Iphone document Image Storage and reading,

Iphone document Image Storage and reading,
Save: Java code 

1. // Specify the image access path (written to the application sandbox by default)
2. NSArray * paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES );
4. // Give the file a file name
5. NSString * uniquePath = [[paths objectAtIndex: 0] stringByAppendingPathComponent: @ "pin.png"];
6. BOOL blHave = [[NSFileManager defaultManager] fileExistsAtPath: uniquePath];
7. If (blHave ){
8. NSLog (@ "already have ");
9. Return;
10. }
11. // The method is to write the image to the Documents file. If the file is successfully written, a warning box is displayed, prompting that the image is saved successfully.
12. NSString * strPathOld = [[NSBundle mainBundle] pathForResource: @ "pin" ofType: @ "png"];
13. NSData * data = [NSData dataWithContentsOfFile: strPathOld];
14. BOOL result = [data writeToFile: uniquePath atomically: YES];
15. If (result ){
16. NSLog (@ "success ");
17. } Else {
18. NSLog (@ "no success ");
19. }

Java code  

1. NSFileManager * fileManager = [NSFileManager defaultManager];
2. NSArray * paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES );
3. NSString * documentsDirectory = [paths objectAtIndex: 0];
4. NSString * filePath2 = [documentsDirectory stringByAppendingPathComponent: @ "pin.png"];
5. UIImage * img = [UIImage imageWithContentsOfFile: filePath2];
6. [Image setImage: img];
7. NSLog (@ "image ::::::::::%@", image. image );

Delete: Java code  

1. NSFileManager * fileManager = [NSFileManager defaultManager];
2. NSArray * paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES );
4. // File name
5. NSString * uniquePath = [[paths objectAtIndex: 0] stringByAppendingPathComponent: @ "pin.png"];
6. BOOL blHave = [[NSFileManager defaultManager] fileExistsAtPath: uniquePath];
7. If (! BlHave ){
8. NSLog (@ "no have ");
9. Return;
10. } Else {
11. NSLog (@ "have ");
12. BOOL blDele = [fileManager removeItemAtPath: uniquePath error: nil];
13. If (blDele ){
14. NSLog (@ "dele success ");
15. } Else {
16. NSLog (@ "dele fail ");
17. }
19. }