CN102999270B - list display method and device - Google Patents

Abstract

The present invention is applicable to the technical field of media playing, and provides a list display method and device. The method includes the following steps: when the cursor of the media player leaves the list, judge whether the total number of items in the list is greater than or equal to N , wherein, N is the maximum number of items displayed in the list at one time, and the N is a natural number greater than or equal to 1; when the total number of items in the list is greater than N, and the preset list item is not in the currently displayed list item , scroll up or down the list items in the list until the preset list items are displayed. The list display method and device of the media player provided by the present invention enriches the list display mode of the media player in certain usage scenarios, enhances the operability of the list, and brings more and better user experiences to users.

Description

List display method and device

technical field

The invention belongs to the technical field of media playing, and in particular relates to a list display method and device for a media player.

Background technique

In media players such as DVDs, Blu-ray players, and MP3s, the list has a unique advantage as a way to display data to users. It can obtain data from a data source that stores massive amounts of data, and each time it can only Display the portion of the data that the user wants to see. The list in the media player usually needs to be operated with the help of a remote control device (such as a remote control). When the number of list items is very large (such as dozens or even hundreds or more), in extreme operating scenarios, the remote control It is very cumbersome and difficult to locate and display certain items of the list.

Contents of the invention

The purpose of the embodiments of the present invention is to provide a method and device for displaying a list, aiming at solving the problem of difficulty in locating a specific list item in an existing media player.

The embodiment of the present invention is achieved in this way, a list display method is used for a media player, and the method includes the following steps:

After the cursor of the media player leaves the list, determine whether the total number of items in the list is greater than or equal to N, where N is the maximum number of items displayed in the list at one time, and the N is a natural number greater than or equal to 1 ;

When the total number of items in the list is greater than N and the preset list item is not in the currently displayed list items, scroll up or down the list items in the list until the preset list item is displayed.

Further, the scrolling down the list until the preset list items are displayed includes:

When the number of the preset list item is smaller than the number of the list header before scrolling, all currently displayed list items are shifted down until the preset list item appears.

Further, the scrolling up the list until the preset list items are displayed includes:

When the number of the preset list item is greater than the number of the end of the list before scrolling, all currently displayed list items are shifted up until the preset list item appears.

Further, the preset list item is the list item entered by the user last time or the list item opened within a specified time.

Further, the media player is a Blu-ray player, MP3 player or DVD.

The present invention also proposes a list display device for a media player, the device comprising:

A judging module, configured to judge whether the total number of items in the list is greater than or equal to N after the cursor of the media player leaves the list, where N is the maximum number of items displayed at one time in the list, and N is greater than or equal to N. or a natural number equal to 1;

A scrolling module, configured to scroll up or down the list items in the list until the preset list items are displayed when the total number of items in the list is greater than N and the preset list items are not in the currently displayed list items. list item.

Further, the rolling module includes:

The scroll down unit is configured to move all currently displayed list items downward until the preset list item appears when the number of the preset list item is smaller than the number of the list header before scrolling.

Further, the rolling module also includes:

An upward scrolling unit, configured to move all currently displayed list items upward until the preset list item appears when the number of the preset list item is greater than the number of the end of the list before scrolling.

Further, the preset list item is the list item entered by the user last time or the list item opened within a specified time.

Further, the media player is a Blu-ray player, MP3 player or DVD.

In the embodiment of the present invention, when the cursor leaves the list, the visible area of the list immediately displays a certain preset list item in the list (this list item is usually a list item that the user cares about, such as the currently browsed USB device included in the device list Name), no matter where it was in the list before, so as to achieve the effect of fast positioning and display, the embodiment of the present invention further enriches the list display mode of the media player in certain usage scenarios, and enhances the operability of the list. Bring more and better user experience to users.

Description of drawings

FIG. 1 is a flowchart of a list display method provided by an embodiment of the present invention;

Fig. 2 is a structural diagram of a list display device provided by an embodiment of the present invention;

Fig. 3 is a structural diagram of a scrolling module in a list display device provided by an embodiment of the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

In the embodiment of the present invention, the media player can be an audio player such as MP3, or a multimedia player such as a DVD or Blu-ray player, or it can be a printer, a television, etc. that read data through a list and have a media playback function. device of.

Fig. 1 shows the flowchart of the list display method applicable to the embodiment of the present invention, including steps:

Step S101 , using a remote control device such as a remote controller or other control devices capable of positioning the cursor to position the cursor on any currently displayed list item. Assume that in the embodiment of the present invention, at any time, the total number of list items that can be displayed in the list of the media player at one time is N, and the list items of the media player have a total of M, and M and N are natural numbers greater than or equal to 1, The list items displayed at one time are a ₁ , a ₂ , a ₃ ... a _N , a ₁ is located at the head of the currently displayed list item, and a _N is located at the end of the currently displayed list item.

In the embodiment of the present invention, the list item that the user needs to display is called a preset list item, and the preset list item can be the default setting item of the media player, or a user-defined setting item, such as setting the preset list item It is a USB flash drive opened by the user last time, or a data source opened by the user within a specified time. The list item is usually a certain list item that the user cares about, such as the name of the currently browsed USB device included in the device list.

