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      1 package com.android.settings;
      2 
      3 import android.app.Activity;
      4 import android.app.AlertDialog;
      5 import android.content.DialogInterface;
      6 import android.os.AsyncResult;
      7 import android.os.Bundle;
      8 import android.os.Handler;
      9 import android.os.Message;
     10 import android.util.Log;
     11 import android.view.View;
     12 import android.view.Window;
     13 import android.view.WindowManager;
     14 import android.widget.AdapterView;
     15 import android.widget.ArrayAdapter;
     16 import android.widget.ListView;
     17 
     18 import com.android.internal.telephony.Phone;
     19 import com.android.internal.telephony.PhoneFactory;
     20 
     21 
     22 /**
     23  * Radio Band Mode Selection Class
     24  *
     25  * It will query baseband about all available band modes and display them
     26  * in screen. It will display all six band modes if the query failed.
     27  *
     28  * After user select one band, it will send the selection to baseband.
     29  *
     30  * It will alter user the result of select operation and exit, no matter success
     31  * or not.
     32  *
     33  */
     34 public class BandMode extends Activity {
     35     private static final String LOG_TAG = "phone";
     36     private static final boolean DBG = false;
     37 
     38     private static final int EVENT_BAND_SCAN_COMPLETED = 100;
     39     private static final int EVENT_BAND_SELECTION_DONE = 200;
     40 
     41     //Directly maps to RIL_RadioBandMode from ril.h
     42     private static final String[] BAND_NAMES = new String[] {
     43             "Automatic",
     44             "Europe",
     45             "United States",
     46             "Japan",
     47             "Australia",
     48             "Australia 2",
     49             "Cellular 800",
     50             "PCS",
     51             "Class 3 (JTACS)",
     52             "Class 4 (Korea-PCS)",
     53             "Class 5",
     54             "Class 6 (IMT2000)",
     55             "Class 7 (700Mhz-Upper)",
     56             "Class 8 (1800Mhz-Upper)",
     57             "Class 9 (900Mhz)",
     58             "Class 10 (800Mhz-Secondary)",
     59             "Class 11 (Europe PAMR 400Mhz)",
     60             "Class 15 (US-AWS)",
     61             "Class 16 (US-2500Mhz)"
     62     };
     63 
     64     private ListView mBandList;
     65     private ArrayAdapter mBandListAdapter;
     66     private BandListItem mTargetBand = null;
     67     private DialogInterface mProgressPanel;
     68 
     69     private Phone mPhone = null;
     70 
     71     @Override
     72     protected void onCreate(Bundle icicle) {
     73         super.onCreate(icicle);
     74 
     75         requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
     76 
     77         setContentView(R.layout.band_mode);
     78 
     79         setTitle(getString(R.string.band_mode_title));
     80         getWindow().setLayout(WindowManager.LayoutParams.MATCH_PARENT,
     81                                     WindowManager.LayoutParams.WRAP_CONTENT);
     82 
     83         mPhone = PhoneFactory.getDefaultPhone();
     84 
     85         mBandList = (ListView) findViewById(R.id.band);
     86         mBandListAdapter = new ArrayAdapter<BandListItem>(this,
     87                 android.R.layout.simple_list_item_1);
     88         mBandList.setAdapter(mBandListAdapter);
     89         mBandList.setOnItemClickListener(mBandSelectionHandler);
     90 
     91         loadBandList();
     92     }
     93 
     94     private AdapterView.OnItemClickListener mBandSelectionHandler =
     95             new AdapterView.OnItemClickListener () {
     96                 public void onItemClick(AdapterView parent, View v,
     97                         int position, long id) {
     98 
     99                     getWindow().setFeatureInt(
    100                             Window.FEATURE_INDETERMINATE_PROGRESS,
    101                             Window.PROGRESS_VISIBILITY_ON);
    102 
    103                     mTargetBand = (BandListItem) parent.getAdapter().getItem(position);
    104 
    105                     if (DBG) log("Select band : " + mTargetBand.toString());
    106 
    107                     Message msg =
    108                             mHandler.obtainMessage(EVENT_BAND_SELECTION_DONE);
    109                     mPhone.setBandMode(mTargetBand.getBand(), msg);
    110                 }
    111             };
    112 
    113     static private class BandListItem {
    114         private int mBandMode = Phone.BM_UNSPECIFIED;
    115 
    116         public BandListItem(int bm) {
