53 lines
1.8 KiB
Java
53 lines
1.8 KiB
Java
/*
|
|
* Copyright (C) 2015 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package com.android.internal.widget;
|
|
|
|
import android.compat.annotation.UnsupportedAppUsage;
|
|
import android.text.InputFilter;
|
|
import android.text.Spanned;
|
|
import android.widget.TextView;
|
|
|
|
/**
|
|
* Helper class to disable input on a TextView. The input is disabled by swapping in an InputFilter
|
|
* that discards all changes. Use with care if you have customized InputFilter on the target
|
|
* TextView.
|
|
*/
|
|
public class TextViewInputDisabler {
|
|
private TextView mTextView;
|
|
private InputFilter[] mDefaultFilters;
|
|
private InputFilter[] mNoInputFilters = new InputFilter[] {
|
|
new InputFilter () {
|
|
@Override
|
|
public CharSequence filter(CharSequence source, int start, int end, Spanned dest,
|
|
int dstart, int dend) {
|
|
return "";
|
|
}
|
|
}
|
|
};
|
|
|
|
@UnsupportedAppUsage
|
|
public TextViewInputDisabler(TextView textView) {
|
|
mTextView = textView;
|
|
mDefaultFilters = mTextView.getFilters();
|
|
}
|
|
|
|
@UnsupportedAppUsage
|
|
public void setInputEnabled(boolean enabled) {
|
|
mTextView.setFilters(enabled ? mDefaultFilters : mNoInputFilters);
|
|
}
|
|
}
|