android 音乐波动动画_android 音乐播放动画-优快云博客

本文链接：https://blog.youkuaiyun.com/qq_28195645/article/details/53439142

该博客介绍了如何在Android应用中实现音乐播放时的随机波动动画，包括自定义音乐波动控件、定义插值器抽象类、创建音乐波动插值器以及设置控件属性。此外，还提供了在布局文件中直接使用的示例。

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需求：在播放音乐的时候，随机产生不规律动画

这里写图片描述

下载地址：http://download.youkuaiyun.com/detail/qq_28195645/9700355

自定义音乐波动控件

package com.sun.audioplayingwave.sloading;

import android.annotation.TargetApi;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.os.Build;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;

import com.sun.audioplayingwave.R;
import com.sun.audioplayingwave.sloading.indicator.BaseIndicatorController;
import com.sun.audioplayingwave.sloading.indicator.LineScaleIndicator;
import com.sun.audioplayingwave.sloading.indicator.LineScalePulseOutIndicator;
import com.sun.audioplayingwave.sloading.indicator.LineScalePulseOutThreeIndicator;
import com.sun.audioplayingwave.sloading.indicator.LineScalePulseOutWaveIndicator;



/**
 * Created by walkingMen on 2016/4/27.
 */
public class SLoadingIndicatorView extends View {
   
    private static final String TAG = SLoadingIndicatorView.class.getSimpleName();
    public static final int DefaultScale = 0;
    public static final int LineScale = 1;
    public static final int LineScalePulseOut = 2;
    public static final int LineScalePulseOutThree = 3;
    public static final int LineScalePulseOutWave = 4;

    //Sizes (with defaults in DP)
    public static final int DEFAULT_SIZE = 45;

    //attrs
    int mIndicatorId;
    int mIndicatorColor;

    Paint mPaint;
    BaseIndicatorController mIndicatorController;

    private boolean mHasAnimation;

    public SLoadingIndicatorView(Context context) {
        super(context);
        init(null, 0);
    }

    public SLoadingIndicatorView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init(attrs, 0);
    }

    public SLoadingIndicatorView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init(attrs, defStyleAttr);
    }

    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
    public SLoadingIndicatorView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        super(context, attrs, defStyleAttr, defStyleRes);
        init(attrs, defStyleAttr);
    }

    private void init(AttributeSet attrs, int defStyle) {
        TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.SLoadingIndicatorView);
        mIndicatorId = a.getInt(R.styleable.SLoadingIndicatorView_s_indicator, DefaultScale);
        mIndicatorColor = a.getColor(R.styleable.SLoadingIndicatorView_s_indicator_color, Color.WHITE);
        a.recycle();
        mPaint = new Paint();
        mPaint.setColor(mIndicatorColor);
        mPaint.setStyle(Paint.Style.FILL);
        mPaint.setAntiAlias(true);
        applyIndicator();
    }

    private void applyIndicator() {