workspace/EverMemo/src/com/yuji/em/utility/PrefUtilImpl.java

   1 package com.yuji.em.utility;
   2
   3 import android.content.Context;
   4 import android.content.SharedPreferences;
   5 import android.content.SharedPreferences.Editor;
   6 import android.content.pm.PackageManager.NameNotFoundException;
   7
   8 public class PrefUtilImpl implements PrefUtil {
   9         private static final String EVER_CLIP_ACTIVITY = "EverMemoActivity";
  10         private static final String PACKAGE_COM_YUJI_EM = "com.yuji.em";
  11         private Context context;
  12
  13         public PrefUtilImpl(Context context) {
  14                 this.context = context;
  15         }
  16
  17         @Override
  18         public SharedPreferences getSharedPreferences(){
  19                 SharedPreferences pref = null;
  20                 try {
  21                         Context ctxt = context.createPackageContext(PACKAGE_COM_YUJI_EM,
  22                                         Context.CONTEXT_RESTRICTED);
  23                         pref = ctxt.getSharedPreferences(EVER_CLIP_ACTIVITY,
  24                                         Context.MODE_PRIVATE);
  25                 } catch (NameNotFoundException e) {
  26                         Debug.d(this, null, e);
  27                 }
  28                 return pref;
  29         }
  30
  31         @Override
  32         public void put(String key, String value) {
  33                 synchronized (this) {
  34                         SharedPreferences pref = getSharedPreferences();
  35                         if (pref == null){
  36                                 return;
  37                         }
  38
  39                         Editor e = pref.edit();
  40                         e.putString(key, value);
  41                         e.commit();
  42                 }
  43         }
  44
  45         @Override
  46         public void put(String key, int value) {
  47                 put(key, String.valueOf(value));
  48         }
  49
  50         @Override
  51         public void put(String key, long value) {
  52                 put(key, String.valueOf(value));
  53         }
  54
  55         @Override
  56         public String get(String key) {
  57                 String val;
  58
  59                 synchronized (this) {
  60                         SharedPreferences pref = getSharedPreferences();
  61                         if (pref == null){
  62                                 return null;
  63                         }
  64
  65                         val = pref.getString(key, null);
  66                 }
  67
  68                 return val;
  69         }
  70
  71         @Override
  72         public int getInt(String key) {
  73                 return Integer.parseInt(get(key));
  74         }
  75
  76         @Override
  77         public long getLong(String key) {
  78                 return Long.parseLong(get(key));
  79         }
  80
  81         @Override
  82         public String get(String key, String initValue) {
  83                 String value = get(key);
  84                 if (value != null) {
  85                         return value;
  86                 }
  87                 put(key, initValue);
  88                 return initValue;
  89         }
  90
  91         @Override
  92         public int getInt(String key, int initValue) {
  93                 return Integer.valueOf(get(key, String.valueOf(initValue)));
  94         }
  95
  96         @Override
  97         public long getLong(String key, long initValue) {
  98                 return Long.valueOf(get(key, String.valueOf(initValue)));
  99         }
 100
 101         @Override
 102         public void copy(String srcKey, String dstKey){
 103                 String value = get(srcKey);
 104                 put(dstKey, value);
 105         }
 106
 107         @Override
 108         public void remove(String key) {
 109                 put(key, null);
 110         }
 111 }