| /* |
| * 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.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 ""; |
| } |
| } |
| }; |
| |
| public TextViewInputDisabler(TextView textView) { |
| mTextView = textView; |
| mDefaultFilters = mTextView.getFilters(); |
| } |
| |
| public void setInputEnabled(boolean enabled) { |
| mTextView.setFilters(enabled ? mDefaultFilters : mNoInputFilters); |
| } |
| } |