Android/Java - 在列表视图中单击图像

我在Android Studio中创建了一个listview。 listview在每个项目中都有一个图像，但我不知道如何使它可点击。我确实浏览了互联网寻找解决方案，但最难的部分似乎是在我自己的代码中实现它。我无法弄清楚。Android/Java - 在列表视图中单击图像

形象问题= ex_img

- 请记住点击图像时，也应该知道其在列表中的位置。

感谢您的阅读，我希望您能帮助我。

适配器列表：

public class CustomList extends ArrayAdapter<String> { 
    private String[] ex_name; 
    private String[] ex_diff; 
    private String[] ex_muscle; 
    private String[] ex_dpr; 
    private Integer[] ex_img; 
    private Activity context; 

    public CustomList(Activity context, String[] ex_name, String[] ex_diff, String[] ex_muscle, String[] ex_dpr, 
         Integer[] ex_img) { 
     super(context, R.layout.row_layout, ex_name); 
     this.context = context; 
     this.ex_name = ex_name; 
     this.ex_muscle = ex_muscle; 
     this.ex_diff = ex_diff; 
     this.ex_dpr = ex_dpr; 
     this.ex_img = ex_img; 

    } 
//LIST --> XML 
    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 
     LayoutInflater inflater = context.getLayoutInflater(); 
     View listViewItem = inflater.inflate(R.layout.row_layout, null, true); 
     TextView list_name = (TextView) listViewItem.findViewById(R.id.ex_name); 
     TextView list_diff = (TextView) listViewItem.findViewById(R.id.ex_diff); 
     TextView list_muscle = (TextView) listViewItem.findViewById(R.id.ex_muscle); 
     ImageView list_image = (ImageView) listViewItem.findViewById(R.id.ex_img); 
     TextView list_dpr = (TextView) listViewItem.findViewById(R.id.ex_dpr); 

     list_name.setText(ex_name[position]); 
     list_muscle.setText(ex_muscle[position]); 
     list_diff.setText(ex_diff[position]); 
     list_dpr.setText(ex_dpr[position]); 
     list_image.setImageResource(ex_img[position]); 

     return listViewItem; 

    } 
}

从MainActivity部分，可能需要：

private Integer img[] = { 
      R.drawable.ic_favorite_white_24dp, 
      R.drawable.ic_location_on_white_24dp, 
      R.drawable.ic_update_white_24dp, 
      R.drawable.ic_local_dining_white_24dp, 
      R.drawable.ic_local_dining_white_24dp 

    }; 


    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     CustomList customList = new CustomList(this, name, diff, muscle, dpr, img); 

     listView = (ListView) findViewById(R.id.listview); 
     listView.setAdapter(customList); 

     listView.setOnItemClickListener(new AdapterView.OnItemClickListener() { 
      @Override 
      public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) { 
       Toast.makeText(getApplicationContext(),"You Clicked "+name[i],Toast.LENGTH_SHORT).show(); 
      } 
     }); 
    }

来源

2016-04-21 Calis

您已经实现了'OnItemClickListener'。你有这个位置。当任何列表项目视图被点击'onItemClick'将被调用。 –

因此，当我想要在重叠的图像上单击时，这是件不好的事情？ – Calis

添加onClickListener您ImageView在getView() -

list_image.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       //Here you have the position too. 
});

只是使position参数final在getView()

来源

2016-04-21 19:31:42

我听说最终是一件坏事。这实际上是我已经拥有的代码。感谢您清除它。试试吧！ – Calis

让它最终成为一个好习惯。向我发送一个链接，您可以在此找到该信息。 –

http://stackoverflow.com/questions/24144663/make-a-variable-final-in-android-studio – Calis

Android/Java - 在列表视图中单击图像

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