4/24/2023 0 Comments Android clipboard manager example![]() A ClipData object contains one ClipDescription object and more than one ClipData.Item objects.ĬlipDescription object contains clip-related metadata information. It needs to be pointed out that it contains an array of MIME types corresponding to the clip data. After putting the clip in the clipboard, you can use this array when pasting the application, and the program can check the array to determine its processing capabilities for these MIME types.Ĭlipdata.Item object contains Text, URI and Intent data.Īlthough the URI can take any URI value, it usually contains a Content Provider URI. To add data to the clipboard, you can create a ClipData object, which contains data description information and the data itself. The clipboard only saves one ClipData object at a time. 2. ClipData, ClipData.Item and ClipDescription In the Android system, the system clipboard is represented by the global ClipboardManager (clipboard manager) class. This type of object does not need to be initialized directly, but a reference is obtained through the getSystemService(CLIPBOARD_SERVICE) method. The following mainly describes the classes used in the clipboard framework. This metadata will help us determine whether the application can use the data on the clipboard.įor example, if you want to process text, you can ignore cut objects that contain URI or Intent objects. If you let users paste text regardless of the data format on the clipboard, you can force the clipboard data to be converted into text form, and then paste the text. The cut object contains metadata of the MIME type or available types. If the user is allowed to paste data into the application, the data on the clipboard can be checked before pasting, without having to deal with all data types. When an application puts a cut object on the clipboard, the previous cut object will disappear. The system clipboard has only one cut object at a time. ![]() When pasting data, get the cut object from the clipboard, and then put the Intent object in the memory of the application. It supports shortcuts for copying applications. To copy this kind of data, it is necessary to create an Intent object, put it in a cut object, and put the cut object on the system clipboard. When copying, put a URI object in a cut object, and then put it on the clipboard. When pasting, take out the cut object, get the URI, parse it into a data resource, such as Content Provider, and copy the data from the resource to the application storage. It can represent any form of URI. This form is mainly used to copy complex data from a Content Provider. In this form, the string is placed directly in the cut object, and then placed in the clipboard. When pasting this character string, directly fetch this object from the clipboard and put the character string into application storage. The cut object has the following three forms. When using the Clipboard Framework, put the data in a clip object, and this object will automatically be placed in the system’s clipboard. Let’s first introduce the clipboard framework. ![]() Copying and pasting can be done inside the application or between two framework-enabled applications. Simple text data is saved in the clipboard, while complicated data is saved as a guide, which will be resolved by the paste program using the Content Provider. It can handle a wide range of data types, such as text strings, complex data structures, text and binary data streams, and even more complex application types. A custom input system editor (IME), dictionary, and spell checker are included in the text service.įor copying and pasting, Android offers a versatile clipboard-based system. Users may also create their own text service and distribute it to other users in the same way that other software are distributed. Android 7.0’s text service allows developers to add features like copy/paste and spell check to their apps.
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