android Editext限制输入数字和字母以及将小写自动转换成大写的方法

1. 限制只能输入数字和字母的方法，在Editext的属性中加入这一行代码即可

                android:digits="0123456789abcdefghigklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"

  public class AllCapTransformationMethod extends ReplacementTransformationMethod {@Overrideprotected char[] getOriginal() {char[] aa = { 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z' };return aa;}@Overrideprotected char[] getReplacement() {char[] cc = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z' };return cc;}}

editText.setTransformationMethod(new AllCapTransformationMethod ());

ok，这就设置成功了，大写转小写或者其他的方法大同小异。