1 /* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.phone; 18 19 import android.content.Context; 20 import android.os.AsyncResult; 21 import android.os.Handler; 22 import android.os.Message; 23 import android.preference.CheckBoxPreference; 24 import android.util.AttributeSet; 25 import android.util.Log; 26 27 import com.android.internal.telephony.Phone; 28 import com.android.internal.telephony.PhoneFactory; 29 30 public class Use2GOnlyCheckBoxPreference extends CheckBoxPreference { 31 private static final String LOG_TAG = "Use2GOnlyCheckBoxPreference"; 32 private static final boolean DBG = true; 33 34 private Phone mPhone; 35 private MyHandler mHandler; 36 Use2GOnlyCheckBoxPreference(Context context)37 public Use2GOnlyCheckBoxPreference(Context context) { 38 this(context, null); 39 } 40 Use2GOnlyCheckBoxPreference(Context context, AttributeSet attrs)41 public Use2GOnlyCheckBoxPreference(Context context, AttributeSet attrs) { 42 this(context, attrs,com.android.internal.R.attr.checkBoxPreferenceStyle); 43 } 44 Use2GOnlyCheckBoxPreference(Context context, AttributeSet attrs, int defStyle)45 public Use2GOnlyCheckBoxPreference(Context context, AttributeSet attrs, int defStyle) { 46 super(context, attrs, defStyle); 47 mPhone = PhoneFactory.getDefaultPhone(); 48 mHandler = new MyHandler(); 49 mPhone.getPreferredNetworkType( 50 mHandler.obtainMessage(MyHandler.MESSAGE_GET_PREFERRED_NETWORK_TYPE)); 51 } 52 53 @Override onClick()54 protected void onClick() { 55 super.onClick(); 56 57 int networkType = isChecked() ? Phone.NT_MODE_GSM_ONLY : Phone.NT_MODE_WCDMA_PREF; 58 Log.i(LOG_TAG, "set preferred network type="+networkType); 59 mPhone.setPreferredNetworkType(networkType, mHandler 60 .obtainMessage(MyHandler.MESSAGE_SET_PREFERRED_NETWORK_TYPE)); 61 } 62 63 private class MyHandler extends Handler { 64 65 private static final int MESSAGE_GET_PREFERRED_NETWORK_TYPE = 0; 66 private static final int MESSAGE_SET_PREFERRED_NETWORK_TYPE = 1; 67 68 @Override handleMessage(Message msg)69 public void handleMessage(Message msg) { 70 switch (msg.what) { 71 case MESSAGE_GET_PREFERRED_NETWORK_TYPE: 72 handleGetPreferredNetworkTypeResponse(msg); 73 break; 74 75 case MESSAGE_SET_PREFERRED_NETWORK_TYPE: 76 handleSetPreferredNetworkTypeResponse(msg); 77 break; 78 } 79 } 80 handleGetPreferredNetworkTypeResponse(Message msg)81 private void handleGetPreferredNetworkTypeResponse(Message msg) { 82 AsyncResult ar = (AsyncResult) msg.obj; 83 84 if (ar.exception == null) { 85 int type = ((int[])ar.result)[0]; 86 Log.i(LOG_TAG, "get preferred network type="+type); 87 setChecked(type == Phone.NT_MODE_GSM_ONLY); 88 } else { 89 // Weird state, disable the setting 90 Log.i(LOG_TAG, "get preferred network type, exception="+ar.exception); 91 setEnabled(false); 92 } 93 } 94 handleSetPreferredNetworkTypeResponse(Message msg)95 private void handleSetPreferredNetworkTypeResponse(Message msg) { 96 AsyncResult ar = (AsyncResult) msg.obj; 97 98 if (ar.exception != null) { 99 // Yikes, error, disable the setting 100 setEnabled(false); 101 // Set UI to current state 102 Log.i(LOG_TAG, "set preferred network type, exception=" + ar.exception); 103 mPhone.getPreferredNetworkType(obtainMessage(MESSAGE_GET_PREFERRED_NETWORK_TYPE)); 104 } else { 105 Log.i(LOG_TAG, "set preferred network type done"); 106 } 107 } 108 } 109 } 110