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/*
* Copyright (C) 2019 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.development.bluetooth;
import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
import com.android.settings.R;
import com.android.settingslib.CustomDialogPreferenceCompat;
import java.util.ArrayList;
import java.util.List;
/**
* Abstract class for Bluetooth A2DP config preference in developer option.
*/
public abstract class BaseBluetoothDialogPreference extends CustomDialogPreferenceCompat implements
RadioGroup.OnCheckedChangeListener{
private static final String TAG = "BaseBluetoothDlgPref";
protected List<Integer> mRadioButtonIds = new ArrayList<>();
protected List<String> mRadioButtonStrings = new ArrayList<>();
protected List<String> mSummaryStrings = new ArrayList<>();
private Callback mCallback;
public BaseBluetoothDialogPreference(Context context) {
super(context);
}
public BaseBluetoothDialogPreference(Context context, AttributeSet attrs) {
super(context, attrs);
}
public BaseBluetoothDialogPreference(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
public BaseBluetoothDialogPreference(Context context, AttributeSet attrs, int defStyleAttr,
int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
}
@Override
protected void onBindDialogView(View view) {
super.onBindDialogView(view);
if (mCallback == null) {
Log.e(TAG, "Unable to show dialog by the callback is null");
return;
}
if (mRadioButtonStrings.size() != mRadioButtonIds.size()) {
Log.e(TAG, "Unable to show dialog by the view and string size are not matched");
return;
}
final int currentIndex = mCallback.getCurrentConfigIndex();
if (currentIndex < 0 || currentIndex >= mRadioButtonIds.size()) {
Log.e(TAG, "Unable to show dialog by the incorrect index: " + currentIndex);
return;
}
// Initial radio button group
final RadioGroup radioGroup = view.findViewById(getRadioButtonGroupId());
if (radioGroup == null) {
Log.e(TAG, "Unable to show dialog by no radio button group: "
+ getRadioButtonGroupId());
return;
}
radioGroup.check(mRadioButtonIds.get(currentIndex));
radioGroup.setOnCheckedChangeListener(this);
// Initial radio button
final List<Integer> selectableIndex = mCallback.getSelectableIndex();
RadioButton radioButton;
for (int i = 0; i < mRadioButtonStrings.size(); i++) {
radioButton = view.findViewById(mRadioButtonIds.get(i));
if (radioButton == null) {
Log.e(TAG, "Unable to show dialog by no radio button:" + mRadioButtonIds.get(i));
return;
}
radioButton.setText(mRadioButtonStrings.get(i));
radioButton.setEnabled(selectableIndex.contains(i));
}
// Initial help information text view
final TextView helpTextView = view.findViewById(R.id.bluetooth_audio_codec_help_info);
if (selectableIndex.size() == mRadioButtonIds.size()) {
// View will be invisible when all options are enabled.
helpTextView.setVisibility(View.GONE);
} else {
helpTextView.setText(R.string.bluetooth_select_a2dp_codec_type_help_info);
helpTextView.setVisibility(View.VISIBLE);
}
}
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
if (mCallback == null) {
Log.e(TAG, "Callback is null");
return;
}
mCallback.onIndexUpdated(mRadioButtonIds.indexOf(checkedId));
getDialog().dismiss();
}
/**
* Method to set callback.
*/
public void setCallback(Callback callback) {
mCallback = callback;
}
/**
* Method to get summary strings by index.
*/
protected String generateSummary(int index) {
if (index > mSummaryStrings.size()) {
Log.e(TAG, "Unable to get summary of " + index + ". Size is " + mSummaryStrings.size());
return null;
}
return index == getDefaultIndex() ? mSummaryStrings.get(getDefaultIndex()) :
String.format(getContext().getResources().getString(
R.string.bluetooth_select_a2dp_codec_streaming_label),
mSummaryStrings.get(index));
}
/**
* Method to get default index.
*/
protected int getDefaultIndex() {
return 0;
}
/**
* Method to get radio button group id.
*/
protected abstract int getRadioButtonGroupId();
/**
* Callback interface for this class to manipulate data from controller.
*/
public interface Callback {
/**
* Method to get current Bluetooth A2DP config index.
*/
int getCurrentConfigIndex();
/**
* Method to get selectable config index which means supported by phone and device.
*
* @return the available {@link List} of the Bluetooth A2DP config.
*/
List<Integer> getSelectableIndex();
/**
* Method to notify controller when user changes config.
*
* @param index for the selected index.
*/
void onIndexUpdated(int index);
}
}
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