Question

在我的Android应用程序中，有一个在运行时加载的表格布局。我为表行设置了一个OnClickListener。

tr.setClickable(true);
tr.setOnClickListener(trOnClickListener);

我需要在单击时更改表格行的背景颜色。这是我的onClick方法。

private OnClickListener trOnClickListener = new OnClickListener() {
    public void onClick(View v) {

        TableRow tablerow = (TableRow)v;

        tablerow.setBackgroundDrawable(getResources().getDrawable(
                R.drawable.ab_stacked_solid_whiteaction));

    }
};

单击表格行时，会更改背景颜色。当我点击另一行时，它也会改变它的'＆＃39;背景颜色。但我想要的是，应该一次改变一行的背景颜色。

我该怎么做？任何建议都表示赞赏。

提前致谢

Answer 1

在drawable文件夹中创建XML并将其设置为bg

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

    <item android:drawable="@drawable/cell_shape_in_white" android:state_pressed="true"/>
    <item android:drawable="@drawable/cell_shape_in_grey"/>

</selector>

OR

 <selector xmlns:android="http://schemas.android.com/apk/res/android">


    <item android:drawable="@drawable/cell_shape_in_white" android:state_focused="true" android:state_pressed="false"/>
    <item android:drawable="@drawable/cell_shape_in_white" android:state_focused="true"/>
    <item android:drawable="@drawable/cell_shape_in_grey" android:state_focused="false"/>
    <item android:drawable="@drawable/cell_shape_in_grey"/>

</selector>

OR

请参阅链接How to change the background color of a TableRow when focused?

Answer 2

当选择并突出显示（黄色）其他行时，此非xml修复会导致先前选定的行恢复为中性表背景颜色（Lt。灰色）。这是通过引用所选（子）行的适当索引号来实现的。

public class dataTable extends Fragment {
TextView tvSelectedRow = null;
...
row.setOnClickListener(new View.OnClickListener(){
                @Override
                public void onClick(View v){
                    if(tvSelectedRow == null) {
                        iRowNumber = tableLayout.indexOfChild(v); //This returns the rowID of the selected row
                        tableLayout.setBackgroundResource(R.color.LtGrey); //sets background color to LtGray for whole table.
                        row.setBackgroundResource(R.color.yellow);//changes background color of selected row to yellow.                           
                    }else if(tvSelectedRow != null){
                        tableLayout.getChildAt(iRowNumber).setBackgroundResource(R.color.LtGrey);//causes previously selected row to revert to LtGray.
                        iRowNumber = tableLayout.indexOfChild(v); //Resets iRowNumber to new row selected by user....                      
                        row.setBackgroundResource(R.color.yellow);//changes background color of selected row to yellow.                           
                    }
                }
            });

祝你好运！

Answer 3

试试这个

private View pressedView = null; 

private OnItemClickListener getStartedListItem = new OnItemClickListener() {

@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position,
        long arg3) {
    // TODO Auto-generated method stub
     Intent myintent = new  Intent(getApplicationContext(),GetStartedWebview.class);
     myintent.putExtra("SelectedItem", getStartedItems[position]);
     startActivity(myintent);

     if(pressedView != null) {
         pressedView.setBackgroundResource(..); // reset background of old item
         pressedView = arg1; // Point pressedView to new item
     }
}
};

Android：单击表格行时更改背景颜色

3 个答案: