仿Boss直聘-查看头像
发现Boss直聘app做的还是，比较不错的吧。。先看效果，致谢 Image-Zoomer GIF.gif 怎么用？ <pre> @Override public void onClick(View v) { super.onClick(v); if (R.id.tv == v.getId()) { startActivity(ZoomActivity.class); } else if (R.id.iv == v.getId()) { new BossZoomHelper(this, imageView, 400); } } </pre> 原理很简单， <pre> package org.alex.bosszoomanim; import android.animation.Animator; import android.animation.AnimatorListenerAdapter; import android.animation.AnimatorSet; import android.animation.ObjectAnimator; import android.app.Activity; import android.graphics.Bitmap; import android.graphics.Point; import android.graphics.Rect; import android.support.v7.widget.ContentFrameLayout; import android.view.View; import android.view.animation.DecelerateInterpolator; import android.widget.FrameLayout; import android.widget.ImageView; import org.alex.util.LogUtil; /** * 作者：Alex * 时间：2016/10/8 12:48 * 简述： */ public class BossZoomHelper { private Animator animator; private ImageView copyImageView; public BossZoomHelper(final Activity activity, final View originalView) { this(activity, originalView, 400); } public BossZoomHelper(final Activity activity, final View originalView, final long duration) { if (animator != null) { animator.cancel(); } final ContentFrameLayout container = (ContentFrameLayout) activity.findViewById(android.R.id.content); copyImageView = new ImageView(activity); int matchParent = FrameLayout.LayoutParams.MATCH_PARENT; FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(matchParent, matchParent); copyImageView.setLayoutParams(params); if (originalView instanceof ImageView) { copyImageView.setImageDrawable(((ImageView) originalView).getDrawable()); } else { Bitmap bm = view2Bitmap(originalView); if (bm != null) { copyImageView.setImageBitmap(bm); } } copyImageView.setVisibility(View.GONE); container.addView(copyImageView); final Rect startRect = new Rect(); final Rect endRect = new Rect(); Point offsetPoint = new Point(); originalView.getGlobalVisibleRect(startRect); /\*\* \* r 是 绝对（global）坐标参数，包含状态栏、ActionBar、底部虚拟键 \* globalOffset 用于将global坐标转换成local坐标，这里的local坐标，是相对于内容区的坐标，也就是除了状态栏和action bar和虚拟按键的区域。 \* \*/ container.getGlobalVisibleRect(endRect, offsetPoint); startRect.offset(-offsetPoint.x, -offsetPoint.y); endRect.offset(-offsetPoint.x, -offsetPoint.y); final float startScale; float scaleSize; float startScaleFinal; LogUtil.e("-offsetPoint.x = " + (-offsetPoint.x) + " -offsetPoint.y = " + (-offsetPoint.y)); LogUtil.e("startRect.width() = " + startRect.width() + " startRect.height() = " + startRect.height()); LogUtil.e("endRect.width() = " + endRect.width() + " endRect.height() = " + endRect.height()); if ((float) endRect.width() / (float) endRect.height() > (float) startRect.width() / (float) startRect.height()) { startScale = (float) startRect.height() / (float) endRect.height(); scaleSize = startScale \* (float) endRect.width(); startScaleFinal = (scaleSize - (float) startRect.width()) / 2.0F; startRect.left = (int) ((float) startRect.left - startScaleFinal); startRect.right = (int) ((float) startRect.right + startScaleFinal); } else { startScale = (float) startRect.width() / (float) endRect.width(); scaleSize = startScale \* (float) endRect.height(); startScaleFinal = (scaleSize - (float) startRect.height()) / 2.0F; startRect.top = (int) ((float) startRect.top - startScaleFinal); startRect.bottom = (int) ((float) startRect.bottom + startScaleFinal); } copyImageView.setPivotX(0.0F); copyImageView.setPivotY(0.0F); AnimatorSet showAnimatorSet = new AnimatorSet(); showAnimatorSet.setDuration(duration); showAnimatorSet.play(ObjectAnimator.ofFloat(copyImageView, View.X, new float[]{(float) startRect.left, (float) endRect.left})) .with(ObjectAnimator.ofFloat(copyImageView, View.Y, new float[]{(float) startRect.top, (float) endRect.top})) .with(ObjectAnimator.ofFloat(copyImageView, View.SCALE_X, new float[]{startScale, 1.0F})) .with(ObjectAnimator.ofFloat(copyImageView, View.SCALE_Y, new float[]{startScale, 1.0F})); showAnimatorSet.setInterpolator(new DecelerateInterpolator()); showAnimatorSet.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationStart(Animator animation) { copyImageView.setVisibility(View.VISIBLE); } public void onAnimationEnd(Animator animation) { animator = null; } public void onAnimationCancel(Animator animation) { destroy(originalView, container); } }); showAnimatorSet.start(); animator = showAnimatorSet; copyImageView.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { if (animator != null) { animator.cancel(); } copyImageView.setBackgroundColor(0); AnimatorSet hiddenAnimatorSet = new AnimatorSet(); hiddenAnimatorSet.play(ObjectAnimator.ofFloat(copyImageView, View.X, new float[]{(float) startRect.left})) .with(ObjectAnimator.ofFloat(copyImageView, View.Y, new float[]{(float) startRect.top})) .with(ObjectAnimator.ofFloat(copyImageView, View.SCALE_X, new float[]{startScale})) .with(ObjectAnimator.ofFloat(copyImageView, View.SCALE_Y, new float[]{startScale})); hiddenAnimatorSet.setInterpolator(new DecelerateInterpolator()); hiddenAnimatorSet.setDuration(duration); hiddenAnimatorSet.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationStart(Animator animation) { super.onAnimationStart(animation); } public void onAnimationEnd(Animator animation) { if (animator != null) { animator.cancel(); } destroy(originalView, container); } public void onAnimationCancel(Animator animation) { destroy(originalView, container); } }); hiddenAnimatorSet.start(); animator = hiddenAnimatorSet; } }); } private void destroy(View originalView, ContentFrameLayout container) { originalView.setAlpha(1.0F); copyImageView.setVisibility(View.GONE); container.removeView(copyImageView); animator = null; } private Bitmap view2Bitmap(View view) { view.setDrawingCacheEnabled(true); view.buildDrawingCache(); Bitmap bmp = view.getDrawingCache(); if (bmp == null) { return null; } Bitmap bp; bp = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight()); view.destroyDrawingCache(); return bp; } } </pre> https://github.com/Alex-Cin/BossAnim