    117             mBandMode = bm;
    118         }
    119 
    120         public int getBand() {
    121             return mBandMode;
    122         }
    123 
    124         public String toString() {
    125             if (mBandMode >= BAND_NAMES.length) return "Band mode " + mBandMode;
    126             return BAND_NAMES[mBandMode];
    127         }
    128     }
    129 
    130     private void loadBandList() {
    131         String str = getString(R.string.band_mode_loading);
    132 
    133         if (DBG) log(str);
    134 
    135 
    136         //ProgressDialog.show(this, null, str, true, true, null);
    137         mProgressPanel = new AlertDialog.Builder(this)
    138             .setMessage(str)
    139             .show();
    140 
    141         Message msg = mHandler.obtainMessage(EVENT_BAND_SCAN_COMPLETED);
    142         mPhone.queryAvailableBandMode(msg);
    143 
    144     }
    145 
    146     private void bandListLoaded(AsyncResult result) {
    147         if (DBG) log("network list loaded");
    148 
    149         if (mProgressPanel != null) mProgressPanel.dismiss();
    150 
    151         clearList();
    152 
    153         boolean addBandSuccess = false;
    154         BandListItem item;
    155 
    156         if (result.result != null) {
    157             int bands[] = (int[])result.result;
    158 
    159             if(bands.length == 0) {
    160                 Log.wtf(LOG_TAG, "No Supported Band Modes");
    161                 return;
    162             }
    163 
    164             int size = bands[0];
    165 
    166             if (size > 0) {
    167                 mBandListAdapter.add(
    168                         new BandListItem(Phone.BM_UNSPECIFIED)); //Always include AUTOMATIC
    169                 for (int i=1; i<=size; i++) {
    170                     if (bands[i] == Phone.BM_UNSPECIFIED) {
    171                         continue;
    172                     }
    173                     item = new BandListItem(bands[i]);
    174                     mBandListAdapter.add(item);
    175                     if (DBG) log("Add " + item.toString());
    176                 }
    177                 addBandSuccess = true;
    178             }
    179         }
    180 
    181         if (addBandSuccess == false) {
    182             if (DBG) log("Error in query, add default list");
    183             for (int i=0; i<Phone.BM_NUM_BAND_MODES; i++) {
    184                 item = new BandListItem(i);
    185                 mBandListAdapter.add(item);
    186                 if (DBG) log("Add default " + item.toString());
    187             }
    188         }
    189         mBandList.requestFocus();
    190     }
    191 
    192     private void displayBandSelectionResult(Throwable ex) {
    193         String status = getString(R.string.band_mode_set)
    194                 +" [" + mTargetBand.toString() + "] ";
    195 
    196         if (ex != null) {
    197             status = status + getString(R.string.band_mode_failed);
    198         } else {
    199             status = status + getString(R.string.band_mode_succeeded);
    200         }
    201 
    202         mProgressPanel = new AlertDialog.Builder(this)
    203             .setMessage(status)
    204             .setPositiveButton(android.R.string.ok, null).show();
    205     }
    206 
    207     private void clearList() {
    208         while(mBandListAdapter.getCount() > 0) {
    209             mBandListAdapter.remove(
    210                     mBandListAdapter.getItem(0));
    211         }
    212     }
    213 
    214     private void log(String msg) {
    215         Log.d(LOG_TAG, "[BandsList] " + msg);
    216     }
    217 
    218     private Handler mHandler = new Handler() {
    219         public void handleMessage(Message msg) {
    220             AsyncResult ar;
    221             switch (msg.what) {
    222                 case EVENT_BAND_SCAN_COMPLETED:
    223                     ar = (AsyncResult) msg.obj;
    224 
    225                     bandListLoaded(ar);
    226                     break;
    227 
    228                 case EVENT_BAND_SELECTION_DONE:
    229                     ar = (AsyncResult) msg.obj;
    230 
    231                     getWindow().setFeatureInt(
    232                             Window.FEATURE_INDETERMINATE_PROGRESS,
    233                             Window.PROGRESS_VISIBILITY_OFF);
    234 
    235                     if (!isFinishing()) {
    236                         displayBandSelectionResult(ar.exception);
    237                     }
    238                     break;
    239             }
    240         }
    241     };
    242 
    243 
    244 }
    245