set the canvas size to 750rpx and 1340rpx; you want to set the background image with a picture drawImage. But the start position in canvas is 0, but I don"t know what to do when setting the end position. Ask God for an answer. Thank you
set the canvas size to 750rpx and 1340rpx; you want to set the background image with a picture drawImage. But the start position in canvas is 0, but I don"t know what to do when setting the end position. Ask God for an answer. Thank you
you can use wx.chooseImage (OBJECT) to get the length and width of the picture, and then set it to the parameters when drawing.
recently, we are going to do a leave function. Student A submitted an application for leave, which was then reviewed by teacher B, but later I found that I needed a reminder function on Wechat s message end. It seems that Wechat can only use template me...
various methods have been tried, including the simplest way to disable the thouchmove event directly. Has the Wechat browser under ios been unable to stop the rebound? ...
wrote an H5 page. According to the official description of Wechat jssdk, it is found that the shared icons and descriptions are invalid. the code is like this ....
do you want to know whether Mini Program and Mini Program, whose users enter from a specific channel, have such a function or method ...
RT, such as Safari, click on a Wechat link, and then specify to open Wechat and open with Wechat browser in Wechat....
now there are generally only two ways to add Wechat: scan the QR code and find Wechat s account But there are individual wap sites through an icon on the page, click on this icon link can directly jump to the designated Wechat s concern page, very con...
the article on Wechat s official account crawled through python at the backend found that the video in the article could not be played, and the video was nested in iframe, as shown in <iframe class="video_iframe" data-vidtype="2"...
when you get the list of followers through access_token after getting access_token, it shows that this operation cannot be performed. ...
in Wechat browser, it is required and only required to be compatible with iOS8+ and Android4.4+ existing icon is bound with click event fullScreen . After clicking this button, the video vdo of inline can be full screen: . const fullScreen = e =&g...
The component of navigator has a limit on the number of jumps. I now have a project tabbar to write by myself, so it is inevitable to add navigator jump to it, but if there are too many pages to jump, there will be a jump limit. ...
for example, if you are editing on another page, you may just change the css style, be refreshed and jump to the front page, and then have to reopen the edit page. It is troublesome to get used to using Wechat developer tools on ctrl+s,. Is my configurat...
dock with Wechat s voucher interface and issue vouchers to specific users. After the API is successfully called, the user cannot find the location of the voucher, only when he is prompted to use the voucher at the time of payment. ...
I just got in touch with Mini Program developer and recently encountered this problem when I wrote the demo, of a music player. After I returned to the list page from the playback page (or to the home page), I entered the playback page from the entrance...
WeChat Mini Programs s picture is saved to the photo album, api wx.saveImageToPhotosAlbum, which runs normally on the simulator and can be saved, but the error { "errMsg ": "saveImageToPhotosAlbum:fail file not exists "} is displayed in the real machi...
recently, a project on Wechat s official account encountered a problem, which requires an external link (for example, Baidu http: www.baidu.com;). ) display in their own html, convenient for statistical access users, and the final access link can onl...
after Wechat s official account modifies the code, ios refreshes twice to display the modified style, but Android still shows the original style. what s going on? ...
I need to call Wechat sharing function in product details, but it is correct when I take only one parameter, but it fails when I have more than one parameter. ...
Wechat pay in Alipay, complete the payment by opening the system browser. The project is built on vue. Instead of the current page being opened via safari, you are going to the root directory of the route. Not even history with mode. Dear gods, how to so...
I used Wechat developer tool to debug the official account of the web page, but suddenly the page did not display, there was nothing in div-sharpapp, there were all those routes, and other colleagues could run this project, but I couldn t. It was a blan...
error https: sf.gg?url=https: baidu.com %E6%90%9C%E7%B4%A2 " normal https: sf.gg?url=https: baidu.com search ...