Step S102 , the user controls the cursor so that the cursor leaves the currently displayed list item, and determines whether M is less than or equal to N.

Step S103, if M is less than or equal to N, in this case, the list items in the media player are all visible (including the preset list items), so do not do any operation, and end the process; if M is greater than N, then Go to step S104.

Step S104. Determine whether the preset list item is located in the currently displayed list item. If the preset list item is already in any one of a ₁ , a ₂ , a ₃ ... a _N , do nothing and end process. If the preset list item is in other invisible positions of the list, go to step S105.

Step S105, scrolling up or down the list until a preset list item appears. In this step, it may be randomly set to scroll up or down all list items until a preset list item appears. A preferred implementation is to scroll according to the position of the preset list item in the list, so that the preset list item appears faster, as follows:

(1) If the preset list item is a list item before a ₁ , first calculate the offset distance D1 of the position of the preset list item relative to a ₁ , and the specific calculation formula is:

Offset distance D1 = (the number of a ₁ - the number of the preset list item) * height of the list item;

All list items are displaced downward by the above-mentioned offset distance D1 along the Y-axis positive direction of the media player display screen. All list items can be displaced by one list item height at a time, or can be displaced by the offset distance D1 at one time, so that the preset list The item is at the head of the list. The speed of the above-mentioned displacement can also be set in advance.

All list items before scrolling can also be displaced downwards by a distance greater than D1 at one time, so that the preset list items are located between the head of the list and the end of the list. At this time, the distance of displacement of all list items before scrolling should be greater than D1 And less than D2, D2 is the offset distance D2 of the preset list item relative to a _N , where,

Offset distance D2=(number of a _N —number of preset list item)*height of list item.

(2) If the preset list item is a list item after a _N , first calculate the offset distance D3 of the preset list item relative to a _N , and the specific calculation formula is:

Offset distance D3=(the number of the preset list item—the number of a _N )*height of the list item;

All list items are displaced upward by the above offset distance D3 along the negative direction of the Y axis of the media player display screen. All list items can be displaced by one list item height at a time, or the offset distance D3 can be displaced at one time, so that the preset list items At the position of a _N. Likewise, the speed of displacement can also be preset.

All list items before scrolling can also be displaced upwards by a distance greater than D3 at one time, so that the preset list items are located between the head of the list and the end of the list. At this time, the upward displacement of all list items before scrolling should be greater than D3 and Less than D4, D4 is the offset distance D4 of the preset list item relative to a1, where,

Offset distance D4 = (the number of a ₁ - the number of the preset list item) * the height of the list item.

In the above two preferred implementation manners, it is assumed that each list item in the list is of the same height, that is, the height of one list item.

Those of ordinary skill in the art can understand that all or part of the steps in the method of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage Media such as ROM/RAM, magnetic disk, optical disk, etc.

In the embodiment of the present invention, when the cursor leaves the list, the visible area of the list immediately displays a certain preset list item in the list, no matter where the preset list item is in the list before, so as to achieve fast The effect of positioning display. The embodiment of the present invention further enriches the list display mode of the media player in certain usage scenarios, enhances the operability of the list, and brings better experience to users.

FIG. 2 shows a structural diagram of a list display device applicable to an embodiment of the present invention, including:

Judging module 10, used for judging whether the total number of items in the list is greater than or equal to N after the cursor of the media player leaves the list, where N is the maximum number of items displayed at one time in the list, and N is greater than or equal to a natural number equal to 1;

A scrolling module 20, configured to scroll up or down the list items in the list until the preset list item is displayed when the total number of items in the list is greater than N and the preset list item is not in the currently displayed list item list items.

As shown in Figure 3, the rolling module 20 may include:

Scroll down unit 21, for when the number of the preset list item is smaller than the number of the list header before scrolling, all currently displayed list items are displaced downward until the preset list item appears;

The upward scrolling unit 22 is configured to move all currently displayed list items upward until the preset list item appears when the number of the preset list item is greater than the number of the end of the list before scrolling.

The working principle of the device in the embodiment of the present invention will be described in detail below.

The device may be the media player itself, or a device built into or connected to the media player. The media player positions the cursor on any currently displayed list item through a remote control device such as a remote controller or other control devices capable of positioning the cursor. Assume that in the embodiment of the present invention, at any time, the total number of list items that can be displayed in the list of the media player at one time is N, and the list items of the media player have a total of M, and M and N are natural numbers greater than or equal to 1, The list items displayed at one time are a ₁ , a ₂ , a ₃ ... a _N , a ₁ is located at the head of the currently displayed list item, and a _N is located at the end of the currently displayed list item.

In the embodiment of the present invention, the list item that the user needs to display is called a preset list item, and the preset list item can be the default setting item of the media player, or a user-defined setting item, such as setting the preset list item It is a USB flash drive opened by the user last time, or a data source opened by the user within a specified time. The list item is usually a certain list item that the user cares about, such as the name of the currently browsed USB device included in the device list.

