开源组件名称

地震来了

开源组件说明及使用场景

本应用使用高德安卓地图SDK，当遇到自然灾害如地震时，为了有助于救援的快速进行，由用户基于位置上传受灾或救援信息，供灾民和营救人员辅助决策。

开源组件所使用的技术

本工程为基于高德地图Android SDK进行封装，实现了用户自定义上传信息。

Git代码托管地址

https://git.oschina.net/gandalfnl/earthquakeicg.git

开源组件截图

震源位置闪烁显示

点击位置图标左上角显示用户上传的详细信息

用户长按有最新信息的某一位置，弹出如下界面，输入相关信息

输入完信息

并点击确定后生成标记图标，并显示用户输入的信息

安装包下载地址

主要代码：

package com.example.earthquakeicg;import java.util.ArrayList;
import android.app.Activity;
import android.graphics.Point;
import android.os.Bundle;
import android.os.Handler;
import android.os.SystemClock;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;import com.amap.api.maps2d.AMap;
import com.amap.api.maps2d.CameraUpdateFactory;
import com.amap.api.maps2d.MapView;
import com.amap.api.maps2d.Projection;
import com.amap.api.maps2d.AMap.InfoWindowAdapter;
import com.amap.api.maps2d.AMap.OnInfoWindowClickListener;
import com.amap.api.maps2d.AMap.OnMapClickListener;
import com.amap.api.maps2d.AMap.OnMapLoadedListener;
import com.amap.api.maps2d.AMap.OnMapLongClickListener;
import com.amap.api.maps2d.AMap.OnMarkerClickListener;
import com.amap.api.maps2d.model.BitmapDescriptor;
import com.amap.api.maps2d.model.BitmapDescriptorFactory;
import com.amap.api.maps2d.model.LatLng;
import com.amap.api.maps2d.model.LatLngBounds;
import com.amap.api.maps2d.model.Marker;
import com.amap.api.maps2d.model.MarkerOptions;
import com.example.earthquakeicg.Constants;
import com.example.earthquakeicg.ToastUtil;import android.view.View;
import android.view.View.OnClickListener;
import android.view.animation.BounceInterpolator;
import android.view.animation.Interpolator;public class MainActivity extends Activity   implements  OnMapClickListener,
OnMapLongClickListener,OnMarkerClickListener,OnClickListener,
OnInfoWindowClickListener, OnMapLoadedListener, InfoWindowAdapter {private MapView mapView;private AMap aMap;private TextView mTapTextView;private EditText mInputText; private EditText mInputText2;private Button ybutton;private Button nbutton;private String mtitle="";private String mcontent="";private float mlatitude=0;private float mlongitude=0;        @Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);// R 需要引用包import com.amapv2.apis.R;setContentView(R.layout.activity_main);mapView = (MapView) findViewById(R.id.map);mapView.onCreate(savedInstanceState);// 必须要写init();}private void init() {if (aMap == null) {aMap = mapView.getMap();setUpMap();}mTapTextView = (TextView) findViewById(R.id.tap_text);mInputText = (EditText) findViewById(R.id.inputtext);mInputText2 = (EditText) findViewById(R.id.EditText01);ybutton = (Button) findViewById(R.id.button1);nbutton = (Button) findViewById(R.id.button2);mInputText.setVisibility(View.INVISIBLE); mInputText2.setVisibility(View.INVISIBLE); ybutton.setVisibility(View.INVISIBLE); nbutton.setVisibility(View.INVISIBLE); ybutton.setOnClickListener(this);nbutton.setOnClickListener(this);//radioOption = (RadioGroup) findViewById(R.id.custom_info_window_options);}//@Override private void setUpMap() {aMap.setOnMapClickListener(this);// 对amap添加单击地图事件监听器aMap.setOnMapLongClickListener(this);// 对amap添加长按地图事件监听器aMap.setOnMapLoadedListener(this);// 设置amap加载成功事件监听器aMap.setOnMarkerClickListener(this);// 设置点击marker事件监听器aMap.setOnInfoWindowClickListener(this);// 设置点击infoWindow事件监听器aMap.setInfoWindowAdapter(this);// 设置自定义InfoWindow样式addMarkersToMap();// 往地图上添加marker}@Overrideprotected void onResume() {super.onResume();mapView.onResume();}@Overrideprotected void onPause() {super.onPause();mapView.onPause();}@Overrideprotected void onSaveInstanceState(Bundle outState) {super.onSaveInstanceState(outState);mapView.onSaveInstanceState(outState);}@Overrideprotected void onDestroy() {super.onDestroy();mapView.onDestroy();}  /*** 在地图上添加marker*/private void addMarkersToMap() {aMap.addMarker(new MarkerOptions().anchor(0.5f, 0.5f).position(Constants.Babaocun).title("八宝村沙子厂").snippet("时间：2014-8-05；\n八宝村沙子厂房屋倒塌严重，没有伤亡，没帐篷，水，食物需要药品及食物。").draggable(true));aMap.addMarker(new MarkerOptions().anchor(0.5f, 0.5f).position(Constants.Laojiezi).title("龙头山镇光明村老街子").snippet("时间：2014-8-04 ；\n道路全部堵塞，土房全部倒塌，山体开裂严重，可能出现山体滑坡！其中菜园子有200多人被困缺乏食物、饮用水、帐篷。4人遇难，救出两位小孩，其中一个已经没有生命迹象，另外还有两个大人被埋，村民正在救援。