ApkUtils

import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.Uri;
import java.io.File;
public class ApkUtils {
   private static final String TAG = ApkUtils.class.getSimpleName();
   /**
    * 获取应用程序名称
    */
   public static 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 (NameNotFoundException e) {
         e.printStackTrace();
      }
      return null;
   }

   /**
    * [获取应用程序版本名称信息]<BR>
    *
    * @param context
    * @return 当前应用的版本名称
    */
   public static String getVersionName(Context context) {
      try {
         PackageManager packageManager = context.getPackageManager();
         PackageInfo packageInfo = packageManager.getPackageInfo(context.getPackageName(), 0);
         return packageInfo.versionName;
      } catch (NameNotFoundException e) {
      }
      return null;
   }
   /**
    * @return 当前程序的版本号
    */
   public static int getVersionCode(Context context) {
      int version;
      try {
         PackageManager pm = context.getPackageManager();
         PackageInfo packageInfo = pm.getPackageInfo(context.getPackageName(), 0);
         version = packageInfo.versionCode;
      } catch (Exception e) {
         e.printStackTrace();
         version = 0;
      }
      return version;
   }

   /**
    * 得到安装的intent
    * @param apkFile
    * @return
    */
   public static Intent getInstallIntent(File apkFile) {
      Intent intent = new Intent();
      intent.setAction(Intent.ACTION_VIEW);
      intent.setDataAndType(Uri.fromFile(new File(apkFile.getAbsolutePath())),
            "application/vnd.android.package-archive");
      intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
      return intent;
   }

}