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

This topic created in 2072 days ago, the information mentioned may be changed or developed.

接口需以大写字母入参，APP 中对 EditText 使用 ReplacementTransformationMethod 进行了强制大写转换，提交时使用 getText()获取内容，但项目上线后发现极少数请求的入参依然是小写字母

虽然后台有对应并不影响业务，也在 APP 中提交时加了 toUpperCase 处理，但没想明白 ReplacementTransformationMethod 是怎么被绕过的，在几十台测试机上试过各种骚操作也再现不出来

Supplement 1 · Sep 15, 2020

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));

Supplement 2 · Sep 16, 2020

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

edittext

大写

字母

gettext

12 replies • 2020-09-22 10:11:19 +08:00