src/com/hughes/android/dictionary/PreferenceActivity.java

   1 // Copyright 2011 Google Inc. All Rights Reserved.
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // 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
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 package com.hughes.android.dictionary;
  16
  17 import android.app.AlertDialog;
  18 import android.content.SharedPreferences;
  19 import android.os.Bundle;
  20 import android.os.Build;
  21 import android.os.Environment;
  22 import android.preference.ListPreference;
  23 import android.preference.PreferenceManager;
  24
  25 import java.io.File;
  26 import java.util.List;
  27
  28 public class PreferenceActivity extends android.preference.PreferenceActivity
  29     implements SharedPreferences.OnSharedPreferenceChangeListener {
  30
  31     static boolean prefsMightHaveChanged = false;
  32
  33     @SuppressWarnings("deprecation")
  34     @Override
  35     public void onCreate(Bundle savedInstanceState) {
  36         final DictionaryApplication application = (DictionaryApplication) getApplication();
  37         setTheme(application.getSelectedTheme().themeId);
  38
  39         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
  40         if (prefs.getString(getString(R.string.quickdicDirectoryKey), "").equals("")) {
  41             prefs.edit().putString(getString(R.string.quickdicDirectoryKey), application.getDictDir().getAbsolutePath()).commit();
  42         }
  43         if (prefs.getString(getString(R.string.wordListFileKey), "").equals("")) {
  44             prefs.edit().putString(getString(R.string.wordListFileKey), application.getWordListFile().getAbsolutePath()).commit();
  45         }
  46
  47         /**
  48          * @author Dominik Köppl Preference: select default dictionary As this
  49          *         list is dynamically generated, we have to do it in this
  50          *         fashion
  51          */
  52         super.onCreate(savedInstanceState);
  53         addPreferencesFromResource(R.xml.preferences);
  54         ListPreference defaultDic = (ListPreference) findPreference(getResources().getString(
  55                                         R.string.defaultDicKey));
  56         List<DictionaryInfo> dicts = application.getDictionariesOnDevice(null);
  57
  58         final CharSequence[] entries = new CharSequence[dicts.size()];
  59         final CharSequence[] entryvalues = new CharSequence[dicts.size()];
  60
  61         for (int i = 0; i < entries.length; ++i) {
  62             entries[i] = dicts.get(i).dictInfo;
  63             entryvalues[i] = dicts.get(i).uncompressedFilename;
  64         }
  65
  66         defaultDic.setEntries(entries);
  67         defaultDic.setEntryValues(entryvalues);
  68     }
  69
  70     @Override
  71     protected void onPause() {
  72         super.onPause();
  73         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
  74         prefs.unregisterOnSharedPreferenceChangeListener(this);
  75     }
  76
  77     @Override
  78     protected void onResume() {
  79         super.onResume();
  80         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
  81         prefs.registerOnSharedPreferenceChangeListener(this);
  82     }
  83
  84     @Override
  85     public void onContentChanged() {
  86         super.onContentChanged();
  87     }
  88
  89     @Override
  90     public void onSharedPreferenceChanged(SharedPreferences p, String v) {
  91         final DictionaryApplication application = (DictionaryApplication)getApplication();
  92         File dictDir = application.getDictDir();
  93         if (!dictDir.isDirectory() || !dictDir.canWrite() ||
  94                 !application.checkFileCreate(dictDir)) {
  95             String dirs = "";
  96             String externalDir = Environment.getExternalStorageDirectory().getAbsolutePath();
  97             if (new File(externalDir).canWrite())
  98                 dirs += "\n" + externalDir + "/quickDic";
  99             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
 100                 File[] files = getApplicationContext().getExternalFilesDirs(null);
 101                 for (File f : files) {
 102                     if (f.canWrite())
 103                         dirs += "\n" + f.getAbsolutePath();
 104                 }
 105             } else {
 106                 File efd = null;
 107                 try {
 108                     efd = getApplicationContext().getExternalFilesDir(null);
 109                 } catch (Exception e) {
 110                 }
 111                 if (efd != null) {
 112                     String externalFilesDir = efd.getAbsolutePath();
 113                     if (new File(externalFilesDir).canWrite())
 114                         dirs += "\n" + externalFilesDir;
 115                 }
 116             }
 117             File fd = getApplicationContext().getFilesDir();
 118             if (fd.canWrite())
 119                 dirs += "\n" + fd.getAbsolutePath();
 120             new AlertDialog.Builder(this).setTitle(getString(R.string.error))
 121             .setMessage(getString(R.string.chosenNotWritable) + dirs)
 122             .setNeutralButton("Close", null).show();
 123         }
 124     }
 125 }