Hello, how do I implement https: bl.ocks.org mbostock . with a shader, which is also controlled by 4 contacts. this problem is aimed at the Objective-C language environment on the iOS platform. I want to assign it directly through the CATransform3D...
knowledge and technical principles related to the production of staff spectrum by 1.ios 2.MIDI file parsing or sib file parsing 3. Implement parsing the midi or sib file into the staff spectrum and then have the playback function 4. There is a third p...
Undefined symbols for architecture x861464: "_ OBJC_CLASS_$_PLPlayerOption ", referenced from: objc-class-ref in MediaStreamingkitViewController.o "_ PLPlayerOptionKeyTimeoutIntervalForMediaPackets ", referenced from: -[MediaStreamingkitViewC...
create a public library, but keep reporting errors. Address: https: github.com shang12191. ...
problem description when you do IM live chat, when you receive a message, you will display a small red corner sign on the icon of App, and there are several unread messages. Then the chat list shows the number of unread messages for a specific person,...
- (void)viewDidLoad { [super viewDidLoad]; NSArray * imageList = @[@"Googleplus",@"Twitter",]; UIImageView * imageView = [[UIImageView alloc]initWithFrame:CGRectMake(20, 20, 100, 100)]; imageView.backgroundColor = ...
as shown in the picture what is the meaning of the + sign and the letter? ...
to build a system that supports multiple time zones, I was thinking, what format would be better to save the time zone? Is there a standard for this? Asia Shanghai GMT+8 save an Offset, for example, + 8 is 28800 ...
< H1 > define cellWithClassIdentifier (Class,identifier) < H1 > + (instancetype) cellWithTableView: (UITableView ) tableView identifier: (NSString ) identifier { Class * cell = [tableView dequeueReusableCellWithIdentifier:identifier]; if (! ce...
I want to record the screen using the feature that replaykit2 can record across app. Now I have integrated Broadcast Upload Extension and can use - (void)processSampleBuffer:(CMSampleBufferRef)sampleBuffer withType:(RPSampleBufferType)sampleBufferType ...
use Qiniu SDK to play local MP4 without sound. Do you encounter this situation? even if the sound is turned on at 3, there is no sound ....
when using Qiniuyun short video SDK, it sometimes flashes back and reports an error: Pili-ShortVideo-Authorization PLShortVideo SDK authorization status error: auth failed! -[PLSNoitacitnehtua requestData] _ block_invoke PLSNoitacitnehtua.m:81 have you...
as mentioned above, I am using the native form of h5 + to develop iOS and Android for fast integration and uniform style. but in iOS development, after I jump to the next page, using gestures to return to the navigation bar will turn white, and it is n...
A private method is used to get the corresponding accessorBar, and then hide it var = accessory=subviewOfInputSetHostView.performSelector(Selector("placeheldView")).takeRetainedValue() How to write this sentence in OC? Ask the great god f...
problem description error message: [W] Pili-ShortVideo-Authorization PLShortVideo SDK authorization status error: auth failed! this problem occasionally occurs in the real machine test after it is integrated into Qiniu Cloud. Sometimes it is clear th...
is there any way to package block once so that the self, effect is the same as weakself,strongself both inside and outside? ...
Special characters are restricted 24 CAN ...
I have several questions to ask for help Press the button when coming, and the screen will display "XXX tone connection " as follows https: imgur.com bw5l6pY then start to calculate the call time now I want him to stay in the XXX connectio...
the OC project cocoapods has installed a Swift library, how to call it? ...
problem description do you need to judge the system version number when introducing the header file library? our app supports iOS8.0 at a minimum. I now need to use a library that is only available in iOS9.0. In this case, do you need to judge the sy...
ORDER BY clause is not in GROUP BY..this is incompatible with sql_mode=only_full_group_by, is it solved by sql statement without modifying the configuration? reference address for modifying the configuration: mysql query error: ORDER BY clause is not...
use v-for loop to output variables, the variable is the hyperlink href address, curnew.url is the stored url address, how to write href? The related code is as follows: <el-col :offset="4" :span="16" v-for="curnew in...
what is the way to determine how a form is submitted in an PHP file? can I use if ($_ GET) in my example to determine whether the form is submitted or not? <form method="get"> <input type="text" name="num1"...
three.js frame of WEBGL I created a cylinder with the geometric model of CylinderGeometry, but I only want to paste it on the side of the arc. I don t want to paste the bottom of the arc. How to deal with this? Or is there any way to achieve it? ...
vue.js uses elemetui s tree, two-level provincial and municipal selection. The page is on dialog. If you click dislog, you will return the label value of tree and the label value of the corresponding parent province to add to the superior form. If all p...