单击时更改列表视图项的颜色

Question

是否可以在单击时更改列表视图项的颜色，并且在再次单击之前一直是该颜色？我使用适配器从 firebase 获取数据。

Answer 1

是的，可以在单击时更改列表视图中某个项目的颜色，并且在您再次单击之前它将一直是该颜色。只需在您的适配器中写一个项目，然后根据您的情况更改颜色。

    lv.setOnItemClickListener(new OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View view,
        int position, long id) {
          //Here you have view and position . so use both in a way you want.
    }
});

如果您需要另一个示例，请告诉我。 #KeepCoding

Answer 2

如果你只想换一次颜色：

listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
     @Override
     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

          view.setBackgroundColor(getResources().getColor(R.color.colorPrimary));

     }

});

您可以像这样切换列表视图项的更改：

listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

        LoadListerListViewObject currentObject = loadListerListViewObjectArrayList.get(position);
        //If the object is inactive...
        if (!currentObject.getIsActivated()) {
            //Set the object as active and change the color to green
            loadListerListViewObjectArrayList.set(position, new LoadListerListViewObject(currentObject.getDate(), currentObject.getTagNumber() true));
            view.setBackgroundColor(getResources().getColor(R.color.colorPrimary));
            //If the object is active...
              } else {
                 //Set the object as active and change the color to grey
                 loadListerListViewObjectArrayList.set(position, new LoadListerListViewObject(currentObject.getDate(), currentObject.getTagNumber(), false));
                 view.setBackgroundColor(getResources().getColor(R.color.colorGreyForButton));
              }

           }

       });

这使用关联列表视图对象的属性来检查项目是否已被选中，然后根据此更改颜色。我想您也想要 "un-change" 颜色。您可能需要这样的东西。

单击时更改列表视图项的颜色

Change colour of listview item when clicked

android

android-listview