android EditText默认数字键盘，能输入字母，数字和中文

最近遇到这样的市场需求，EditText默认弹出来是数字键盘，可以相互切换输入字母，数字和中文。还有就是一打开页面就弹出数字软键盘。刚开始对这个还是挺反感，因为这要求太细了。后面还是测试研究一番。

1、最佳方案

Java 实现

		edtProjectName = (EditText) findViewById(R.id.edtProjectName);edtProjectName.setRawInputType(Configuration.KEYBOARD_QWERTY);

2、setRawInputType源码

    /*** Directly change the content type integer of the text view, without* modifying any other state.* @see #setInputType(int)* @see android.text.InputType* @attr ref android.R.styleable#TextView_inputType*/public void setRawInputType(int type) {if (type == InputType.TYPE_NULL && mEditor == null) return; //TYPE_NULL is the default valuecreateEditorIfNeeded();mEditor.mInputType = type;}

3、setInputType源码

    /*** Set the type of the content with a constant as defined for {@link EditorInfo#inputType}. This* will take care of changing the key listener, by calling {@link #setKeyListener(KeyListener)},* to match the given content type.  If the given content type is {@link EditorInfo#TYPE_NULL}* then a soft keyboard will not be displayed for this text view.** Note that the maximum number of displayed lines (see {@link #setMaxLines(int)}) will be* modified if you change the {@link EditorInfo#TYPE_TEXT_FLAG_MULTI_LINE} flag of the input* type.** @see #getInputType()* @see #setRawInputType(int)* @see android.text.InputType* @attr ref android.R.styleable#TextView_inputType*/public void setInputType(int type) {final boolean wasPassword = isPasswordInputType(getInputType());final boolean wasVisiblePassword = isVisiblePasswordInputType(getInputType());setInputType(type, false);final boolean isPassword = isPasswordInputType(type);final boolean isVisiblePassword = isVisiblePasswordInputType(type);boolean forceUpdate = false;if (isPassword) {setTransformationMethod(PasswordTransformationMethod.getInstance());setTypefaceFromAttrs(null /* fontFamily */, MONOSPACE, 0);} else if (isVisiblePassword) {if (mTransformation == PasswordTransformationMethod.getInstance()) {forceUpdate = true;}setTypefaceFromAttrs(null /* fontFamily */, MONOSPACE, 0);} else if (wasPassword || wasVisiblePassword) {// not in password mode, clean up typeface and transformationsetTypefaceFromAttrs(null /* fontFamily */, -1, -1);if (mTransformation == PasswordTransformationMethod.getInstance()) {forceUpdate = true;}}boolean singleLine = !isMultilineInputType(type);// We need to update the single line mode if it has changed or we// were previously in password mode.if (mSingleLine != singleLine || forceUpdate) {// Change single line mode, but only change the transformation if// we are not in password mode.applySingleLine(singleLine, !isPassword, true);}if (!isSuggestionsEnabled()) {mText = removeSuggestionSpans(mText);}InputMethodManager imm = InputMethodManager.peekInstance();if (imm != null) imm.restartInput(this);}

当然，在xml里面也可以设置这个属性。

这个方法就是设置输入类型的限制了。

通过源码就可以知道setRawInputType和setInputType区别。

4、digits 限制

edittext 的xml属性里面可以设置android:digits属性，就是限制输入的字符。

例如只输入数字可以android:digits="1234567890" 或者带有字母android:digits="1234567890abcdef" 

那么在Java中实现，可以这种形式

        edtProjectName = (EditText) findViewById(R.id.edtProjectName);String dig = "0123456789qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM";edtProjectName.setKeyListener(DigitsKeyListener.getInstance(dig));

源码：

    /*** Sets the key listener to be used with this TextView.  This can be null* to disallow user input.  Note that this method has significant and* subtle interactions with soft keyboards and other input method:* see {@link KeyListener#getInputType() KeyListener.getContentType()}* for important details.  Calling this method will replace the current* content type of the text view with the content type returned by the* key listener.* 
* Be warned that if you want a TextView with a key listener or movement* method not to be focusable, or if you want a TextView without a* key listener or movement method to be focusable, you must call* {@link #setFocusable} again after calling this to get the focusability* back the way you want it.** @attr ref android.R.styleable#TextView_numeric* @attr ref android.R.styleable#TextView_digits* @attr ref android.R.styleable#TextView_phoneNumber* @attr ref android.R.styleable#TextView_inputMethod* @attr ref android.R.styleable#TextView_capitalize* @attr ref android.R.styleable#TextView_autoText*/public void setKeyListener(KeyListener input) {setKeyListenerOnly(input);fixFocusableAndClickableSettings();if (input != null) {createEditorIfNeeded();try {mEditor.mInputType = mEditor.mKeyListener.getInputType();} catch (IncompatibleClassChangeError e) {mEditor.mInputType = EditorInfo.TYPE_CLASS_TEXT;}// Change inputType, without affecting transformation.// No need to applySingleLine since mSingleLine is unchanged.setInputTypeSingleLine(mSingleLine);} else {if (mEditor != null) mEditor.mInputType = EditorInfo.TYPE_NULL;}InputMethodManager imm = InputMethodManager.peekInstance();if (imm != null) imm.restartInput(this);}

5、进入页面就弹出输入软键盘

本文来自互联网用户投稿，文章观点仅代表作者本人，不代表本站立场，不承担相关法律责任。如若转载，请注明出处。 如若内容造成侵权/违法违规/事实不符，请点击【内容举报】进行投诉反馈！