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;

   }

}