高仿微信可拖拽返回 PhotoView

基于 PhotoView

下载 APK 体验

特性

• 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.

使用

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()

小贴士

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.

欢迎 Star ,欢迎加入我的 Android 酒馆 :425983695

License

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

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.