开源项目Meizhi学习笔记--VideoImageView

2019-11-09 18:12:09

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VideoImageView

黑发不知勤学早，看看又是白头翁

VideoImageView用于显示视频的预览图，但是在Meizhi项目中并未触发效果。我单独把它弄成一个项目，以下是效果图。

这里写图片描述布局代码

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_video_image_view" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="rc.loveq.customdialog.VideoImageViewActivity"> <rc.loveq.customdialog.VideoImageView android:id="@+id/video_image" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#2d1e1b" android:scaleType="centerCrop"/> /></RelativeLayout>

VideoImageViewActivity

@Override PRotected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_video_image_view); mVideoImage = (VideoImageView) findViewById(R.id.video_image); mVideoImage.setImageResource(R.mipmap.ic_launcher); }

VideoImageView

public class VideoImageView extends ImageView implements Animator.AnimatorListener { private boolean scale = false; public VideoImageView(Context context) { this(context, null); } public VideoImageView(Context context, AttributeSet attrs) { this(context, attrs, 0); } public VideoImageView(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); nextAnimation(); } private void nextAnimation() { AnimatorSet anim = new AnimatorSet(); if (scale) { anim.playTogether(ObjectAnimator.ofFloat(this, "scaleX", 1.5f, 1f), ObjectAnimator.ofFloat(this, "scaleY", 1.5f, 1f)); } else { anim.playTogether(ObjectAnimator.ofFloat(this, "scaleX", 1, 1.5f), ObjectAnimator.ofFloat(this, "scaleY", 1, 1.5f)); } anim.setDuration(10987); anim.addListener(this); anim.start(); scale = !scale; } @Override public void onAnimationCancel(Animator arg0) { } @Override public void onAnimationEnd(Animator animator) { nextAnimation(); } @Override public void onAnimationRepeat(Animator arg0) { } @Override public void onAnimationStart(Animator arg0) { }}

Android属性动画完全解析(上)，初识属性动画的基本用法 Android属性动画完全解析(中)，ValueAnimator和ObjectAnimator的高级用法 Android属性动画完全解析(下)，Interpolator和ViewPropertyAnimator的用法

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