public static TextWatcher setReadOnly(final EditText edt, final boolean readOnlyState, TextWatcher remove) {
edt.setCursorVisible(!readOnlyState);
TextWatcher tw = null;
final String text = edt.getText().toString();
if (readOnlyState) {
tw = new TextWatcher();
@Override
public void afterTextChanged(Editable s) {
}
@Override
//saving the text before change
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
// and replace it with content if it is about to change
public void onTextChanged(CharSequence s, int start,int before, int count) {
edt.removeTextChangedListener(this);
edt.setText(text);
edt.addTextChangedListener(this);
}
};
edt.addTextChangedListener(tw);
return tw;
} else {
edt.removeTextChangedListener(remove);
return remove;
}
}
class ReadOnlyTextWatcher implements TextWatcher {
private final EditText textEdit;
private String originalText;
private boolean mustUndo = true;
public ReadOnlyTextWatcher(EditText textEdit) {
this.textEdit = textEdit;
}
@Override
public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
if (mustUndo) {
originalText = charSequence.toString();
}
}
@Override
public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
}
@Override
public void afterTextChanged(Editable editable) {
if (mustUndo) {
mustUndo = false;
textEdit.setText(originalText);
} else {
mustUndo = true;
}
}
}