android 启动 Activity 动画 不生效问题

	@Override

		public View getView(int position, View convertView, ViewGroup parent) {

			if (convertView == null) {

				convertView = mInflater.inflate(R.layout.activity_newtab, null);

				convertView.setOnClickListener(new OnClickListener() {

					@Override

					public void onClick(View v) {

						Intent intent = new Intent(mcontext, Detail.class);

						// intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

						int version = Integer

								.valueOf(android.os.Build.VERSION.SDK);

						if (version >= 5) {

							mcontext.startActivity(intent);

							mcontext.overridePendingTransition(

									android.R.anim.slide_in_left,

									android.R.anim.slide_out_right);

						}

					}

				});

			}

			return convertView;

		}