CN105630507A - Method and device for drawing WebView control interface - Google Patents
Method and device for drawing WebView control interface Download PDFInfo
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- CN105630507A CN105630507A CN201511023109.8A CN201511023109A CN105630507A CN 105630507 A CN105630507 A CN 105630507A CN 201511023109 A CN201511023109 A CN 201511023109A CN 105630507 A CN105630507 A CN 105630507A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/30—Creation or generation of source code
- G06F8/38—Creation or generation of source code for implementing user interfaces
Abstract
The invention belongs to the technical field of information, and provides a method and device for drawing a WebView control interface. The method comprises the steps that the WebView control interface is made to be independent from a host interface of a main application; an independent work thread is created for drawing of the WebView control interface, and is independent from a UI main thread of the main application; the WebView control interface is drawn in the independent work thread. According to the method and device, drawing of the WebView control interface is carried out in the independent work thread, and an HTML5 video playing task can work in the independent work thread; on the one hand, the display efficiency of HTML5 video in a WebView control can be improved, and on the other hand, when the WebView control is embedded into the host interface of the main application to play the video, the user interface response speed can be increased, and the robustness of the main application can be improved.
Description
Technical field
The invention belongs to areas of information technology, particularly relate to method and device that a kind of WebView control interface is drawn.
Background technology
Along with the development of HTML5 standard and correlation technique, HTML5 video playback all supported by modern main browser. At Android Android intelligent platform, the support of HTML5 video be have also been made bigger optimization by chrome browser.
Under some business scenes, it is necessary to call HTML5 video playback capability in certain one page of Android application master routine App.
The standard method that current Android provides is embedded in WebView control at AndroidApp, is loaded by this WebView control and plays HTML5 video. This kind of mode has following defect: the first, WebView control does not support multi-process, video play up and compound display is all completed by the UI main thread of Android application master routine, UI main thread to be processed customer incident simultaneously and refresh UI interface, basis, thus when causing HTML5 video playback, android system response customer incident likely occurs that reaction is blunt, and namely usually said interface card is paused; Two, WebView is operated in the UI main thread of application master routine, when abnormal generation program crashing occurs in WebView control, also can indirectly cause UI main thread abnormal, and abnormal ForceClose phenomenon occurs App master routine.
Summary of the invention
Embodiments providing method and device that a kind of WebView control interface is drawn, it is intended to the method that the WebView control interface that solving prior art provides is drawn, interface there will be Caton phenomenon, and the problem of unusual phenomenon also can occur App application master routine.
On the one hand, it is provided that a kind of method that WebView control interface is drawn, described method comprises:
Make WebView control interface independent of the host interface of application master routine;
For the drafting at WebView control interface creates independent worker thread, described independent worker thread is independent of the UI main thread of application master routine;
Described independent worker thread completes the drafting at WebView control interface.
Further, WebView control interface is made to comprise independent of the host interface of application master routine described in:
The drawing layer at WebView control interface is placed under the drawing layer of host interface of application master routine;
The drawing layer of the host interface of application master routine arranges one piece of transparent region identical with the drawing layer size at WebView control interface.
Further, the described drafting for WebView control interface creates independent worker thread and comprises:
The UI main thread of application master routine creates the first independent worker thread;
The UI main thread of application master routine creates the 2nd independent worker thread;
The UI main thread of application master routine creates the 3rd independent worker thread.
Further, the described drafting completing WebView control interface in described independent worker thread comprises:
The auto-building html files render tree inputted according to user in the first independent worker thread;
2nd independent worker thread generates synthesis tree;
3rd independent worker thread performs play up and synthetic order, and synthesis result is outputted to the drawing layer of WebView control.
On the other hand, it is provided that the device that a kind of WebView control interface is drawn, described device comprises:
Interface independence module, for making WebView control interface independent of the host interface of application master routine;
Thread creation module, for creating independent worker thread for the drafting at WebView control interface, described independent worker thread is independent of the UI main thread of application master routine;
Interface drafting module, for completing the drafting at WebView control interface in described independent worker thread.
Further, described interface independence module comprises:
Drawing layer processing unit, for being placed under the drawing layer of the host interface of application master routine by the drawing layer at WebView control interface;
Host interface processing unit, for arranging one piece of transparent region identical with the drawing layer size at WebView control interface on the drawing layer of the host interface of application master routine.
