How to implement the Android photo preview interface to display a rectangular frame?

I want to implement a custom camera. There is a rectangular frame in the middle of the camera preview interface, and the other parts are translucent. Then I want to get the picture in the rectangular frame. Can anyone give me some advice? Similar to the effect below.

高洛峰 2017-05-16 13:27:07 0  1  541

javascript - How to implement a web page or APP to call the mobile phone camera without saving photos to the album?

Take the WeChat service account as an example. After entering the web page, you call the phone's camera, then take a photo and upload it to the server. The process is actually very simple, but there is a problem. I hope that the photos taken will not be kept in the photo album of the mobile phone, b...

世界只因有你 2017-05-16 13:21:04 0  2  683

ios - After taking a screenshot, only the date picker appears with a gray-black shadow

I took a screenshot of the entire window, but the picture after the screenshot is different from the actual picture. The above is the screenshot code. The above is the screenshot effect. Why is there a black shadow?

三叔 2017-06-22 11:53:12 0  1  1246

javascript - In which folder on the computer is the local cache in developer tools placed?

This option is a local cache. I want to copy the pictures in it. I don’t know where the pictures are actually located on the computer?

淡淡烟草味 2017-06-26 10:57:46 0  1  868

html5 - Image viewing based on vue, how to implement it?

The effect is the same as viewing pictures in WeChat Moments. You can view long pictures, zoom in, and display the number of pictures.

怪我咯 2017-05-16 13:42:53 0  1  466

javascript - Click the left and right arrows, the picture will move accordingly, and the picture in the center will always be the largest

I want to create the effect of the picture below. There are currently 6 pictures. There are two questions. 1. How to start from the first or last picture without interruption after moving to the left or right. 2. The biggest effect of the picture in the middle position is How to make it, I hope expe...

曾经蜡笔没有小新 2017-05-19 10:29:25 0  5  776

objective-c - How to implement NetEase Cloud Music's ImagePicker for selecting avatars on IOS

After reading the introduction to ImagePicker, many of them use the method of users choosing to use a camera or a photo. But I saw that NetEase Cloud Music changed the avatar by adding a camera next to the picture gallery. The effect is as shown in the picture. I would like to ask if there is any wa...

巴扎黑 2017-05-31 10:31:51 0  1  767

javascript - Principles of face-changing technology in web photos

The function I want to achieve: take a frontal photo of myself with my mobile phone on the web mobile terminal, and then replace the face of the person in the template photo with my own face, and the size and tone of the face must be seamless with the face in the template photo Fusion. The problem I...

阿神 2017-06-20 10:07:05 0  1  2884

javascript - How to determine if two different objects trigger the same event?

As shown in the picture, how to implement it, please request a demo from the boss

巴扎黑 2017-06-26 10:52:15 0  2  719

How to implement mathematical formula keyboard display and input in Android

The above picture comes from Shensuanzi student version app. I would like to ask what are the ideas for such a keyboard and what open source libraries can implement it?

曾经蜡笔没有小新 2017-05-16 13:30:51 0  1  826

javascript - css precompilation

As shown in the picture, I would like to ask if it is less and the result of compilation.

高洛峰 2017-06-08 11:03:19 0  2  762

javascript - The effect of a lottery (as shown in the picture)?

An effect of randomly rotating each avatar picture. Does anyone have a similar demo or provide a method? Thank you for your help.

阿神 2017-06-05 11:10:32 0  2  700

css - How to solve the problem of float elements falling

I want to achieve this effect, but the current code is like this {code...} {code...} I want to ask how to solve it. I read a lot of replies about the width problem. After I change the width, the background image of the div is displayed. Not complete. Is there any way to scale the photo proportionall...

怪我咯 2017-05-16 13:36:42 0  7  1221

How can I create the effect of switching tabs (text content changes with it)

As shown in the picture, I want to create this kind of label switching effect. How should I do it? Please give me guidance!

yuippp 2019-09-10 11:35:49 0  2  1262

objective-c crop image - Stack Overflow

For example, I have a picture like the one above. I want to crop out the three red areas and turn them into three new pictures, and convert them into a new UIImage object or save them to the photo album. How to handle it will be easier? (The red frame is for demonstration purposes only, the actual p...

给我你的怀抱 2017-05-31 10:32:03 0  1  737

Is there any plug-in that supports vim to mask other non-search word areas in real time when searching?

Someone used to demonstrate the effect mentioned in the question on YouTube, but I can’t find it now. Just like the picture below, with as the keyword

迷茫 2017-05-16 16:38:36 0  3  718

How to get the first wire_open and wire_close group in the data

This is the data I want to output, it matches the blue line and the photo of the desired output I have attached, please take a look and use the SQL query to get the desired result

P粉317679342 2024-02-26 08:47:46 0  1  378

python - How does the django framework design an interface to allow third parties to access data, but cannot download it?

Recently, there is a need to cooperate with third-party apps, and we are planning to allow third-party apps to access our backend data, pictures and audio through interfaces. The pictures and audio are all on Alibaba oss, and the interface uses Djangorestfulframework. Is it possible to achieve that ...

phpcn_u1582 2017-06-12 09:24:45 0  1  676

As Teachers' Day approaches, do you have anything to say to teachers?

Whether you are a novice who has just started programming, a master who has already learned a lot, or an ordinary student in school... What do you want to say to your teachers? Can you express your ideas in code language? For example, use a piece of front-end code to achieve the effect of a school b...

藏色散人 2018-09-08 17:25:57 0  0  1203

Change image via onclick() function

I want to change one picture to another when clicking on the object. The code is stacked in the following order: What I want is that when I click, the image is replaced with a colored version of the image, i.e. another image. Now, I know I can do it using JQuery/JS. But I don't want to add a lot of ...

P粉242535777 2023-08-18 08:53:28 0  1  494