不叨叨直接搞。
1.首先是在info.plist文件配置一下（增加两个key）：
Supports opening documents in place
Application supports iTunes file sharing
2.因为自己项目的[UINavigationBar appearance]的字体等设置的白色 所以导致present到UIDocumentPickerViewController时 虽然点右上角有反应但看不到按钮（因为UIDocumentPickerViewController的导航栏也是白色的）。基于此需要新建一个继承于UIDocumentPickerViewController的子类DocumentViewController。
#import <UIKit/UIKit.h>
@interface DocumentViewController : UIDocumentPickerViewController
@end
#import "DocumentViewController.h"
@interface DocumentViewController ()
@end
@implementation DocumentViewController
-(void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
//跟随系统颜色
[UINavigationBar appearance].tintColor = self.view.tintColor;
[[UINavigationBar appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName:self.view.tintColor}];
}
- (void)viewWillDisappear:(BOOL)animated {
[super viewWillDisappear:animated];
//跟随app颜色
[[UINavigationBar appearance] setTintColor:[UIColor whiteColor]];
[[UINavigationBar appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor whiteColor]}];
}
@end
当然你也可以像微信那样在子类中完成自己的（原谅色）风格定制。
3.接下来就简单了 我只需要上传pdf 所以... 拿到文件data 新建一个文件夹写到本地沙盒
#pragma mark -- 选择文件
- (void)goSelcetPdf {
NSArray *documentTypes = @[@"com.adobe.pdf"];
DocumentViewController *documentPickerViewController = [[DocumentViewController alloc] initWithDocumentTypes:documentTypes inMode:UIDocumentPickerModeOpen];
documentPickerViewController.delegate = self;
[self presentViewController:documentPickerViewController animated:YES completion:nil];
}
#pragma mark - UIDocumentPickerDelegate
- (void)documentPicker:(UIDocumentPickerViewController *)controller didPickDocumentsAtURLs:(nonnull NSArray<NSURL *> *)urls {
BOOL fileUrlAuthozied = [urls.firstObject startAccessingSecurityScopedResource];
if(fileUrlAuthozied) {
//通过文件协调工具来得到新的文件地址，以此得到文件保护功能
NSFileCoordinator *fileCoordinator = [[NSFileCoordinator alloc] init];
NSError*error;
[fileCoordinatorcoordinateReadingItemAtURL:urls.firstObject options:0 error:&error byAccessor:^(NSURL *newURL) {
//读取文件
fileName= [newURLlastPathComponent];
NSError*error =nil;
NSData *fileData = [NSData dataWithContentsOfURL:newURL options:NSDataReadingMappedIfSafe error:&error];
if(error) {
//读取出错
}else{
//保存
pdfData= fileData;
NSArray*paths =NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString*path = [pathsobjectAtIndex:0];
path = [pathstringByAppendingString:@"/YWBG"];
if (![[NSFileManager defaultManager] fileExistsAtPath:path]) {
[[NSFileManager defaultManager] createDirectoryAtPath:path withIntermediateDirectories:YES attributes:nil error:nil];
}
pathUrl = [path stringByAppendingPathComponent:fileName];
[pdfData writeToFile:pathUrl atomically:YES];
}
[self dismissViewControllerAnimated:YES completion:NULL];
}];
[urls.firstObject stopAccessingSecurityScopedResource];
}else{
//授权失败
}
}
水平有限 不喜来喷。。。
