screenshot

来源： https://stackoverflow.com/questions/58411845/how-to-block-a-screen-shot-in-an-ios-application

问题 The idea is that, user should be able to load a video from their local machine and tell the program to take a screenshot from the video every 5sec or 30sec. Is there any library to help me with this task? Any idea from how to proceed would be helpful. 回答1: install opencv-python (which is an unofficial pre-built OpenCV package for Python) by issuing the following command: pip install opencv-python # Importing all necessary libraries import cv2 import os import time # Read the video from

问题 I want to convert CameraX preview to bitmap from previewView. Something similar to textureView.bitmap I have tried it with a textureview and it works perferctly, i can take a screenshot of the cameraview but the camera is stretched. 回答1: PreviewView now supports screenshot by calling PreviewView.getBitmap(). See: https://developer.android.com/reference/androidx/camera/view/PreviewView#getBitmap() 回答2: I finally found the answer in this link First set preferred implementationmode to

问题 I want to convert CameraX preview to bitmap from previewView. Something similar to textureView.bitmap I have tried it with a textureview and it works perferctly, i can take a screenshot of the cameraview but the camera is stretched. 回答1: PreviewView now supports screenshot by calling PreviewView.getBitmap(). See: https://developer.android.com/reference/androidx/camera/view/PreviewView#getBitmap() 回答2: I finally found the answer in this link First set preferred implementationmode to

问题 I want to convert CameraX preview to bitmap from previewView. Something similar to textureView.bitmap I have tried it with a textureview and it works perferctly, i can take a screenshot of the cameraview but the camera is stretched. 回答1: PreviewView now supports screenshot by calling PreviewView.getBitmap(). See: https://developer.android.com/reference/androidx/camera/view/PreviewView#getBitmap() 回答2: I finally found the answer in this link First set preferred implementationmode to

问题 I want to convert CameraX preview to bitmap from previewView. Something similar to textureView.bitmap I have tried it with a textureview and it works perferctly, i can take a screenshot of the cameraview but the camera is stretched. 回答1: PreviewView now supports screenshot by calling PreviewView.getBitmap(). See: https://developer.android.com/reference/androidx/camera/view/PreviewView#getBitmap() 回答2: I finally found the answer in this link First set preferred implementationmode to

问题 I am working on screenshot automation. In particular, I am trying to achieve the following: Prompt the user for the links to different pages on the website X Prompt the user for the class name Y I should be able to visit a website X login page, provide login details (assume they are known), click on "submit" button, that should redirect me to the "home" page Then I look at the list of links, provided by the user, visit each page and take screenshots of all elements, that have class Y (or the

问题 After looking for a long time on how to take a Webview screenshot, I found this package - native_screenshot. The issue is, it works in debug mode, but not in production mode - even when using the example posted in pub.dev. I've added the required permission to the android manifest and still can't get it working. I've reported the issue to the dev, still waiting for an answer. I was wondering if anyone here can help. I need help to make this works. All help is appreciated. Thanks 回答1: You can

问题 After looking for a long time on how to take a Webview screenshot, I found this package - native_screenshot. The issue is, it works in debug mode, but not in production mode - even when using the example posted in pub.dev. I've added the required permission to the android manifest and still can't get it working. I've reported the issue to the dev, still waiting for an answer. I was wondering if anyone here can help. I need help to make this works. All help is appreciated. Thanks 回答1: You can

问题 I am trying to make the code execution wait for all images to load before puppeteer takes a screenshot. My DOM gets populated when initData() function is called, which is defined in the client side js file. Delay or timeout is an option but I am sure there must be a more efficient way of doing it. (async (dataObj) => { const url = dataObj.url; const payload = dataObj.payload; const browser = await puppeteer.launch({ headless: false,devtools:false}); const page = await browser.newPage(); await