java 我们可以在edittext中有不可编辑的文本吗
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Can we have uneditable text in edittext
提问by Sam97305421562
I am using an EditText. Is it possible to have a part of text uneditable and the rest editable in the same EditText?
我正在使用一个EditText. 是否有可能让一部分文本不可编辑而其余文本可编辑EditText？
回答by Josef Pfleger
You could use
你可以用
editText.setFocusable(false);or
或者
editText.setEnabled(false);although disabling the EditTextdoes currently not ignore input from the on-screen keyboard (I think that's a bug).
虽然禁用EditText当前不会忽略来自屏幕键盘的输入（我认为这是一个错误）。
Depending on the application it might be better to use an InputFilterthat rejects all changes:
根据应用程序，最好使用InputFilter拒绝所有更改的 ：
editText.setFilters(new InputFilter[] {
new InputFilter() {
public CharSequence filter(CharSequence src, int start,
int end, Spanned dst, int dstart, int dend) {
return src.length() < 1 ? dst.subSequence(dstart, dend) : "";
}
}
});Also see thisquestion.
另请参阅此问题。
回答by Ulrich Scheller
You can implement a TextChangedListener where you make sure those parts of your text wont get deleted/overwritten.
您可以实现一个 TextChangedListener 来确保文本的那些部分不会被获取deleted/overwritten。
class TextChangedListener implements TextWatcher {
public void afterTextChanged(Editable s) {
makeSureNothingIsDeleted();
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
public void onTextChanged(CharSequence s, int start, int before, int count) {}
}
TextChangedListener tcl = new TextChangedListener();
my_editable.addTextChangedListener(tcl);
