| /* |
| * Copyright (C) 2008 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.settings; |
| |
| import android.content.Context; |
| import android.support.v7.preference.Preference; |
| import android.support.v7.preference.PreferenceViewHolder; |
| import android.util.AttributeSet; |
| import android.view.View; |
| |
| /** |
| * A category with a progress spinner |
| */ |
| public class ProgressCategory extends ProgressCategoryBase { |
| |
| private int mEmptyTextRes; |
| private boolean mProgress = false; |
| private Preference mNoDeviceFoundPreference; |
| private boolean mNoDeviceFoundAdded; |
| |
| public ProgressCategory(Context context) { |
| super(context); |
| setLayoutResource(R.layout.preference_progress_category); |
| } |
| |
| public ProgressCategory(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| setLayoutResource(R.layout.preference_progress_category); |
| } |
| |
| public ProgressCategory(Context context, AttributeSet attrs, |
| int defStyleAttr) { |
| super(context, attrs, defStyleAttr); |
| setLayoutResource(R.layout.preference_progress_category); |
| } |
| |
| public ProgressCategory(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { |
| super(context, attrs, defStyleAttr, defStyleRes); |
| setLayoutResource(R.layout.preference_progress_category); |
| } |
| |
| public void setEmptyTextRes(int emptyTextRes) { |
| mEmptyTextRes = emptyTextRes; |
| } |
| |
| @Override |
| public void onBindViewHolder(PreferenceViewHolder view) { |
| super.onBindViewHolder(view); |
| final View progressBar = view.findViewById(R.id.scanning_progress); |
| |
| boolean noDeviceFound = (getPreferenceCount() == 0 || |
| (getPreferenceCount() == 1 && getPreference(0) == mNoDeviceFoundPreference)); |
| progressBar.setVisibility(mProgress ? View.VISIBLE : View.GONE); |
| |
| if (mProgress || !noDeviceFound) { |
| if (mNoDeviceFoundAdded) { |
| removePreference(mNoDeviceFoundPreference); |
| mNoDeviceFoundAdded = false; |
| } |
| } else { |
| if (!mNoDeviceFoundAdded) { |
| if (mNoDeviceFoundPreference == null) { |
| mNoDeviceFoundPreference = new Preference(getContext()); |
| mNoDeviceFoundPreference.setLayoutResource(R.layout.preference_empty_list); |
| mNoDeviceFoundPreference.setTitle(mEmptyTextRes); |
| mNoDeviceFoundPreference.setSelectable(false); |
| } |
| addPreference(mNoDeviceFoundPreference); |
| mNoDeviceFoundAdded = true; |
| } |
| } |
| } |
| |
| @Override |
| public void setProgress(boolean progressOn) { |
| mProgress = progressOn; |
| notifyChanged(); |
| } |
| } |