Downloading method and device supporting breakpoint resume in smart device

Abstract

The invention discloses a downloading method and a downloading device which support breakpoint resuming in intelligent equipment. The method comprises the following steps: after starting a download program, if inquiring download record information of a file to be downloaded, acquiring a download progress chart according to the inquired information; according to a record in the download progress chart, starting a download thread to carry out breakpoint resuming; temporarily storing downloaded file data into a cache; and when the size of file data in the cache reaches a set number of bytes and after writing the data in the cache into a downloaded data storage unit, updating an offset of a current download position of the download thread in the download progress chart. The downloaded data storage unit is created to carry out timely storage on the downloaded data, the download progress chart is created to timely update a download progress, so that according to the download record information of the recorded file to be downloaded before, the downloaded data storage unit and the download progress chart can be acquired and resuming downloading is carried out from data stored at a breakpoint.

Description

technical field [0001] The invention relates to the field of program testing, in particular to a downloading method and device in an intelligent device that supports resumed transmission from breakpoints. Background technique [0002] With the continuous advancement of science and technology, intelligent, mobile and portable products are more and more widely used by people; Android (Android) operating system is an embedded operating system, because of its complete functions, flexibility, user interface Friendliness and other advantages are applied in many smart devices; correspondingly, the number of Android application programs developed based on the Android operating system is also increasing. [0003] People can install various applications they like in the Android system. Most users install applications through network search and installation, which requires ensuring the stability of the network and the stability of the downloaded modules. [0004] However, in practica...

AI Technical Summary

Problems solved by technology

[0004] However, in practical applications, due to some uncontrollable factors, such as abnormal network interruption or abnormal power failure of Android devices, etc., the download cannot be carried out normally and is interrupted halfway; when the user restarts the download, it is often found that the downloaded The data is not saved, and re-downloading needs to start from scratch

The occurrence of this kind of problem makes the user's love for Android system products decline, which also causes a waste of network traffic to the user.

[0005] Although in the prior art, in the Window (windows) operating system installed in the desktop computer or notebook computer, the downloading program that can support the function of resuming uploading at breakpoints; yet, these downloading programs that support the resumed uploading function at breakpoints are based on Window Developed by the operating system; the Window operating system has more system resources available and provides rich API (Application Program Interface, application program interface) interface functions, so it is easier to develop a download program that supports the function of resuming uploads; while Android As an embedded operating system, the operating system has limited system resources and limited API interface functions. Therefore, the download program developed based on the Windows operating system and supporting the resume function cannot be ported to the Android operating system. middle

[0006] In summary, the prior art lacks a download program based on the Android operating system that supports the resume function, and there is a need to provide a download function that supports the resume function based on the Android operating system.

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