Android/Java - 在列表視圖中單擊圖像

我在Android Studio中創建了一個listview。 listview在每個項目中都有一個圖像，但我不知道如何使它可點擊。我確實瀏覽了互聯網尋找解決方案，但最難的部分似乎是在我自己的代碼中實現它。我無法弄清楚。Android/Java - 在列表視圖中單擊圖像

形象問題= ex_img

- 請記住點擊圖像時，也應該知道其在列表中的位置。

感謝您的閱讀，我希望您能幫助我。

適配器列表：

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; 

    } 
}

從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(); 
      } 
     }); 
    }

來源

2016-04-21 Calis

您已經實現了'OnItemClickListener'。你有這個位置。當任何列表項目視圖被點擊'onItemClick'將被調用。 –

因此，當我想要在重疊的圖像上單擊時，這是件不好的事情？ – 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參數final在getView()

來源

2016-04-21 19:31:42

我聽說最終是一件壞事。這實際上是我已經擁有的代碼。感謝您清除它。試試吧！ – Calis

讓它最終成爲一個好習慣。向我發送一個鏈接，您可以在此找到該信息。 –

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

Android/Java - 在列表視圖中單擊圖像

回答

相關問題