自定义view

1、水平and 垂直seekbar

package com.qiyi.shortvideo.videocap.utils;

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.SeekBar;

import com.qiyi.shortvideo.R;

/**
 * Created by LiWeiping on 2019/12/4.
 * 水平seeekbar和竖直seekbar
 */

@SuppressLint("AppCompatCustomView")
public class VHSeekBar extends SeekBar {
    private int seekBarType;
    public enum SeekBarType{
        VerticalSeekBarType(0),
        HorizontalNormalType(1);
        public int value;
        SeekBarType(int value) {
            this.value = value;
        }
    }

    public VHSeekBar(Context context) {
        super(context);
        initData(context, null);
    }

    public VHSeekBar(Context context, AttributeSet attrs) {
        super(context, attrs);
        initData(context, attrs);
    }

    public VHSeekBar(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        initData(context, attrs);
    }

    private void initData(Context context, AttributeSet attrs){
        if (attrs != null) {
            TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.VHSeekBar);
            seekBarType = typedArray.getInt(R.styleable.VHSeekBar_VHSeekBarType, SeekBarType.HorizontalNormalType.value);
            typedArray.recycle();
        }
    }

    @Override
    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
        if(seekBarType == SeekBarType.VerticalSeekBarType.value){
            super.onSizeChanged(h, w, oldh, oldw);
        }else{
            super.onSizeChanged(w, h, oldw, oldh);
        }
    }

    @Override
    protected synchronized void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    }

    @Override
    protected synchronized void onDraw(Canvas canvas) {
        if(seekBarType == SeekBarType.VerticalSeekBarType.value){
            canvas.rotate(-90);
            canvas.translate(-getHeight(), 0);
        }
        super.onDraw(canvas);
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        super.onTouchEvent(event);

        if (seekBarType == SeekBarType.VerticalSeekBarType.value) {
            if (!isEnabled()) {
                return false;
            }
            switch (event.getAction()) {
                case MotionEvent.ACTION_DOWN:
                case MotionEvent.ACTION_MOVE:
                case MotionEvent.ACTION_UP:
                    setProgress(getMax()
                            - (int) (getMax() * event.getY() / getHeight()));
                    onSizeChanged(getWidth(), getHeight(), 0, 0);
                    break;
                case MotionEvent.ACTION_CANCEL:
                    break;
            }
        }

        return true;
    }
}

arrays.xml文件：
<?xml version="1.0" encoding="utf-8"?>
<resources>
    <declare-styleable name="VHSeekBar">
        <attr name="VHSeekBarType" format="enum">
            <enum name="VerticalSeekBarType" value="0"/>
            <enum name="HorizontalNormalType" value="1"/>
        </attr>
    </declare-styleable>

</resources>

    <com.example.myapplication.VHSeekBar
        android:id="@+id/mopi_progress"
        android:layout_height="20dp"
        android:layout_width="250dp"
        android:max="100"
        android:maxHeight="3dp"
        android:minHeight="3dp"
        android:progress="50"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toBottomOf="@id/tv_1"
        android:layout_marginTop="80dp"
        android:progressDrawable="@drawable/sv_seek_progress_bg"
        android:thumb="@drawable/seekbar_thumb_white_15_10"
        app:VHSeekBarType="HorizontalNormalType"/>

sv_seek_progress_bg.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@android:id/background">
        <shape>
            <corners android:radius="3dp" />
            <solid android:color="#4c616161" />
        </shape>
    </item>

    <item android:id="@android:id/progress">
        <clip
            android:clipOrientation="horizontal"
            android:gravity="left">
            <shape>
                <corners android:radius="3dp" />
                <gradient
                    android:startColor="#FF0AA6"
                    android:endColor="#0DFCFF" />
            </shape>
        </clip>
    </item>
</layer-list>

seekbar_thumb_white_15_10.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#FFFFFF"/>
    <size android:width="14dp" android:height="14dp"/>
    <corners android:radius="7dp"/>
</shape>