android edittext example

EditText is a control that is often used in Android development and is used primarily to obtain input from users. 1.edittext Common Properties edittext inherit from TextView, so EditText also has some properties and methods in TextView. The common properties of

Edittext is one of our most commonly used controls. I have known how to use it for a long time, but how to use it well has encountered problems today. I would like to make a special conclusion to prevent such problems in the future. Explanation:Android: inputtype = "textmultiline" // multiple lines can be displayed. Android: gravity = "Left | top" // enter the time standard in the upper left corner.

When I create another program today, I find that when I use findViewById (R. id. edit) to retrieve EditText, I always report a null pointer error. I think it is impossible !!Finally, starting from findViewById (), we can find that the R. id. edit in this method is obtained from the main layout file xml of the current Activity or Dialog.For example, my program:In the ListActivity class:.......Public void onC

Android custom EditText input box with the clear button, androidedittext Summary: The Android custom EditText input box contains the Clear button. After the user enters the character, EditText will automatically display the delete button on the right side of the input box.

) {Edittext.setinputtype (Inputtype.type_null); Turn off the soft keyboardreturn false;}});(2) block Input Method popup when Eidttext (Focusable=false) is not in focusInputmethodmanager IMM =(Inputmethodmanager) Getsystemservice (Input_method_service);Imm.hidesoftinputfromwindow (Edittext.getwindowtoken (), 0);(3) Call the numeric keypad and set the input type and keyboard to EnglishEtnumber.setinputtype (Inputtype.type_class_number); Calling the numeric keypadRledittext.setinputtype (inputtype.

text, we use Gray to differentiate it. When users enter their own content, this prompt will disappear and the font turns black, for example: At last, we set the length limit for EditText. This can be used to set the maxLength attribute to a value in XML. However, ambiguity may occur when users cannot enter more characters, therefore, you must inform the user of the reason why the input cannot be continued

the input method options. It will be further discussed in edittext. Android: scrollhorizontally: Specifies whether to display strip if the text exceeds the textview width. Android: selectallonfocus: if the text is selectable, let him get the focus instead of moving the cursor to the start or end of the text. After being set in textview, there is no effect.

the input method options. It will be further discussed in EditText. Android: scrollHorizontally: Specifies whether to display strip if the text exceeds the TextView width. Android: selectAllOnFocus: if the text is selectable, let him get the focus instead of moving the cursor to the start or end of the text. After being set in TextView, there is no effect.

displayed as a small dot ".". Android: Set phoneNumber to the phone number input method. Android: privateImeOptions: it is useless to set the input method options. It will be further discussed in EditText. Android: scrollHorizontally: Specifies whether to display strip if the text exceeds the TextView width.

of the text area. Android: width: Set the width of the text area. The measurement unit is px (pixel)/dp/sp/in/mm (mm). The difference between the measurement unit and layout_width is shown here. Android: maxWidth: sets the maximum width of the text area. Android: minWidth: sets the minimum width of the text area. 3. Android