1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
5 * except in compliance with the License. You may obtain a copy of the License at
6 *
7 *      http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software distributed under the
10 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
11 * KIND, either express or implied. See the License for the specific language governing
12 * permissions and limitations under the License.
13 */
14
15package com.android.settings.datausage;
16
17import android.content.Context;
18import android.support.v7.preference.Preference;
19import android.support.v7.preference.PreferenceViewHolder;
20import android.util.AttributeSet;
21import android.view.View;
22import android.widget.AdapterView;
23import android.widget.Spinner;
24import com.android.settings.R;
25
26public class SpinnerPreference extends Preference implements CycleAdapter.SpinnerInterface {
27
28    private CycleAdapter mAdapter;
29    private AdapterView.OnItemSelectedListener mListener;
30    private Object mCurrentObject;
31    private int mPosition;
32
33    public SpinnerPreference(Context context, AttributeSet attrs) {
34        super(context, attrs);
35        setLayoutResource(R.layout.data_usage_cycles);
36    }
37
38    @Override
39    public void setAdapter(CycleAdapter cycleAdapter) {
40        mAdapter = cycleAdapter;
41        notifyChanged();
42    }
43
44    @Override
45    public void setOnItemSelectedListener(AdapterView.OnItemSelectedListener listener) {
46        mListener = listener;
47    }
48
49    @Override
50    public Object getSelectedItem() {
51        return mCurrentObject;
52    }
53
54    @Override
55    public void setSelection(int position) {
56        mPosition = position;
57        mCurrentObject = mAdapter.getItem(mPosition);
58        notifyChanged();
59    }
60
61    @Override
62    public void onBindViewHolder(PreferenceViewHolder holder) {
63        super.onBindViewHolder(holder);
64        Spinner spinner = (Spinner) holder.findViewById(R.id.cycles_spinner);
65        spinner.setAdapter(mAdapter);
66        spinner.setSelection(mPosition);
67        spinner.setOnItemSelectedListener(mOnSelectedListener);
68    }
69
70    @Override
71    protected void performClick(View view) {
72        view.findViewById(R.id.cycles_spinner).performClick();
73    }
74
75    private final AdapterView.OnItemSelectedListener mOnSelectedListener
76            = new AdapterView.OnItemSelectedListener() {
77        @Override
78        public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
79            if (mPosition == position) return;
80            mPosition = position;
81            mCurrentObject = mAdapter.getItem(position);
82            mListener.onItemSelected(parent, view, position, id);
83        }
84
85        @Override
86        public void onNothingSelected(AdapterView<?> parent) {
87            mListener.onNothingSelected(parent);
88        }
89    };
90}
91