Android开发之高德API篇：2、高德API线路规划前言：step1 工程配置step2 整体实现过程step3 具体实现过程总结附上源码

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	private AMap aMap;
	private MapView mapView;
	private Context mContext;
	private RouteSearch mRouteSearch;
	private WalkRouteResult mWalkRouteResult;

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	/**
	 * 初始化AMap对象
	 */
	private void init() {
		if (aMap == null) {
			aMap = mapView.getMap();
			geoMarker = aMap.addMarker(new MarkerOptions().anchor(0.5f, 0.5f)
					.icon(BitmapDescriptorFactory
							.defaultMarker(BitmapDescriptorFactory.HUE_BLUE)));
		}
		search = (Button) findViewById(R.id.search);
		mWalk = (ImageButton) findViewById(R.id.route_walk);

		registerListener();

		mRouteSearch = new RouteSearch(this);
		mRouteSearch.setRouteSearchListener(this);

		mBottomLayout = (RelativeLayout) findViewById(R.id.bottom_layout);
		mBusResultLayout = (LinearLayout) findViewById(R.id.bus_result);
		mRotueTimeDes = (TextView) findViewById(R.id.firstline);
		mRouteDetailDes = (TextView) findViewById(R.id.secondline);
	}

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	/**
	 * 注册监听
	 */
	private void registerListener() {
		aMap.setOnMapClickListener(RouteActivity.this);
		aMap.setOnMarkerClickListener(RouteActivity.this);
		aMap.setOnInfoWindowClickListener(RouteActivity.this);
		aMap.setInfoWindowAdapter(RouteActivity.this);
		search.setOnClickListener(this);
		mWalk.setOnClickListener(this);

		//地址编码
		geocoderSearch = new GeocodeSearch(this);
		geocoderSearch.setOnGeocodeSearchListener(this);
		progDialog = new ProgressDialog(this);
	}

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	/**
	 * 开始搜索路径规划方案
	 */
	public void searchRouteResult(int routeType, int mode) {
		if (mStartPoint == null) {
			ToastUtil.show(mContext, "起点未设置");
			return;
		}
		if (mEndPoint == null) {
			ToastUtil.show(mContext, "终点未设置");
		}
		showProgressDialog();
		final RouteSearch.FromAndTo fromAndTo = new RouteSearch.FromAndTo(
				mStartPoint, mEndPoint);
		if (routeType == ROUTE_TYPE_WALK) {// 步行路径规划
			WalkRouteQuery query = new WalkRouteQuery(fromAndTo);
			mRouteSearch.calculateWalkRouteAsyn(query);// 异步路径规划步行模式查询
		}
	}

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	/**
	 * 步行路线搜索结果方法回调
	 */
	@Override
	public void onWalkRouteSearched(WalkRouteResult result, int errorCode) {
		dissmissProgressDialog();
		aMap.clear();// 清理地图上的所有覆盖物
		if (errorCode == AMapException.CODE_AMAP_SUCCESS) {
			if (result != null && result.getPaths() != null) {
				if (result.getPaths().size() > 0) {
					mWalkRouteResult = result;
					final WalkPath walkPath = mWalkRouteResult.getPaths()
							.get(0);
					if(walkPath == null) {
						return;
					}
					WalkRouteOverlay walkRouteOverlay = new WalkRouteOverlay(
							this, aMap, walkPath,
							mWalkRouteResult.getStartPos(),
							mWalkRouteResult.getTargetPos());
					walkRouteOverlay.removeFromMap();
					walkRouteOverlay.addToMap();
					walkRouteOverlay.zoomToSpan();
					mBottomLayout.setVisibility(View.VISIBLE);
					int dis = (int) walkPath.getDistance();
					int dur = (int) walkPath.getDuration();
					String des = AMapUtil.getFriendlyTime(dur)+"("+AMapUtil.getFriendlyLength(dis)+")";
					mRotueTimeDes.setText(des);
					mRouteDetailDes.setVisibility(View.GONE);
					mBottomLayout.setOnClickListener(new OnClickListener() {
						@Override
						public void onClick(View v) {
							Intent intent = new Intent(mContext,
									WalkRouteDetailActivity.class);
							intent.putExtra("walk_path", walkPath);
							intent.putExtra("walk_result",
									mWalkRouteResult);
							startActivity(intent);
						}
					});
				} else if (result != null && result.getPaths() == null) {
					ToastUtil.show(mContext, R.string.no_result);
				}

			} else {
				ToastUtil.show(mContext, R.string.no_result);
			}
		} else {
			ToastUtil.showerror(this.getApplicationContext(), errorCode);
		}
	}