clear(); mLatLngmovies.add(BaseApplication.getInstance().getLatLngs() .get(BaseApplication.getInstance().getLatLngs().size() - 3)); mLatLngmovies.add(BaseApplication.getInstance().getLatLngs() .get(BaseApplication.getInstance().getLatLngs().size() - 2)); mLatLngmovies.add(BaseApplication.getInstance().getLatLngs() .get(BaseApplication.getInstance().getLatLngs().size() - 1)); // if (polyine == null) { // ToastUtil.showShortToast(mContext, "請先規劃好路線"); // return; // } if (marker != null) marker.destroy(); // if (!istach) { // 移動map的鏡頭 LatLngBounds bounds = getLatLngBounds(); aMap.moveCamera(CameraUpdateFactory.newLatLngBounds(bounds, 50)); // aMap.animateCamera(CameraUpdateFactory.newLatLngBounds(bounds, 50)); // } LatLng drivePoint = mLatLngmovies.get(0); Pair<Integer, LatLng> pair = SpatialRelationUtil.calShortestDistancePoint(mLatLngmovies, drivePoint); mLatLngmovies.set(pair.first, drivePoint); List<LatLng> subList = mLatLngmovies.subList(pair.first, mLatLngmovies.size()); // 設定滑動的軌跡左邊點 smoothMarker.setPoints(subList); // 設定滑動的總時間 smoothMarker.setTotalDuration(time); // 開始滑動 smoothMarker.startSmoothMove(); }
5：軌跡糾偏
/** * 調起一次軌跡糾偏 */ private void traceGrasp() { if (mOverlayList.containsKey(mSequenceLineID)) { cleanFinishTrace(); TraceOverlay overlay = new TraceOverlay(aMap); mOverlayList.put(mSequenceLineID, overlay); List<LatLng> mapList = traceLocationToMap(mTraceList); if (arrive1) { mapList.add(startLatlng); mapList.add(endLatlng); mapList.add(nowLatlng); // 移動地圖，所有marker自適應顯示。LatLngBounds與地圖邊緣10畫素的填充區域 overlay.setProperCamera(mapList); } mTraceClient.queryProcessedTrace(mSequenceLineID, mTraceList, mCoordinateType, this); int status = overlay.getTraceStatus(); String tipString = ""; if (status == TraceOverlay.TRACE_STATUS_PROCESSING) { tipString = "該線路軌跡糾偏進行中..."; setDistanceWaitInfo(overlay); } else if (status == TraceOverlay.TRACE_STATUS_FINISH) { setDistanceWaitInfo(overlay); tipString = "該線路軌跡已完成"; } else if (status == TraceOverlay.TRACE_STATUS_FAILURE) { tipString = "該線路軌跡失敗"; } else if (status == TraceOverlay.TRACE_STATUS_PREPARE) { tipString = "該線路軌跡糾偏已經開始"; } Toast.makeText(this.getApplicationContext(), tipString, Toast.LENGTH_SHORT).show(); return; } TraceOverlay mTraceOverlay = new TraceOverlay(aMap); mOverlayList.put(mSequenceLineID, mTraceOverlay); List<LatLng> mapList = traceLocationToMap(mTraceList); if (arrive1) { mapList.add(startLatlng); mapList.add(endLatlng); mapList.add(nowLatlng); mTraceOverlay.setProperCamera(mapList); } mResultShow.setText(mDistanceString); mLowSpeedShow.setText(mStopTimeString); mTraceClient.queryProcessedTrace(mSequenceLineID, mTraceList, mCoordinateType, this); }
/** * 軌跡糾偏點轉換為地圖LatLng * * @param traceLocationList * @return */ public List<LatLng> traceLocationToMap(List<TraceLocation> traceLocationList) { List<LatLng> mapList = new ArrayList<LatLng>(); for (TraceLocation location : traceLocationList) { LatLng latlng = new LatLng(location.getLatitude(), location.getLongitude()); mapList.add(latlng); } return mapList; }