Further, described thread creation module comprises:
First thread creation unit, for creating the first independent worker thread in the UI main thread of application master routine;
2nd thread creating unit, for creating the 2nd independent worker thread in the UI main thread of application master routine;
3rd thread creation unit, for creating the 3rd independent worker thread in the UI main thread of application master routine.
Further, described interface drafting module comprises:
Render tree generates unit, for the auto-building html files render tree inputted according to user in the first independent worker thread;
Synthesis tree generates unit, for generating synthesis tree in the 2nd independent worker thread;
Result output unit, plays up and synthetic order for performing in the 3rd independent worker thread, and synthesis result outputs to the drawing layer of WebView control.
In the embodiment of the present invention, make WebView control interface independent of after host interface, for the drafting at WebView control interface creates the independent worker thread independent of UI main thread, by completing the drafting at WebView control interface independent of the independent worker thread of UI main thread, achieve and the drafting at WebView control interface is placed in independent worker thread carries out, peel off with the UI main thread of application master routine, HTML5 video playback task can be allowed to be operated in independent worker thread, the display efficiency of HTML5 video in WebView control can be promoted on the one hand, the host interface that can improve application master routine on the other hand embeds user interface response speed when WebView control plays video and promotes the stalwartness of master routine.
Accompanying drawing explanation
Fig. 1 is the flowchart of the method that the WebView control interface that the embodiment of the present invention one provides is drawn;
Fig. 2 is in the method that the WebView control interface that the embodiment of the present invention one provides is drawn, and WebView control interface is independent of the schematic diagram of the host interface of application master routine;
Fig. 3 is the structure block diagram of the device that the WebView control interface that the embodiment of the present invention two provides is drawn.
Embodiment
In order to make the object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated. It is to be understood that specific embodiment described herein is only in order to explain the present invention, it is not intended to limit the present invention.
In embodiments of the present invention, make WebView control interface independent of the host interface of application master routine; For the drafting at WebView control interface creates independent worker thread, described independent worker thread is independent of the UI main thread of application master routine; Described independent worker thread completes the drafting at WebView control interface.
Below in conjunction with specific embodiment, the realization of the present invention is described in detail:
Embodiment one
The realization flow of the method that the WebView control interface that Fig. 1 shows the embodiment of the present invention one to be provided is drawn, describes in detail as follows:
In step S101, make WebView control interface independent of the host interface of application master routine.
In android system, WebView control is the same with controls such as TextView, Button, ImageView, they are all on the drawing layer of the host interface that the UI of oneself is plotted in application master routine, it means that their UI carries out drawing in the UI main thread of application master routine.
When some complex scenes of drafting, such as game picture, Camera preview screen, video playback, the UI relative complex of these scenes and requirement are drawn efficiently, it is not just too suitable that the UI main thread that their UI is placed on application master routine is drawn, it is necessary to these require complicated and efficiently UI generate an independent drawing layer and use an independent thread to draw these UI.
In android system, the interface of AndroidApp is drawn by SurfaceFlinger service, and in general each interface corresponding drawing layer Layer in SurfaceFlinger serves, is used for describing drawing interface. WebView control, for the treatment of Web (HTML/CSS/JavaScript) associated viscera, is embedded in the host interface of application master routine usually. Under existing framework, WebView control interface carries out color applying drawing by the UI main thread of application master routine together with the host interface of application master routine.
In embodiments of the present invention, after the work of host interface initialize completing ViewRoot initialize, ViewGroup initialize and application master routine, can by the SurfaceFlinger service of amendment android system, the drawing layer at WebView control interface is placed under the drawing layer of host interface of application master routine, make WebView control interface independent of the host interface of application master routine, no longer it is embedded in the host interface of application master routine. Drawing layer corresponding to the WebView control interface drawn is served as shown in Figure 2 by amendment SurfaceFlinger, Layer corresponding to WebView control interface independent of drawing layer corresponding to the host interface of application master routine, drawing layer corresponding to WebView control interface in the position of drafting system Z axle lower than the drawing layer that the host interface of application master routine is corresponding. In addition, arranging the identical transparent region of one piece of drawing layer size corresponding with WebView by SurfaceFlinger service on the drawing layer that the host interface of application master routine is corresponding, the display of the display at such WebView control interface and the host interface of application master routine can be independent.
In step s 102, for the drafting at WebView control interface creates independent worker thread, described independent worker thread is independent of the UI main thread of application master routine.