一个小时前有十几位官兵徒步进入，目前还没有到达村里！").draggable(true));aMap.addMarker(new MarkerOptions().anchor(0.5f, 0.5f).position(Constants.Tianshengqiaocun).title("天生桥村").snippet("时间：2014-8-04 ；\n一半以上房屋倒塌，尚无救援力量到达。求救人余先生的妹妹被埋压。").draggable(true));aMap.addMarker(new MarkerOptions().anchor(0.5f, 0.5f).position(Constants.Shuijingwan).title("龙头山镇新民村水井湾社").snippet("时间：2014-8-04 ；\n通往县城的路断了，有伤员出不去，现在有医生进入无救援队进入。刚下过暴雨，没有帐篷，缺少吃的，保暖衣物，也没有紧急避难场所。").draggable(true));aMap.addMarker(new MarkerOptions().anchor(0.5f, 0.5f).position(Constants.Zhichangxiang).title("纸厂乡安置点").snippet("时间：2014-8-05 ；\n会泽县纸厂乡中学临时安置点，8台炊具车免费为受灾群众供应晚饭，四菜一汤，还有肉，1200余受灾群众就餐。").draggable(true));drawMarkers();// 添加10个带有系统默认icon的marker}public void drawMarkers() {// 动画效果ArrayList<BitmapDescriptor> giflist = new ArrayList<BitmapDescriptor>();giflist.add(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_BLUE));giflist.add(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED));giflist.add(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_YELLOW));Marker marker = aMap.addMarker(new MarkerOptions().anchor(0.5f, 0.5f).position(Constants.Zhenzhong).title("云南昭通6.5级地震（震源）").icons(giflist).snippet("2014-8-03-16:30；震源深度12公里。。").draggable(true).period(3));marker.showInfoWindow();// 设置默认显示一个infowinfow}/*** 对marker标注点点击响应事件*/@Overridepublic boolean onMarkerClick(final Marker marker) {//jumpPoint(marker);    mTapTextView.setText("详细信息：" + marker.getTitle()+"\n"+"坐标："+marker.getPosition()+"\n"+marker.getSnippet());marker.showInfoWindow();     return false;}/*** marker点击时跳动一下*/public void jumpPoint(final Marker marker) {final Handler handler = new Handler();final long start = SystemClock.uptimeMillis();Projection proj = aMap.getProjection();Point startPoint = proj.toScreenLocation(Constants.Zhenzhong);startPoint.offset(0, -100);final LatLng startLatLng = proj.fromScreenLocation(startPoint);final long duration = 1500;final Interpolator interpolator = new BounceInterpolator();handler.post(new Runnable() {@Overridepublic void run() {long elapsed = SystemClock.uptimeMillis() - start;float t = interpolator.getInterpolation((float) elapsed/ duration);double lng = t * Constants.Zhenzhong.longitude + (1 - t)* startLatLng.longitude;double lat = t * Constants.Zhenzhong.latitude + (1 - t)* startLatLng.latitude;marker.setPosition(new LatLng(lat, lng));aMap.invalidate();// 刷新地图if (t < 1.0) {handler.postDelayed(this, 16);}}});}/*** 监听点击infowindow窗口事件回调*/@Overridepublic void onInfoWindowClick(Marker marker) {//ToastUtil.show(this, "你点击了infoWindow窗口" + marker.getTitle());           }/*** 监听amap地图加载成功事件回调*/@Overridepublic void onMapLoaded() {// 设置所有maker显示在当前可视区域地图中LatLngBounds bounds = new LatLngBounds.Builder().include(Constants.Babaocun).include(Constants.Laojiezi).include(Constants.Zhenzhong).include(Constants.Tianshengqiaocun).include(Constants.Shuijingwan).build();aMap.moveCamera(CameraUpdateFactory.newLatLngBounds(bounds, 10));}/*** 监听自定义infowindow窗口的infocontents事件回调*/@Overridepublic View getInfoContents(Marker marker) {return null;}/*** 监听自定义infowindow窗口的infowindow事件回调*/@Overridepublic View getInfoWindow(Marker marker) {return null;}/*** 对单击地图事件回调*///@Overridepublic void onMapClick(LatLng point) {}/*** 对长按地图事件回调*///@Overridepublic void onMapLongClick(LatLng point) {          mInputText.setVisibility(View.VISIBLE); mInputText2.setVisibility(View.VISIBLE);ybutton.setVisibility(View.VISIBLE); nbutton.setVisibility(View.VISIBLE);   mlatitude=(float)point.latitude;mlongitude=(float)point.longitude;                }@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.button1:{mInputText.setVisibility(View.INVISIBLE); mInputText2.setVisibility(View.INVISIBLE);ybutton.setVisibility(View.INVISIBLE); nbutton.setVisibility(View.INVISIBLE);            mtitle=mInputText.getText().toString();mcontent=mInputText2.getText().toString();LatLng mpos =new LatLng(mlatitude, mlongitude);                             aMap.addMarker(new MarkerOptions().anchor(0.5f, 0.5f).position(mpos).title(mtitle).snippet(mcontent).draggable(true));  }break;case R.id.button2:{mInputText.setVisibility(View.INVISIBLE); mInputText2.setVisibility(View.INVISIBLE);ybutton.setVisibility(View.INVISIBLE); nbutton.setVisibility(View.INVISIBLE); mtitle="";mcontent="";}break;default:break;}}}