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The Input Method Editor (IME) is a control that allows users to input text. Android provides an extensible Input Method framework that allows applications to provide users with additional input methods, such as soft keyboard or voice input. Once these input methods are installed, you can select the ime they want from the system settings, and this setting is valid
The Input Method Editor (IME) is a control that allows users to input text. Android provides an extensible Input Method framework that allows applications to provide users with additional input methods, such as soft keyboard or voice input. Once these input methods are installed, you can select the IME they want from the system settings, and this setting is valid
I seem to always have a liking for the controls, such as O (cost _ money) O. Recently I plan to write about the use of basic Android controls, hoping to explore some new things.
In this example, text is input from edittext and displayed synchronously in textview to implement real-time input and output. The key is to use onkeylistener to listen to the keyboard inp
(Editable s);
You can tell the meaning from the function name, and whenever the text of the keyboard editing box is changed, the three functions above will be executed, beforetextchanged can give the content before the change, OnTextChanged and aftertextchanged give the text after the new character is appended;
Therefore, the restriction on the character
The Input Method Editor (IME) is a control that allows users to input text. Android provides an extensible Input Method framework that allows applications to provide users with additional input methods, such as soft keyboard or voice input. Once these input methods are installed, you can select the IME they want from the system settings, and this setting is valid
1. On the Internet, we can see that the value in the text box is limited by the value in the text box. Only numbers, text, and numbers can be entered, but no numbers or texts are allowed, space keys on the soft keyboard are all restricted attributes at the same time. For example, A
The edittext control in the editing box of Android is often used in normal programming. Sometimes, some restrictions are added to the editing box. For example, you can only enter numbers and the maximum number of input texts, you cannot enter invalid characters. Some of these requirements can be directly written in the layout XML file using the android control attributes, such as
In the development, often encounter this situation, open an activity, the first text box automatically get focus, and will pop up the soft keyboard input box, which greatly affect the user experience, now look at the solution.Let's see why this is the case, the reason is very simple, the text box will be the focus of the default, after the focus will continue to
[Android Note] The EditText text box does not get the focus, androidedittext
This is often the case during development. After opening an activity,
The first text box automatically obtains the focus, and the keyboard input box is displayed.This affects the user experience.
Solution:
1. Do not let the
When entering a page, we do not want the edittext to get focus automatically eject the soft keyboard, occupy more than half of the screen.Method OneLet LinearLayout first get the focus, the code is as follows:Method Two (recommended)Set the control of the activity in the manifest, the implementation of screen always horizontal display or vertical display is also set here, a side-by-sideThe Android
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