EditText限制:只输入大写，自动小写转大写

EditText限制:只输入大写，自动小写转大写

import Android.text.method.ReplacementTransformationMethod;
public class AllCapTransformationMethod extends ReplacementTransformationMethod {

@Override
protected 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;
}

@Override
protected 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;
}

}

//限制只输入大写，自动小写转大写
editext.setTransformationMethod(new AllCapTransformationMethod ());

 设置这个方法， 如果有调用 addTextChangedListener， setTransformationMethod 必须放 addTextChangedListener之后，否则setTransformationMethod无效