In embodiments of the present invention, the UI main thread of application master routine creates the first independent worker thread, the 2nd independent worker thread and the 3rd independent worker thread. These independent worker threads are separate with the UI main thread of application master routine, not by the control of the UI main thread applying master routine.
Wherein, the first independent worker thread is Renderer thread, and the 2nd independent worker thread is Compositing thread, and the 3rd independent worker thread is GPU thread.
Renderer thread, Compositing thread and GPU thread all with application master routine UI main thread be peel off, independent of application master routine UI main thread.
In step s 103, in described independent worker thread, complete the drafting at WebView control interface.
In embodiments of the present invention, the auto-building html files render tree inputted according to user in the first independent worker thread, 2nd independent worker thread generates synthesis tree, performs to play up and synthetic order in the 3rd independent worker thread, and synthesis result is outputted to the drawing layer of WebView control.
Concrete, can by the independent worker thread execution playing up and synthesizing the UI main thread independent of application master routine putting into establishment to WebView control interface, WebView control UI has been coordinated to draw by Renderer thread, Compositing thread and GPU thread, containing the process to HTML5 video playback.
Wherein, the auto-building html files render tree inputted according to user in Renderer thread, builds drawing context according to page level; Compositing thread generates synthesis tree, describes the drawing element on drawing page hierarchical relationship and every layer of page with tree structure; GPU thread performs play up and synthetic order, each drawing element in layer is drawn separately and carries out Images uniting, and synthesis result is outputted to the drawing layer of WebView control.
The present embodiment, make WebView control interface independent of after host interface, for the drafting at WebView control interface creates the independent worker thread independent of UI main thread, by completing the drafting at WebView control interface independent of the independent worker thread of UI main thread, achieve and the drafting at WebView control interface is placed in independent worker thread carries out, peel off with the UI main thread of application master routine, HTML5 video playback task can be allowed to be operated in independent worker thread, the display efficiency of HTML5 video in WebView control can be promoted on the one hand, the host interface that can improve application master routine on the other hand embeds user interface response speed when WebView control plays video and promotes the stalwartness of master routine. solve the defect of WebView single process, the drafting at WebView control interface is no longer completed in the UI main thread of application master routine, and coordinated at independent worker thread, thus solve HTML5 video playing efficiency in WebView control not high and application master routine response card problem.
It will be understood that in embodiments of the present invention, the size of the sequence number of above-mentioned each process does not also mean that the priority of execution order, and the execution order of each process should be determined with its function and inherent logic, and the implementation process of the embodiment of the present invention should not formed any restriction.
One of ordinary skill in the art will appreciate that all or part of step realizing in the various embodiments described above method can be completed by the hardware that program carrys out instruction relevant, corresponding program can be stored in a computer read/write memory medium, described storage media, such as ROM/RAM, disk or CD etc.
Embodiment two
The concrete structure block diagram of the device that the WebView control interface that Fig. 3 shows the embodiment of the present invention two to be provided is drawn, for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention. The device 3 that this WebView control interface is drawn comprises: interface independence module 31, thread creation module 32 and interface drafting module 33.
Wherein, interface independence module 31, for making WebView control interface independent of the host interface of application master routine;
Thread creation module 32, for creating independent worker thread for the drafting at WebView control interface, described independent worker thread is independent of the UI main thread of application master routine;
Interface drafting module 33, for completing the drafting at WebView control interface in described independent worker thread.
Concrete, described interface independence module 31 comprises:
Drawing layer processing unit, for being placed under the drawing layer of the host interface of application master routine by the drawing layer at WebView control interface;
Host interface processing unit, for arranging one piece of transparent region identical with the drawing layer size at WebView control interface on the drawing layer of the host interface of application master routine.
Concrete, described thread creation module 32 comprises:
First thread creation unit, for creating the first independent worker thread in the UI main thread of application master routine;
2nd thread creating unit, for creating the 2nd independent worker thread in the UI main thread of application master routine;
3rd thread creation unit, for creating the 3rd independent worker thread in the UI main thread of application master routine.
Concrete, described interface drafting module 33 comprises:
Render tree generates unit, for the auto-building html files render tree inputted according to user in the first independent worker thread;
Synthesis tree generates unit, for generating synthesis tree in the 2nd independent worker thread;
Result output unit, plays up and synthetic order for performing in the 3rd independent worker thread, and synthesis result outputs to the drawing layer of WebView control.
