Question

我有简单的自定义按钮：

public class myButton extends Button {
    public myButton (Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        commonConstructorCode();
    }


    public myButton (Context context, AttributeSet attrs) {
        super(context, attrs);
        commonConstructorCode();
    }

  public myButton (Context context) {
    super(context);
    commonConstructorCode();
  }

      private void commonConstructorCode() {
                this.setOnTouchListener(new OnTouchListener() {
      @Override
      public boolean onTouch(View v, MotionEvent event) {
                int action = event.getAction(); 

                    if(action == MotionEvent.ACTION_DOWN) 
                    {
                      //Just to be sure that we removed all callbacks, 
                      // which should have occurred in the ACTION_UP
                      removeCallbacks(repeatClickWhileButtonHeldRunnable);

                      //Perform the default click action.
                      performClick();
                      //if(v.isEnabled()){
                      //Schedule the start of repetitions after a one half second delay.
                      postDelayed(repeatClickWhileButtonHeldRunnable, initialRepeatDelay);
                      //} else {
                        //  removeCallbacks(repeatClickWhileButtonHeldRunnable);
                      //}
                    }
                    else if(action == MotionEvent.ACTION_UP) {
                      //Cancel any repetition in progress.
                      removeCallbacks(repeatClickWhileButtonHeldRunnable);
                    }
                //Returning true here prevents performClick() from getting called 
                // in the usual manner, which would be redundant, given that we are 
                // already calling it above.
                return true;
      }
    });
      }
}

带选择器

<?xml version="1.0" encoding="utf-8"?>
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
     <item android:state_pressed="true"
           android:drawable="@drawable/button_pressed" /> <!-- pressed -->
     <item android:state_focused="true"
           android:drawable="@android:color/white" /> <!-- focused -->
     <item android:drawable="@drawable/button_standard" /> <!-- default -->
 </selector>

由

设置

<com.blabla.myButton
    ...
    background="@drawable/button_selector" />

处于“正常”状态的背景很好。但其他州根本不起作用。有什么奇怪的 - 当我改变时

<com.blabla.myButton

到

<Button

选择器工作得很好。

有什么想法吗？

修改我添加了commonConstructorCode（）。

Answer 1

您可以尝试在自定义xml视图上设置此项。

android:focusable = "true"

我有一个类似的问题，并将焦点设置为true允许视图读取正确的状态并应用选择器。

Answer 2

我复制了你的代码并使自定义按钮选择器工作但设置：

        @Override
        public boolean onTouch(View v, MotionEvent event) {
            // Blah blah blah....
            return false; // this was return true
        }
    });

根据android文档，公共布尔值onTouch（），

返回：如果侦听器已使用该事件，则返回true，否则返回false。

因此，返回true表示您的方法已经消耗了该事件，并且似乎停止它会逐步修改层次结构并触发选择器状态。

Answer 3

在您的类的构造函数中，使用以下代码：

this.setBackgroundResource(drawable.button_selector);

我试试看。完美运作

自定义视图（按钮）背景选择器不起作用

3 个答案: