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# harmonyos

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Multi-level layout, how to pass upper-level gesture events to lower-level controls

Multi-level layout, how to pass upper-level gesture events to lower-level controls

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3 min read
How to solve the error problem of setting the color gradient effect using linearGradient?

How to solve the error problem of setting the color gradient effect using linearGradient?

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2 min read
Bluetooth HFP Support for Third-Party Device Phone Calls

Bluetooth HFP Support for Third-Party Device Phone Calls

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2 min read
How to Resolve the Issue That fs APIs Cannot Read Media File Extended Information ?

How to Resolve the Issue That fs APIs Cannot Read Media File Extended Information ?

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2 min read
Optimize the issue of excessively long time taken for real-time loading of partial URLs in web components

Optimize the issue of excessively long time taken for real-time loading of partial URLs in web components

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5 min read
How to solve the problem that the Scroll component cannot set an element to always be fixed in the first place

How to solve the problem that the Scroll component cannot set an element to always be fixed in the first place

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5 min read
Web component content is too long, how to handle the inability to scroll and link the content at the bottom?

Web component content is too long, how to handle the inability to scroll and link the content at the bottom?

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3 min read
Difference between the HarmonyOS lifecycle methods onPageShow, onPageHide, onForeground, and onBackground

Difference between the HarmonyOS lifecycle methods onPageShow, onPageHide, onForeground, and onBackground

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2 min read
How to read data when an HTTP request returns a JSON file and dataL2 access is successful?

How to read data when an HTTP request returns a JSON file and dataL2 access is successful?

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2 min read
How to resolve the issue of landscape display when loading network images using the Image component?

How to resolve the issue of landscape display when loading network images using the Image component?

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4 min read
NAPI Multithreaded Crash Issue

NAPI Multithreaded Crash Issue

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2 min read
Why does @Observed stop working after assigning JSON data from a server

Why does @Observed stop working after assigning JSON data from a server

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3 min read
How to draw text&signature on top of an image?

How to draw text&signature on top of an image?

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4 min read
Performant ArkTS Programming: Best Practices for High-Efficiency Code

Performant ArkTS Programming: Best Practices for High-Efficiency Code

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3 min read
Understanding ArkTS ArcList: The Go-To Component for Watch UIs

Understanding ArkTS ArcList: The Go-To Component for Watch UIs

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6 min read
DevEco Studio 5.1.0: Build and Run Your First HarmonyOS Wearable App on Huawei Watch 5

DevEco Studio 5.1.0: Build and Run Your First HarmonyOS Wearable App on Huawei Watch 5

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4 min read
Using Transient Tasks in HarmonyOS: A DownloadCenter Sample

Using Transient Tasks in HarmonyOS: A DownloadCenter Sample

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5 min read
How to Establish a Classic Bluetooth Connection Using the Virtual MAC Address of a Connected BLE Bluetooth Device?

How to Establish a Classic Bluetooth Connection Using the Virtual MAC Address of a Connected BLE Bluetooth Device?

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5 min read
How to Resolve the Issue of Inconsistent Length of SM2 Encrypted Text in National Cryptography Standards

How to Resolve the Issue of Inconsistent Length of SM2 Encrypted Text in National Cryptography Standards

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4 min read
How to resolve crashes when reading the width of video files in the gallery

How to resolve crashes when reading the width of video files in the gallery

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2 min read
How to Solve the Issue of Page Not Refreshing When Using @State to Decorate Object Arrays and Data Changes

How to Solve the Issue of Page Not Refreshing When Using @State to Decorate Object Arrays and Data Changes

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6 min read
[Smart Watch] [API 6] How do I use JS to set the right swipe to exit on my wearable device?

[Smart Watch] [API 6] How do I use JS to set the right swipe to exit on my wearable device?

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2 min read
[Smart Watch] [API 6] The app icon for the service center is not in the form of small eyelashes.

[Smart Watch] [API 6] The app icon for the service center is not in the form of small eyelashes.

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2 min read
[Smart Watch] [API 6] When installing a watch app, it prompts with 'code:9568257 error: fail to verify pkcs7 file.'

[Smart Watch] [API 6] When installing a watch app, it prompts with 'code:9568257 error: fail to verify pkcs7 file.'

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1 min read
ArkTS Coding Style Guide: Writing Clean, Readable, and Efficient Code

ArkTS Coding Style Guide: Writing Clean, Readable, and Efficient Code

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3 min read
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