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https://blog.csdn.net/t80t90s/article/details/25048917
import android.text.method.ReplacementTransformationMethod;
/**
* @author Ivan
*
*/
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;
}
}
///
editext.setTransformationMethod(new AllCapTransformationMethod ());