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PackageManager packageManager = this.getPackageManager();
List<ApplicationInfo> applicationInfos = packageManager.getInstalledApplications(0);
HashMap<String, String> resultMap = new HashMap<String, String>();
Iterator<ApplicationInfo> iterator = applicationInfos.iterator();
while(iterator.hasNext()){
ApplicationInfo applicationInfo = iterator.next();
String packageName = applicationInfo.packageName;// 包名
String packageLabel = packageManager.getApplicationLabel(applicationInfo).toString();//获取label
resultMap.put(packageLabel, packageName);
}