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 15 package com.android.settings.datausage; 16 17 import android.content.Context; 18 import android.support.v7.preference.Preference; 19 import android.support.v7.preference.PreferenceViewHolder; 20 import android.util.AttributeSet; 21 import android.view.View; 22 import android.widget.AdapterView; 23 import android.widget.Spinner; 24 import com.android.settings.R; 25 26 public 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 SpinnerPreference(Context context, AttributeSet attrs)33 public SpinnerPreference(Context context, AttributeSet attrs) { 34 super(context, attrs); 35 setLayoutResource(R.layout.data_usage_cycles); 36 } 37 38 @Override setAdapter(CycleAdapter cycleAdapter)39 public void setAdapter(CycleAdapter cycleAdapter) { 40 mAdapter = cycleAdapter; 41 notifyChanged(); 42 } 43 44 @Override setOnItemSelectedListener(AdapterView.OnItemSelectedListener listener)45 public void setOnItemSelectedListener(AdapterView.OnItemSelectedListener listener) { 46 mListener = listener; 47 } 48 49 @Override getSelectedItem()50 public Object getSelectedItem() { 51 return mCurrentObject; 52 } 53 54 @Override setSelection(int position)55 public void setSelection(int position) { 56 mPosition = position; 57 mCurrentObject = mAdapter.getItem(mPosition); 58 notifyChanged(); 59 } 60 61 @Override onBindViewHolder(PreferenceViewHolder holder)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 performClick(View view)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