来源: 互联网  发布时间: 2014-02-18

获取应用运行次数

PackageManager manager = context.getPackageManager();
		Intent intent = new Intent(Intent.ACTION_MAIN);
		List<ResolveInfo> infos = manager.queryIntentActivities(intent, 0);
		List<ComponentName> names = new ArrayList<ComponentName>();
		List<Map<String, String>> list = new ArrayList<Map<String, String>>();
		for (ResolveInfo info : infos) {
			ComponentName cn = new ComponentName(info.activityInfo.packageName,
					info.activityInfo.name);
			names.add(cn);
		}
		IUsageStats mUsageStatsService = IUsageStats.Stub
				.asInterface(ServiceManager.getService("usagestats"));
		for (ComponentName name : names) {
			PkgUsageStats aStats = null;
			ApplicationInfo info = null;
			try {
				aStats = mUsageStatsService.getPkgUsageStats(name);
				info = manager.getApplicationInfo(name.getPackageName(),
						PackageManager.GET_META_DATA);
			} catch (Exception e) {
				e.printStackTrace();
			}
			if (aStats != null && info != null) {
				String appName = info.loadLabel(manager).toString();
				int count = aStats.launchCount;
				if (count == 0) {
					continue;
				}
				Map<String, String> map = new HashMap<String, String>();
				map.put("appName", appName);
				map.put("count", count + "");
				list.add(map);
			}
		}

这个只有在系统应用才可以用
所以 首先 需要加一个权限：
android.permission.PACKAGEUSAGESTATS

然后 需要把应用放在 System/app 下才能使用

需要在shell里执行命令：
mount -o remount,rw /system (需要root权限才可以使用)

    

    来源: 互联网  发布时间: 2014-02-18

关于省市的多级联动问题
写了个测试 使用gson进行数据的解析  代码如下:
String[] array = { "A", "B", "C", "D", "E", "F", "G", "H", "I", "J",
"K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V",
"W", "X", "Y", "Z" };
jsonText = "{\"B\":{\"rows\":[{\"id\":2,\"text\":\"北京市\"}]},\"G\":{\"rows\":[{\"id\":1988,\"text\":\"广州市\"},{\"id\":1958,\"text\":\"深圳\"}]},\"Q\":{\"rows\":[{\"id\":1373,\"text\":\"青岛市\"}]},\"T\":{\"rows\":[{\"id\":23,\"text\":\"天津市\"}]}}";
try {
List<City> mCityLst = new ArrayList<ActivityMain.City>();
Gson gson = new Gson();
JSONObject jsonObj = new JSONObject(jsonText);
for (int i = 0; i < array.length; i++) {
String key = array[i];
boolean isHas = jsonObj.has(key);
if (!isHas) {
System.out.println("没有字母：" + key);
continue;
}
String value = jsonObj.getString(key);
System.out.println("当前字母:" + key + "____" + value);
JSONObject jObj = new JSONObject(value);
String mVlaue = jObj.getString("rows");
List<City> cityLst = gson.fromJson(mVlaue,
new TypeToken<List<City>>() {
}.getType());
for (int j = 0; j < cityLst.size(); j++) {
City item = cityLst.get(j);
item.indexFlag = key;
System.out.println("开始累加:" + key);
mCityLst.add(item);
}
}
for (int i = 0; i < mCityLst.size(); i++) {
City city = mCityLst.get(i);
System.out.println("相关信息:" + city.id + "___" + city.text
+ "___" + city.indexFlag);
}
} catch (JSONException e) {
e.printStackTrace();
}

    

    来源: 互联网  发布时间: 2014-02-18

CCLayer的部分显示
void YourLayer::visit()
{
  glEnable(GL_SCISSOR_TEST);
  float floatScale = CC_CONTENT_SCALE_FACTOR();
glScissor(x * floatScale,y * floatScale,width * floatScale,height * floatScale);
CCLayer::visit();
  glDisable(GL_SCISSOR_TEST);
}