小编Gly*_*pse的帖子

我正在尝试创建一个新的画廊风格应用程序,因为Gallery已经折旧.

我遇到的主要问题是,当我尝试运行以下代码时,我无法动摇错误"dimen无法解决或不是字段".我已经阅读了一些网站和一些帖子,说它与导入"import com.example.test.R;"有关.然而即使有这样的错误仍然存​​在,如果有人可以帮助它将是惊人的.

Gall.java:

package com.example.test;

import android.app.Activity;
import android.os.Bundle;
import android.support.v4.view.ViewPager;



public class Gall extends Activity {


    @Override
    public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_gall);

      ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager);
      ImgAdapt adapter = new ImgAdapt(this);
      viewPager.setAdapter(adapter);
    }

  }

activity_gall.xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <android.support.v4.view.ViewPager
    android:id="@+id/view_pager"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

</RelativeLayout>

ImgAdapt.java:

package com.example.test;

import android.content.Context;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;




public class ImgAdapt extends PagerAdapter {
Context context;

private …