For interface a's present to interface B, data on interface a cannot be transmitted to interface B. After interface B dismisses, data on interface A is reset.

After ios7, data cannot be transmitted to the next interface.

The query shows that the next interface will initialize first, and viewdidload will be taken first. As a result, after the interface is loaded, the transmitted data cannot be displayed,

In general, this problem occurs when the transmitted data is downloaded to viewwillappear, Which is correctly displayed after the interface appears.

 

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LZ solves the data problem with viewwillappear. However, when the camera's uiimagepickercontroller and dismiss are called back, the current interface is reset, it refreshed the infinite cycle of the question caused by the first question of the answer,

LZ finally tried the solution after suffering for two days.

Use delayed call to solve the problem, and find that the data is actually transmitted, but there is no data during the display, and you can manually refresh the data after the delay.

For interface a's present to interface B, data on interface a cannot be transmitted to interface B. After interface B dismisses, data on interface A is reset.