High copy WeChat image selector

Including the switch folders,dynamic record user selected pictures and preview images, etc

Rendering

Project description

On the basis of this Demo Zhang Hongyang blog Android 超高仿微信图片选择器图片该这么加载，Major point of modification is as follows：

• 1、According to user selection dynamic display the number of the selected images
  
  
• 2、Increase the image preview function
  
  • 2.1：There are two pictures preview entry：①Click on the gridview image preview area (image upper right)；②Click the preview button in the lower-right corner of the window
    
    
  • 2.2：Pictures can be zoom 、shrink in the preview images interface
    
    
  • 2.3: In picture preview interface , you can select and deselect images，After exit picture preview interface，"depending on the situation" dynamic refresh the selection state of the pictures in the ImageGridShowActivity interface
    
    
  • 2.4：The above "depending on the situation" has the following two kinds：
    
    • 2.4.1: If the user click preview images, just preview images and did not do any operation selected, deselect photoes, so will not refresh ImageGridShowActivity interface when the user exit preview image interface
    • 2.4.2：If the user go in the interface when the selected images and exit the interface is different,so in the exit interface when dynamic refresh ImageGridShowActivity interface
      
      
  • 2.5：In the preview interface processing OOM
    
    
  • 2.6：To monitor physical return key, dynamic refresh ImageGridShowActivity interface
    
    
• 3、Modify the style of the interface
  
  • 3.1：Folder name does not display the problem
  • 3.2：File name error display problems
  • 3.3：Folders are selected by default problems
  • 3.4：The style of the folder options problems
    
    
• 4、The division of regional and preview images selected images
  
  
• 5、Optimize createAdapter() method, adapter created only once
  
  
• 6、Folder and images in reverse chronological order
  
  

中文版