本文参考自Android不规则点击区域详解 做了点击区域的优化
通过像素颜色（这里是透明）判断，拦截（不消费）MotionEvent.ACTION_DOWN事件
package org.ahiwey.anomalylayout;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Color;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.view.MotionEvent;
import androidx.constraintlayout.widget.ConstraintLayout;
/**
* 说明:不规则按钮（布局）的点击
* 原理是点击空白像素时不消费MotionEvent#ACTION_DOWN事件
* 继承的ConstraintLayout可以用你熟悉的LinearLayout和RelatedLayout代替
* 项目: AnomalyLayout
* 创建者: ahiwey
* 创建时间: 2020/5/25 17:46
* 来自: null
*/
public class AnomalyLayout extends ConstraintLayout {
private int width = -1;
private int height = -1;
private Bitmap bitmap;
public AnomalyLayout(Context context) {
super(context);
}
public AnomalyLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public AnomalyLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN://只有按下时才继续往下运行
break;
case MotionEvent.ACTION_UP:
performClick();
default:
return super.onTouchEvent(event);
}
float x = event.getX();
float y = event.getY();
if (x < 0 || y < 0) {
return false;
}
if (width == -1 || height == -1) {
Drawable drawable = getBackground().getCurrent();
bitmap = ((BitmapDrawable) drawable).getBitmap();
width = getWidth();
height = getHeight();
}
if (bitmap == null || x >= width || y >= height) {
return false;
}
// 直接bitmap.getPixel(x,y)可能会抛出IllegalArgumentException，x must be < bitmap.width()或y must
// be < bitmap.height()
//这里是取相对位置的像素
int pixel = bitmap.getPixel((int) (bitmap.getWidth() * x / width),
(int) (bitmap.getHeight() * y / height));
if (Color.TRANSPARENT == pixel) {
return false;
}
return super.onTouchEvent(event);
}
@Override
public boolean performClick() {
return super.performClick();
}
}<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorPrimary"
tools:context=".MainActivity">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="@+id/cl_program_bottom"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent">
<org.ahiwey.anomalylayout.AnomalyLayout
android:id="@+id/al_left"
android:layout_width="0dp"
android:layout_height="40dp"
android:background="@drawable/sl_al_left"
android:clickable="true"
android:focusable="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent">
<Button
android:id="@+id/btn_add"
android:layout_width="24dp"
android:layout_height="24dp"
android:layout_marginStart="50dp"
android:background="@drawable/ic_left_normal"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:layout_width="40dp"
android:layout_height="40dp"
android:gravity="center"
android:text="@string/add"
android:textColor="#FFFFFF"
android:textSize="16sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toRightOf="@+id/btn_add"
app:layout_constraintTop_toTopOf="parent" />
</org.ahiwey.anomalylayout.AnomalyLayout>
<org.ahiwey.anomalylayout.AnomalyLayout
android:id="@+id/al_middle"
android:layout_width="0dp"
android:layout_height="40dp"
android:background="@drawable/sl_al_middle"
android:clickable="true"
android:focusable="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent">
<Button
android:id="@+id/btn_play"
android:layout_width="24dp"
android:layout_height="30dp"
android:background="@drawable/ic_middle_normal"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_gravity="center"
android:duplicateParentState="true"
android:gravity="center"
android:text="@string/play"
android:textColor="@color/sl_tv_text"
android:textSize="16sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toRightOf="@id/btn_play"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</org.ahiwey.anomalylayout.AnomalyLayout>
<org.ahiwey.anomalylayout.AnomalyLayout
android:id="@+id/al_right"
android:layout_width="0dp"
android:layout_height="40dp"
android:background="@drawable/sl_al_right"
android:clickable="true"
android:focusable="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent">
<Button
android:id="@+id/btn_edit"
android:layout_width="24dp"
android:layout_height="24dp"
android:background="@drawable/ic_right_normal"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toLeftOf="@+id/tv_edit"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/tv_edit"
android:layout_width="40dp"
android:layout_height="20dp"
android:layout_marginEnd="60dp"
android:gravity="center"
android:text="@string/edit"
android:textColor="#FFFFFF"
android:textSize="16sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</org.ahiwey.anomalylayout.AnomalyLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
左边布局
中间布局，在“播放”TextView子控件增加了android:duplicateParentState="true"属性
右边布局，因为未在布局里添加android:clickable="true"、android:focusable="true"属性或代码里设置点击监听
1.继承Button的话就是不规则按钮 2.继承自布局的话就是不规则布局