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【Android】说做就做：都市列表+卫星map

热度：58   发布时间：2016-05-01 15:31:54.0
【Android】说做就做：都市列表+卫星地图
前言：为了得奖。。。android。。。T_T。。。

完成notepad 3部曲，又看了其他人的MapView使用例子，手痒啊，做了个简陋的都市列表，并用MapView来看卫星地图，还有目前路况（traffic，如果有的话），Zoom In/Out，纯抄袭，羞愧中。。。

基本上基于notepad样板，做了个City的list：（偷工减料，static一下了，其实应该从db或者web service上面拿。。。）
java 代码
  1. static?{??
  2. ????????cities?=?new?ArrayList<String>();??
  3. ????????cities.add("beijing");??
  4. ????????cities.add("london");??
  5. ????????cities.add("bangalore");??
  6. ????????cities.add("potsdam");??
  7. ????????cities.add("brasilia");??
  8. ??????????
  9. ????????geocodes?=?new?HashMap<String,?GeoPoint>();??
  10. ????????geocodes.put("beijing",?new?GeoPoint(40.25f,116.5f));??
  11. ????????geocodes.put("london",?new?GeoPoint(51.52f,-0.1f));??
  12. ????????geocodes.put("bangalore",?new?GeoPoint(12.97f,77.56f));??
  13. ????????geocodes.put("potsdam",?new?GeoPoint(52.4f,13.07f));??
  14. ????????geocodes.put("brasilia",?new?GeoPoint(-15.78f,-47.91f));??
  15. ??????????
  16. ????}??
geocode是从IBM一个Perl的例子上copy的。。。

接下来把notepad copy一下，改成自己的东西。。。
java 代码
  1. @Override??
  2. ????protected?void?onCreate(Bundle?icicle)?{??
  3. ????????super.onCreate(icicle);??
  4. ????????setContentView(R.layout.city_list);??
  5. ????????fillData();??
  6. ????}??
  7. ??????
  8. ????private?void?fillData()?{??
  9. ????????ArrayAdapter<String>?cities?=???
  10. ????????????new?ArrayAdapter<String>(this,?R.layout.city_row,?MapConstants.cities);??
  11. ????????setListAdapter(cities);??
  12. ????}??
  13. ??????
  14. ??????
  15. ????@Override??
  16. ????protected?void?onListItemClick(ListView?l,?View?v,?int?position,?long?id)?{??
  17. ????????super.onListItemClick(l,?v,?position,?id);??
  18. ??
  19. ????????Intent?i?=?new?Intent(this,?CityMap.class);?
  20. //这里传递选择的城市名字
  21. ????????i.putExtra(MapConstants.CITY_NAME,?MapConstants.cities.get(position));??
  22. ????????startSubActivity(i,?ACTIVITY_VIEW);??
  23. ????}??
  24. ?????
  25. //mapview 回来的时候显示城市list
  26. ????@Override??
  27. ????protected?void?onActivityResult(int?requestCode,?int?resultCode,?String?data,?Bundle?extras)?{??
  28. ????????super.onActivityResult(requestCode,?resultCode,?data,?extras);??
  29. ????????fillData();??
  30. ????}??

现在是重点了，CityMap：
java 代码
  1. public?class?CityMap?extends?MapActivity??

要extends MapActivity，因为是个View嘛。。。

在onCreate()里面拿到传递进去的city，然后拿city的geocode：
java 代码
  1. private?MapView?myMapView;??
  2. ??
  3. ????@Override??
  4. ????public?void?onCreate(Bundle?icicle)?{??
  5. ????????super.onCreate(icicle);??
  6. ??????????
  7. ????????Bundle?extras?=?getIntent().getExtras();??
  8. ??????????
  9. ????????//?get?the?geopoint?by?city??
  10. ????????String?city?=?extras.getString(MapConstants.CITY_NAME);??
  11. ??????????
  12. ????????GeoPoint?gp?=?MapConstants.geocodes.get(city);??

GeoPoint是个DTO/VO，里面就放两个float的经度和纬度：
java 代码
  1. public?class?GeoPoint?{??
  2. ??
  3. ????private?float?latitude;??
  4. ????private?float?longitude;??

java 代码
  1. myMapView?=?new?MapView(this);??
  2. ?
  3. Point?p?=?new?Point((int)?(gp.getLatitude()?*?1000000),??
  4. ??????????????????????????????(int)?(gp.getLongitude()?*?1000000));??
  5. ????????// 地图控制器。。。
  6. ????????MapController?mc?=?myMapView.getController();??
  7. ???????
  8. ????????mc.animateTo(p);??
  9. ????????// 21是最zoom in的一级，一共是1-21级
  10. ????????mc.zoomTo(21);??

  12. ????????setContentView(myMapView);??
  13. ????????// 切换到卫星地图
  14. ????????myMapView.toggleSatellite();??

搞定显示，接下来是key events：
i: zoom in
o: zoom out
s: satellite
t: traffic
java 代码
  1. public?boolean?onKeyDown(int?keyCode,?KeyEvent?event)?{??
  2. ????????if?(keyCode?==?KeyEvent.KEYCODE_I)?{??
  3. ????????????// zoom in
  4. ????????????myMapView.getController().zoomTo(myMapView.getZoomLevel()?+?1);??
  5. ????????????return?true;??
  6. ????????}?else?if?(keyCode?==?KeyEvent.KEYCODE_O)?{??
  7. ????????????// zoom out?
  8. ????????????myMapView.getController().zoomTo(myMapView.getZoomLevel()?-?1);??
  9. ????????????return?true;??
  10. ????????}?else?if?(keyCode?==?KeyEvent.KEYCODE_S)?{??
  11. ??????????// 卫星地图
  12. ????????????myMapView.toggleSatellite();??
  13. ????????????return?true;??
  14. ????????}?else?if?(keyCode?==?KeyEvent.KEYCODE_T)?{??
  15. ????????????// traffic，路况
  16. ????????????myMapView.toggleTraffic();??
  17. ????????????return?true;??
  18. ????????}??
  19. ????????return?false;??
  20. ????}???

最后加个回到城市list的menu：

java 代码
  1. @Override??
  2. ????public?boolean?onCreateOptionsMenu(Menu?menu)?{??
  3. ????????super.onCreateOptionsMenu(menu);??
  4. ????????menu.add(0,?EXIT_ID,?R.string.exit_citymap);??
  5. ????????return?true;??
  6. ????}??
  7. ??????
  8. ????@Override??
  9. ????public?boolean?onMenuItemSelected(int?featureId,?Item?item)?{??
  10. ????????super.onMenuItemSelected(featureId,?item);??
  11. ????????switch(item.getId())?{??
  12. ????????case?EXIT_ID:??
  13. ????????????finish();??
  14. ????????????break;??
  15. ????????}??
  16. ??????????
  17. ????????return?true;??
  18. ????}??


1 楼 lordhong 2007-11-19  
靠！有附件就发不上去，去掉附件就可以了，JE大bug啊。。。附件续上。。。
2 楼 lordhong 2007-11-19  
我用adb install lordhong.MapDemo1.apk，然后显示0 bytes虾米的，emulator里面也找不到。。。怎么回事？严格按照google doc：
Running an Android Application

To run a compiled application, you will upload the .apk file to the /data/app/ directory in the emulator using the adb tool as described here:

   1. Start the emulator (run <your_sdk_dir>/tools/emulator from the command line)
   2. On the emulator, navigate to the home screen (it is best not to have that application running when you reinstall it on the emulator; press the Home key to navigate away from that application).
   3. Run adb install myproject/bin/<appname>.apk to upload the executable. So, for example, to install the Lunar Lander sample, navigate in the command line to <your_sdk_dir>/sample/LunarLander and type ../../tools/adb install bin/LunarLander.apk
   4. In the emulator, open the list of available applications, and scroll down to select and start your application.

—T.T...
3 楼 crazyox 2007-11-19  
android做出来的东西可以直接在手机上看?
4 楼 crazyox 2007-11-19  
今天javaeye是怎么了? 老打不开自己的博客?
5 楼 fins 2007-11-19  
lordhong 写道
我用adb install lordhong.MapDemo1.apk，然后显示0 bytes虾米的，emulator里面也找不到。。。怎么回事？严格按照google doc：
Running an Android Application

To run a compiled application, you will upload the .apk file to the /data/app/ directory in the emulator using the adb tool as described here:

   1. Start the emulator (run <your_sdk_dir>/tools/emulator from the command line)
   2. On the emulator, navigate to the home screen (it is best not to have that application running when you reinstall it on the emulator; press the Home key to navigate away from that application).
   3. Run adb install myproject/bin/<appname>.apk to upload the executable. So, for example, to install the Lunar Lander sample, navigate in the command line to <your_sdk_dir>/sample/LunarLander and type ../../tools/adb install bin/LunarLander.apk
   4. In the emulator, open the list of available applications, and scroll down to select and start your application.

—T.T...


进 adb shell里 看不到?? 如果能看到 rm了 然后从新 push吧
6 楼 fins 2007-11-19  
lordhong 写道
我用adb install lordhong.MapDemo1.apk，然后显示0 bytes虾米的，emulator里面也找不到。。。怎么回事？严格按照google doc：
Running an Android Application

To run a compiled application, you will upload the .apk file to the /data/app/ directory in the emulator using the adb tool as described here:

   1. Start the emulator (run <your_sdk_dir>/tools/emulator from the command line)
   2. On the emulator, navigate to the home screen (it is best not to have that application running when you reinstall it on the emulator; press the Home key to navigate away from that application).
   3. Run adb install myproject/bin/<appname>.apk to upload the executable. So, for example, to install the Lunar Lander sample, navigate in the command line to <your_sdk_dir>/sample/LunarLander and type ../../tools/adb install bin/LunarLander.apk
   4. In the emulator, open the list of available applications, and scroll down to select and start your application.

—T.T...


进 adb shell里 看不到?? 如果能看到 rm了 然后从新 push吧
7 楼 yb31 2007-11-19  
试了下
adb shell 里已经有了.
重新rm掉.再install,或push也不行
8 楼 lordhong 2007-11-20  
今天就adb shell。。。rm了一把，NND，程序都改了，emulator竟然不把新的app load进去，真是白痴。。。害我debug半个多小时。。，
9 楼 crazyox 2007-11-20  
好东西, 不知道以后做这种手机软件的公司会不会多, 前景好不好啊!
10 楼 huanghero0663 2007-11-21  
crazyox 写道
好东西, 不知道以后做这种手机软件的公司会不会多, 前景好不好啊!
关注中，希望又新的东西出来^_^
11 楼 andy54321 2007-11-26  
暂时还没研究这个地步,看来差距不小呢
12 楼 qiuzhiqing 2007-11-30  
跑了个HelloWorld！呵呵
差距啊~~~
13 楼 lordhong 2007-12-01  
慢慢来,我也是刚起步,东抄西抄的...
14 楼 fastzch 2007-12-10  
各位有在android中如何开发Web Service的教程或例子吗？
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