The device that the WebView control interface that the embodiment of the present invention provides is drawn can be applied in the embodiment of the method one of aforementioned correspondence, and details, see the description of above-described embodiment one, do not repeat them here.
It is noted that in said apparatus embodiment, each included unit just carries out according to function logic dividing, but is not limited to above-mentioned division, as long as corresponding function can be realized; In addition, the concrete title of each functional unit also just for the ease of mutual differentiation, is not limited to protection scope of the present invention.
The foregoing is only the better embodiment of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. done within the spirit and principles in the present invention, all should be included within protection scope of the present invention.
Claims (8)
1. the method that a WebView control interface is drawn, it is characterised in that, described method comprises:
Make WebView control interface independent of the host interface of application master routine;
For the drafting at WebView control interface creates independent worker thread, described independent worker thread is independent of the UI main thread of application master routine;
Described independent worker thread completes the drafting at WebView control interface.
2. the method for claim 1, it is characterised in that, described in make WebView control interface independent of application master routine host interface comprise:
The drawing layer at WebView control interface is placed under the drawing layer of host interface of application master routine;
The drawing layer of the host interface of application master routine arranges one piece of transparent region identical with the drawing layer size at WebView control interface.
3. the method for claim 1, it is characterised in that, the described drafting for WebView control interface creates independent worker thread and comprises:
The UI main thread of application master routine creates the first independent worker thread;
The UI main thread of application master routine creates the 2nd independent worker thread;
The UI main thread of application master routine creates the 3rd independent worker thread.
4. method as claimed in claim 3, it is characterised in that, the described drafting completing WebView control interface in described independent worker thread comprises:
The auto-building html files render tree inputted according to user in the first independent worker thread;
2nd independent worker thread generates synthesis tree;
3rd independent worker thread performs play up and synthetic order, and synthesis result is outputted to the drawing layer of WebView control.
5. the device that a WebView control interface is drawn, it is characterised in that, described device comprises:
Interface independence module, for making WebView control interface independent of the host interface of application master routine;
Thread creation module, for creating independent worker thread for the drafting at WebView control interface, described independent worker thread is independent of the UI main thread of application master routine;
Interface drafting module, for completing the drafting at WebView control interface in described independent worker thread.
6. device as claimed in claim 5, it is characterised in that, described interface independence module comprises:
Drawing layer processing unit, for being placed under the drawing layer of the host interface of application master routine by the drawing layer at WebView control interface;
Host interface processing unit, for arranging one piece of transparent region identical with the drawing layer size at WebView control interface on the drawing layer of the host interface of application master routine.
7. device as claimed in claim 5, it is characterised in that, described thread creation module comprises:
First thread creation unit, for creating the first independent worker thread in the UI main thread of application master routine;
2nd thread creating unit, for creating the 2nd independent worker thread in the UI main thread of application master routine;
3rd thread creation unit, for creating the 3rd independent worker thread in the UI main thread of application master routine.
8. device as claimed in claim 7, it is characterised in that, described interface drafting module comprises:
Render tree generates unit, for the auto-building html files render tree inputted according to user in the first independent worker thread;
Synthesis tree generates unit, for generating synthesis tree in the 2nd independent worker thread;
Result output unit, plays up and synthetic order for performing in the 3rd independent worker thread, and synthesis result outputs to the drawing layer of WebView control.
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| CN107589962A (en) * | 2016-07-14 | 2018-01-16 | 广州市动景计算机科技有限公司 | A kind of method for displaying user interface and device |
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| CN110806905B (en) * | 2019-10-30 | 2022-09-30 | 网易（杭州）网络有限公司 | User page processing method and device, electronic equipment and storage medium |
| CN111432262A (en) * | 2020-02-24 | 2020-07-17 | 杭州海康威视数字技术股份有限公司 | Page video rendering method and device |
| CN111432265A (en) * | 2020-03-31 | 2020-07-17 | 腾讯科技（深圳）有限公司 | Method for processing video pictures, related device and storage medium |
| CN111432265B (en) * | 2020-03-31 | 2021-08-31 | 腾讯科技（深圳）有限公司 | Method for processing video pictures, related device and storage medium |
| CN113806014A (en) * | 2021-08-26 | 2021-12-17 | 浪潮卓数大数据产业发展有限公司 | Webview loading optimization method based on virtual multi-open |
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