请问诸位 Android 开发大佬， EditText 的 ReplacementTransformationMethod 有什么办法绕过去

附代码

public static class AllCapTransformationMethod extends ReplacementTransformationMethod {
private char[] lower = {'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'};
private char[] upper = {'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'};
private boolean allUpper;

public AllCapTransformationMethod(boolean needUpper) {
this.allUpper = needUpper;
}

protected char[] getOriginal() {
if (allUpper) {
return lower;
} else {
return upper;
}
}

protected char[] getReplacement() {
if (allUpper) {
return upper;
} else {
return lower;
}
}
}

使用（项目中不含 needUpper 为 false 的调用）：
editText.setTransformationMethod(new AllCapTransformationMethod(true));

http://web.mit.edu/afs.new/sipb/project/android/docs/reference/android/widget/TextView.html#setTransformationMethod(android.text.method.TransformationMethod)

public final void setTransformationMethod (TransformationMethod method)
Added in API level 1
Sets the transformation that is applied to the text that this TextView is displaying.

setTransformationMethod 只影响显示内容