The user controls the cursor so that the cursor leaves the currently displayed list item. The action trigger judging module 10 judges whether M is greater than or equal to N.

If M is less than or equal to N, in this case, all list items in the media player are visible (including preset list items), so the scrolling module 20 does not perform any operation.

If M is greater than N, and the preset list item is already in any one of a ₁ , a ₂ , a ₃ . . . a _N , the scrolling module 20 does not perform any operation. If the preset list item is in other invisible positions of the list, the scrolling module 20 scrolls the list up or down until the preset list item appears.

The scrolling module 20 may randomly scroll up or down all list items until a preset list item appears. A preferred embodiment is that the scrolling module 20 scrolls according to the position of the preset list item in the list, so that the preset list item appears faster, as follows:

If the preset list item is _a list item before a1, the scroll down unit 21 _first calculates the offset distance D1 of the position of the preset list item relative to a1, and the specific calculation formula is:

Offset distance D1=(the number of a ₁ —the number of the preset list item)*height of the list item;

All list items are displaced downward by the above-mentioned offset distance D1 along the Y-axis positive direction of the media player display screen. All list items can be displaced by one list item height at a time, or can be displaced by the offset distance D1 at one time, so that the preset list The item is at the head of the list. The speed of the above-mentioned displacement can also be set in advance.

Scrolling down unit 21 can also make all the list items before scrolling move downwards at a time greater than the distance of D1, so that the preset list items are located between the head of the list and the tail of the list, at this time, all the list items before scrolling down The displacement distance should be greater than D1 and less than D2, D2 is the offset distance D2 of the preset list item relative to a _N , where,

Offset distance D2 = (number of a _N - number of the preset list item) * height of the list item.

If the preset list item is a certain list item after a _N , the scroll-up unit 22 first calculates the offset distance D3 of the preset list item relative to a _N , and the specific calculation formula is:

Offset distance D3 = (the number of the preset list item - the number of a _N ) * the height of the list item;

All list items are displaced upward by the above offset distance D3 along the negative direction of the Y axis of the media player display screen. All list items can be displaced by one list item height at a time, or the offset distance D3 can be displaced at one time, so that the preset list items At the position of a _N. Likewise, the speed of displacement can also be preset.

The upward scrolling unit 22 can also make all the list items before scrolling move up a distance greater than D3, so that the preset list items are located between the head of the list and the end of the list, at this time, all the list items before scrolling are displaced upwards. The distance should be greater than D3 and less than D4, D4 is the offset distance D4 of the preset list item relative to a ₁ , where,

Offset distance D4 = (the number of a ₁ - the number of the preset list item) * the height of the list item.

In the above two preferred implementation manners, it is assumed that each list item in the list is of the same height, that is, the height of one list item.

In the embodiment of the present invention, when the cursor leaves the list, the visible area of the list immediately displays a certain preset list item in the list, no matter where the preset list item is in the list before, so as to achieve fast The effect of positioning display. The embodiment of the present invention further enriches the list display mode of the media player in certain usage scenarios, enhances the operability of the list, and brings better experience to users.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (8)

1. a list display method, for media player, is characterized in that, described method comprises the steps:

After the cursor of media player leaves described list, judge whether the total item of described list is more than or equal to N, wherein, N is the maxitem that described list once shows, described N be more than or equal to 1 natural number;

When the total item of described list is greater than N, and preset list items not in the list items of current display time, the list items in described list roll up or down until show described default list items, and described default list items is the list items that user enters for the last time or the list items opened in the fixed time.

2. the method for claim 1, is characterized in that, described downward the scroll list is until the list items that display is preset comprises:

When the numbering of the list head before the numbering of described default list items is less than rolling, all list items of current display are to bottom offset until there is described default list items.

3. method as claimed in claim 1 or 2, is characterized in that, described in scroll up list until the list items that display is preset comprises:

When the numbering of the list tail before the numbering of described default list items is greater than rolling, all list items of current display are to top offset until there is described default list items.

4. method as claimed in claim 1 or 2, it is characterized in that, described media player is Blu-ray player, MP3 player or DVD.

5. a list display device, for media player, is characterized in that, described device comprises:

Judge module, for after the cursor of media player leaves described list, judge whether the total item of described list is more than or equal to N, wherein, N is the maxitem that described list once shows, described N be more than or equal to 1 natural number;

Rolling module, N is greater than for the total item when described list, and preset list items not in the list items of current display time, the list items in described list roll up or down until show described default list items, and described default list items is the list items that user enters for the last time or the list items opened in the fixed time.

6. device as claimed in claim 5, it is characterized in that, described rolling module comprises:

Downward rolling unit, for when the numbering of described default list items is less than the numbering of the list head before rolling, all list items of current display are to bottom offset until there is described default list items.

7. the device as described in claim 5 or 6, is characterized in that, described rolling module also comprises:

Scroll up unit, and for when the numbering of described default list items is greater than the numbering of the list tail before rolling, all list items of current display are to top offset until there is described default list items.

8. the device as described in claim 5 or 6, is characterized in that, described media player is Blu-ray player, MP3 player or DVD.