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1. Disable automatic content download and update.If your iPhone feels a little slow, it may be because the App Store automatically updates the App. Manual update is recommended. Update only when necessary! Go to Settings-iTunes Store and App Store, and disable automatic download updates!In addition to disabling automatic updates, you can also disable automatic updates for some other applications.2. Disable automatic background refreshThe application i

click on the pop-up "restore (the following image for reference only)", itunes began to upgrade the firmware update: The picture is for reference only, actually should show 8 5, after the upgrade we click "Restore from Backup ..." (Select the "Update" button, do not need to restore the backup, after activation to see): 6. Wait for the backup to complete, so we will upgrade to the IOS8 fi

View:, for example:Mypoint = [myview convertpoint: somepoint fromview: otherview]; The iPhone SDK does not yet CT you to move a view by changing its frame. instead, it provides you with a way to update a view's position. the preferred way to do this is by setting the view's center. Change a view's size onscreen by adjusting either its frame or its bounds.When a view's

This problem has plagued me for a long time. Solution 1: Before the package is generated, it must be iosdevices and cannot be inserted into the device! Solution 2: If the above method cannot be solved, check again. Each of the preceding items remains in a state. For example, all are Debug! Solution 3: if not, check the basic configuration, such as DeviceID! Fir submitted version of iphone4 iphone4s can not install iPhone

common body variable: union common body name variable name; size End---"Storage modeBig -Endian storage: Low-byte data stored at high addresses, high-byte data stored at low addressSmall-End storage: low-byte data stored at low addresses, high-byte data stored at high addresses 3. Enumeration----is generally used as the definition of error codeenum enum name {member 1,member 2,Members 3};Entry Training Note--day9 (1, pointer function and function poi