3. Use NSBundle and plist in ios, 3. iosnsbundle

3. Use NSBundle and plist in ios, 3. iosnsbundle

1. NSBundle

1> An NSBundle represents a folder, and the NSBundle can be used to access the corresponding folder.

2> Use mainBundle to access any resources in the Software Resource Package

3> Simulator Application installation path/Users/aplle/resource library/Application Support/iPhone Simulator/7.1/Applications

4> implement lazy loading only once

@ Property (nonatomic, strong) NSArray * imageData;-(NSArray *) imageData {if (_ imageData = nil) {// never initialized // initialize data // File: full path // NSBundle: A NSBundle represents a folder // use mainBundle to access any resources in the software resource package NSBundle * bundle = [NSBundle mainBundle]; // obtain imageData. plist full path NSString * path = [bundle pathForResource: @ "imageData" ofType: @ "plist"]; _ imageData = [NSArray arrayWithContentsOfFile: path];} return _ imageData ;}

2. Use of plist files based on poor scalability

* Create a plist

* Let plist load only once