高仿微信可拖拽返回PhotoView

##下载APK体验

• 拖拽缩放图片,并且结束Activity
• 其他PhotoView所有特性如下:

• Out of the box zooming, using multi-touch and double-tap.
• Scrolling, with smooth scrolling fling.
• Works perfectly when used in a scrolling parent (such as ViewPager).
• Allows the application to be notified when the displayed Matrix has changed. Useful for when you need to update your UI based on the >current zoom/scroll position.
• Allows the application to be notified when the user taps on the Photo.

修改你的 build.gradle文件

//root project
allprojects {
		repositories {
			...
			maven { url 'https://jitpack.io' }
		}
	}
    
//module project
    	dependencies {
	        compile 'com.github.githubwing:DragPhotoView:1.0.1'
	}
    

使用法放和普通的ImageView一毛一样

	// 所有ImageView用法都可以	
	DragPhotoView photoView = (DragPhotoView)findViewById(R.id.photoView);
	photoView.setImageResource(R.drawable.ram);
	//必须添加一个onExitListener,在拖拽到底部时触发.	
	photoView.setOnExitListener()
	
	photoView.setOnTapListener()

想要达到demo效果,需要把你的Activity背景改为透明

修改style.xml

  <style name="translucent" parent="Theme.AppCompat.Light.NoActionBar">
        <item name="android:windowBackground" >@android:color/transparent</item>
        <item name="android:windowIsTranslucent">true</item>
    </style>

全版本共享元素实现(包括Activity转跳和拖拽共享元素)在Demo里,如有需要,参照demo思路实现即可.

Copyright 2016 androidwing1992

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

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