Android编程获取APP应用程序基本信息辅助类【APP名称、包名、图标，版本号等】

//跟App相关的辅助类public class AppUtils { /**  * 获取应用程序名称  */ public static synchronized String getAppName(Context context) {  try {   PackageManager packageManager = context.getPackageManager();   PackageInfo packageInfo = packageManager.getPackageInfo(     context.getPackageName(), 0);   int labelRes = packageInfo.applicationInfo.labelRes;   return context.getResources().getString(labelRes);  } catch (Exception e) {   e.printStackTrace();  }  return null; } /**  * [获取应用程序版本名称信息]  * @param context  * @return 当前应用的版本名称  */ public static synchronized String getVersionName(Context context) {  try {   PackageManager packageManager = context.getPackageManager();   PackageInfo packageInfo = packageManager.getPackageInfo(     context.getPackageName(), 0);   return packageInfo.versionName;  } catch (Exception e) {   e.printStackTrace();  }  return null; } /**  * [获取应用程序版本名称信息]  * @param context  * @return 当前应用的版本名称  */ public static synchronized int getVersionCode(Context context) {  try {   PackageManager packageManager = context.getPackageManager();   PackageInfo packageInfo = packageManager.getPackageInfo(     context.getPackageName(), 0);   return packageInfo.versionCode;  } catch (Exception e) {   e.printStackTrace();  }  return 0; } /**  * [获取应用程序版本名称信息]  * @param context  * @return 当前应用的版本名称  */ public static synchronized String getPackageName(Context context) {  try {   PackageManager packageManager = context.getPackageManager();   PackageInfo packageInfo = packageManager.getPackageInfo(     context.getPackageName(), 0);   return packageInfo.packageName;  } catch (Exception e) {   e.printStackTrace();  }  return null; } /**  * 获取图标 bitmap  * @param context  */ public static synchronized Bitmap getBitmap(Context context) {  PackageManager packageManager = null;  ApplicationInfo applicationInfo = null;  try {   packageManager = context.getApplicationContext()     .getPackageManager();   applicationInfo = packageManager.getApplicationInfo(     context.getPackageName(), 0);  } catch (PackageManager.NameNotFoundException e) {   applicationInfo = null;  }  Drawable d = packageManager.getApplicationIcon(applicationInfo); //xxx根据自己的情况获取drawable  BitmapDrawable bd = (BitmapDrawable) d;  Bitmap bm = bd.getBitmap();  return bm; }}