How do I wake up another app before exiting the app?

Source: Internet
Author: User
<span id="Label3"></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;"></span></p></p><p style="margin-top: 0px; margin-bottom: 0px; padding-top: 5px; padding-bottom: 5px; color: rgb(92, 92, 92); font-size: 14px; background-color: rgb(245, 245, 245); line-height: 28px; font-family: ‘Hiragino Sans GB‘, ‘Microsoft Yahei‘, ‘Helvetica Neue‘, Helvetica, Arial, sans-serif; border: 0px; text-indent: 22px;"><p style="margin-top: 0px; margin-bottom: 0px; padding-top: 5px; padding-bottom: 5px; color: rgb(92, 92, 92); font-size: 14px; background-color: rgb(245, 245, 245); line-height: 28px; font-family: ‘Hiragino Sans GB‘, ‘Microsoft Yahei‘, ‘Helvetica Neue‘, Helvetica, Arial, sans-serif; border: 0px; text-indent: 22px;"><span style="font-family: KaiTi_GB2312; font-size: 18px; line-height: 26px;">Shimen The main contribution, respect the work of the author, please do not reprint.</span></p></p><p style="margin-top: 0px; margin-bottom: 0px; padding-top: 5px; padding-bottom: 5px; color: rgb(92, 92, 92); font-family: Arial; font-size: 14px; background-color: rgb(245, 245, 245); line-height: 28px; border: 0px; text-indent: 22px;"><p style="margin-top: 0px; margin-bottom: 0px; padding-top: 5px; padding-bottom: 5px; color: rgb(92, 92, 92); font-family: Arial; font-size: 14px; background-color: rgb(245, 245, 245); line-height: 28px; border: 0px; text-indent: 22px;"><span style="line-height: 26px;"><span style="color: rgb(119, 119, 119); text-align: center;"><span style="font-family: KaiTi_GB2312; font-size: 18px;">If the article is helpful to you, you are welcome to donate to the author, support the Shimen, donate the amount at random, ^_^</span></span><br></span></p></p><p style="margin-top: 0px; margin-bottom: 0px; padding-top: 5px; padding-bottom: 5px; color: rgb(92, 92, 92); font-family: Arial; font-size: 14px; background-color: rgb(245, 245, 245); line-height: 28px; border: 0px; text-indent: 22px;"><p style="margin-top: 0px; margin-bottom: 0px; padding-top: 5px; padding-bottom: 5px; color: rgb(92, 92, 92); font-family: Arial; font-size: 14px; background-color: rgb(245, 245, 245); line-height: 28px; border: 0px; text-indent: 22px;"><span style="line-height: 26px;"><span style="text-align: center;"><span style="font-family: KaiTi_GB2312; font-size: 18px;"><span style="color: rgb(119, 119, 119);">I want to donate:</span> click Donate</span></span></span></p></p><p style="margin-top: 0px; margin-bottom: 0px; padding-top: 5px; padding-bottom: 5px; color: rgb(92, 92, 92); font-family: Arial; font-size: 14px; background-color: rgb(245, 245, 245); line-height: 28px; border: 0px; text-indent: 22px;"><p style="margin-top: 0px; margin-bottom: 0px; padding-top: 5px; padding-bottom: 5px; color: rgb(92, 92, 92); font-family: Arial; font-size: 14px; background-color: rgb(245, 245, 245); line-height: 28px; border: 0px; text-indent: 22px;"><span style="line-height: 26px;"><span style="color: rgb(119, 119, 119); text-align: center;"><span style="font-family: KaiTi_GB2312; font-size: 18px;">Cocos2d-x source Download: Dot I teleport</span></span></span></p></p><br><p><p></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">The SDK does not provide a way to terminate the Application.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">To terminate the application, the only way Apple recommends is to press the home Button.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><br></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">But the foundation framework integrates the Darwin framework so that we can use the C function exit (0) to terminate Application.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family: KaiTi_GB2312;font-size:18px;"></span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">Uiapplication's OpenURL method is another way to exit the Application.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">When you call the OpenURL method in your code, your app process is terminated (suspended) and the other app is Awakened.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;"></span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">of course, the two exit apps are not the same mechanism and end Result.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">When you exit the program using exit (0), your app does not just exit the foreground, the memory used by the program is Cleared-it's unrecoverable.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">If launch again this app,ios will re-read binary from Disk-this is a brand new app Image.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;"></span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family: KaiTi_GB2312;font-size:18px;">OpenURL is different, It just hangs up your program, which is Recoverable.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family: KaiTi_GB2312;font-size:18px;">Your app just quits from the foreground, but still exists in the Background.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family: KaiTi_GB2312;font-size:18px;">The user can "wake up" it at some point, and your app is back, and the state of the application still wakes up.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family: KaiTi_GB2312;font-size:18px;">of course, If your luck is not good, iOS will completely recycle your app from memory,</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family: KaiTi_GB2312;font-size:18px;">As in exit (0), this is usually the time when system memory is tight.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;"></span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">Both of these methods may need to coexist at some Point.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">For example, we want to wake up another app, such as safari, before the app Exits.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">At the same time we want our app to be the real "exit" and recycle all of the App's memory.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;"><br></span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">This is a "paradox". Because regardless of exit (0) or openurl, once executed, the operating system terminates the execution of the PROCESS.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">As long as you execute any of these statements, the other statement cannot be executed-because the process has been terminated.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;"></span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">But in some cases, this paradox is true through the ingenious use of the multitasking mechanism of ios.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">For example, we can use the following O-C code to achieve this purpose:</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;"></span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">[self performselector: @selector (exitapp) withobject:nil afterdelay:0.5];</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">[[uiapplication Sharedapplication]openurl:</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">[nsurlurlwithstring:@ "appscheme://"];</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;"></span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">The Exitapp method is actually a code exit (0).</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">So they both Coexist.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;"><br></span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">first, we let exit (0) delay for 0.5 seconds before execution, and before that OpenURL of course Executed.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">The Performselector:afterdelay method dispatches a task to execute after a certain time.</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">Of course, this time cannot be too long, ".</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">Because iOS allows the app to still have a "live" time after entering the background, but this time is not too long,</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;">This means that after the execution of the OpenURL method, the app is still alive and there is a chance to perform the scheduled task (that is, exit (0)).</span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;"><br></span></p></p><p style="color: rgb(51, 51, 51); line-height: 26px;"><p style="color: rgb(51, 51, 51); line-height: 26px;"><span style="font-family:KaiTi_GB2312;font-size:18px;"></span></p></p><p style="margin-top: 0px; margin-bottom: 0px; padding-top: 5px; padding-bottom: 5px; color: rgb(92, 92, 92); font-size: 14px; background-color: rgb(245, 245, 245); line-height: 28px; font-family: ‘Hiragino Sans GB‘, ‘Microsoft Yahei‘, ‘Helvetica Neue‘, Helvetica, Arial, sans-serif; border: 0px; text-indent: 22px;"><p style="margin-top: 0px; margin-bottom: 0px; padding-top: 5px; padding-bottom: 5px; color: rgb(92, 92, 92); font-size: 14px; background-color: rgb(245, 245, 245); line-height: 28px; font-family: ‘Hiragino Sans GB‘, ‘Microsoft Yahei‘, ‘Helvetica Neue‘, Helvetica, Arial, sans-serif; border: 0px; text-indent: 22px;"><span style="font-family: KaiTi_GB2312; font-size: 18px; line-height: 26px;">Shimen The main contribution, respect the work of the author, please do not reprint.</span></p></p><p style="margin-top: 0px; margin-bottom: 0px; padding-top: 5px; padding-bottom: 5px; color: rgb(92, 92, 92); font-family: Arial; font-size: 14px; background-color: rgb(245, 245, 245); line-height: 28px; border: 0px; text-indent: 22px;"><p style="margin-top: 0px; margin-bottom: 0px; padding-top: 5px; padding-bottom: 5px; color: rgb(92, 92, 92); font-family: Arial; font-size: 14px; background-color: rgb(245, 245, 245); line-height: 28px; border: 0px; text-indent: 22px;"><span style="line-height: 26px;"><span style="color: rgb(119, 119, 119); text-align: center;"><span style="font-family: KaiTi_GB2312; font-size: 18px;">If the article is helpful to you, you are welcome to donate to the author, support the Shimen, donate the amount at random, ^_^</span></span><br></span></p></p><p style="margin-top: 0px; margin-bottom: 0px; padding-top: 5px; padding-bottom: 5px; color: rgb(92, 92, 92); font-family: Arial; font-size: 14px; background-color: rgb(245, 245, 245); line-height: 28px; border: 0px; text-indent: 22px;"><p style="margin-top: 0px; margin-bottom: 0px; padding-top: 5px; padding-bottom: 5px; color: rgb(92, 92, 92); font-family: Arial; font-size: 14px; background-color: rgb(245, 245, 245); line-height: 28px; border: 0px; text-indent: 22px;"><span style="line-height: 26px;"><span style="text-align: center;"><span style="font-family: KaiTi_GB2312; font-size: 18px;"><span style="color: rgb(119, 119, 119);">I want to donate:</span> click Donate</span></span></span></p></p><p style="margin-top: 0px; margin-bottom: 0px; padding-top: 5px; padding-bottom: 5px; color: rgb(92, 92, 92); font-family: Arial; font-size: 14px; background-color: rgb(245, 245, 245); line-height: 28px; border: 0px; text-indent: 22px;"><p style="margin-top: 0px; margin-bottom: 0px; padding-top: 5px; padding-bottom: 5px; color: rgb(92, 92, 92); font-family: Arial; font-size: 14px; background-color: rgb(245, 245, 245); line-height: 28px; border: 0px; text-indent: 22px;"><span style="line-height: 26px;"><span style="color: rgb(119, 119, 119); text-align: center;"><span style="font-family: KaiTi_GB2312; font-size: 18px;">Cocos2d-x source Download: Dot I teleport</span></span></span></p></p><p><p></p></p><p><p>How do I wake up another app before exiting the app?</p></p></span>

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.