Question

我的视图中有很多按钮。每个按钮可以有三个背景图像之一。我有一种情况，在一个按钮上单击其他人将状态更改为第一个背景图像。当然，我可以做出难看的切换，记住最后选择的按钮，但是对于这种情况可能有更好的解决方案吗？

由于

public class MyActivity extends Activity {

private Button bt1;
private Button bt3;
private Button bt4;
private Button bt5;
private Button bt6;
private Button bt7;
private Button bt8;
private Button bt9;

@Override
public void onCreate(Bundle savedInstanceState) {
...

bt1 = (Button) findViewById(R.id.bt1);
bt2 = (Button) findViewById(R.id.bt2);
bt3 = (Button) findViewById(R.id.bt3);
...

bt2.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            bt2.setBackgroundDrawable(getResources().getDrawable(
                        R.drawable.select_button2));
            bt1.setBackgroundDrawable(getResources().getDrawable(
                        R.drawable.no_select_button1));
            bt3.setBackgroundDrawable(getResources().getDrawable(
                        R.drawable.no_select_button3));
            ...
            bt9.setBackgroundDrawable(getResources().getDrawable(
                        R.drawable.no_select_button9));

        }
    });

  bt1.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            bt1.setBackgroundDrawable(getResources().getDrawable(
                        R.drawable.select_button1));
            bt2.setBackgroundDrawable(getResources().getDrawable(
                        R.drawable.no_select_button2));
            bt3.setBackgroundDrawable(getResources().getDrawable(
                        R.drawable.no_select_button3));
            ...
            bt9.setBackgroundDrawable(getResources().getDrawable(
                        R.drawable.no_select_button9));

        }
    });

还有其他办法吗？

Answer 1

我知道它的回答很晚但有人可能需要它。基于this githubt要点，将以下代码添加到OnClick方法：

@Override
public void onClick(View v) {
    Button button = (Button) v;

    // clear state
    mButton1.setSelected(false);
    mButton1.setPressed(false);
    mButton2.setSelected(false);
    mButton2.setPressed(false);
    mButton3.setSelected(false);
    mButton3.setPressed(false);

    // change state
    button.setSelected(true);
    button.setPressed(false);
   }

处理具有背景更改事件的多个按钮

1 个答案: