loading

问题 Well, I've got such a code: public class Main { public static void main(String[] args) { Test t; //1 Integer i = new Integer(1); //2 t = new Test(); //3 System.out.println(Test4.a); //4 } } class Test { private int a = 10; private Test2 t2; //5 List<Test2> list = new ArrayList<Test2>() { { for (int i = 0; i < a; i++) { add(new Test2()); //6 } } }; } class Test2 extends Test3{ } class Test3 { } class Test4 { public static final int a = 4; } I don't know how (fully or partially) and when

问题 I recently installed the latest version of R (3.4.0) and installed all of my packages, but for some reason rgdal will not load and I'm getting this message: library(rgdal) Error: package or namespace load failed for ‘rgdal’ in dyn.load(file, DLLpath = DLLpath, ...): unable to load shared object '/Library/Frameworks/R.framework/Versions/3.4/Resources/library/rgdal/libs/rgdal.so': dlopen(/Library/Frameworks/R.framework/Versions/3.4/Resources/library/rgdal/libs/rgdal.so, 6): Library not loaded:

问题 I have a kivy app, in which when a button is pressed, it starts communicating with the server and based on information obtained, it creates and fills the screen with widgets. Some actions are almost instant, some take considerable time in seconds. I want to implement a loading popup that is shown while the screen loads. I would also like to do it so that when loading takes less time than some configured time period, lets call it MIN_TIME, the popup does not show at all. Moreover, if the

问题 I have a kivy app, in which when a button is pressed, it starts communicating with the server and based on information obtained, it creates and fills the screen with widgets. Some actions are almost instant, some take considerable time in seconds. I want to implement a loading popup that is shown while the screen loads. I would also like to do it so that when loading takes less time than some configured time period, lets call it MIN_TIME, the popup does not show at all. Moreover, if the

问题 I have a kivy app, in which when a button is pressed, it starts communicating with the server and based on information obtained, it creates and fills the screen with widgets. Some actions are almost instant, some take considerable time in seconds. I want to implement a loading popup that is shown while the screen loads. I would also like to do it so that when loading takes less time than some configured time period, lets call it MIN_TIME, the popup does not show at all. Moreover, if the

问题 I searched all day but haven't find a solution yet. Today I installed Android Studio without any problems. I added the correct path. JAVA_HOME to C:\Program Files\Java\jdk1.8.0_20 and JDK_HOME to C:\Program Files\Java\jdk1.8.0_20 But, when I start the program it freezes on the loading screen. (The gray picture with the green android logo and text Android Studio) It does create a process that I can't close, but after waiting for 20 minutes it's still on that screen. I tried a clean install,

问题 I searched all day but haven't find a solution yet. Today I installed Android Studio without any problems. I added the correct path. JAVA_HOME to C:\Program Files\Java\jdk1.8.0_20 and JDK_HOME to C:\Program Files\Java\jdk1.8.0_20 But, when I start the program it freezes on the loading screen. (The gray picture with the green android logo and text Android Studio) It does create a process that I can't close, but after waiting for 20 minutes it's still on that screen. I tried a clean install,

问题 I searched all day but haven't find a solution yet. Today I installed Android Studio without any problems. I added the correct path. JAVA_HOME to C:\Program Files\Java\jdk1.8.0_20 and JDK_HOME to C:\Program Files\Java\jdk1.8.0_20 But, when I start the program it freezes on the loading screen. (The gray picture with the green android logo and text Android Studio) It does create a process that I can't close, but after waiting for 20 minutes it's still on that screen. I tried a clean install,

问题 I have a simple iOS native app that loads a single UIWebView. I would like the webView to show an error message if the app doesn't COMPLETELY finish loading the initial page in the webView within 20 seconds. I load my URL for the webView within my viewDidLoad like this (simplified): [webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.example.com"] cachePolicy:NSURLCacheStorageAllowed timeoutInterval:20.0]]; The timeoutInterval within the code above does not

问题 I have a simple iOS native app that loads a single UIWebView. I would like the webView to show an error message if the app doesn't COMPLETELY finish loading the initial page in the webView within 20 seconds. I load my URL for the webView within my viewDidLoad like this (simplified): [webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.example.com"] cachePolicy:NSURLCacheStorageAllowed timeoutInterval:20.0]]; The timeoutInterval within the code above does not