Android获取APP的应用程序名称、包名、图标，版本号基本信息

经常会用到获取App信息，可以用这个工具类,可以获得 APP的应用程序名称、包名、图标，版本号基本信息
/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;      }    }
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