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1 package net.bgreco;
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1
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2 /**
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3 Copyright (C) 2011 by Brad Greco <brad@bgreco.net>
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0
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4
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1
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5 Permission is hereby granted, free of charge, to any person obtaining a copy
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6 of this software and associated documentation files (the "Software"), to deal
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7 in the Software without restriction, including without limitation the rights
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8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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9 copies of the Software, and to permit persons to whom the Software is
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10 furnished to do so, subject to the following conditions:
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11
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12 The above copyright notice and this permission notice shall be included in
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13 all copies or substantial portions of the Software.
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14
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15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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21 THE SOFTWARE.
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22 */
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0
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23 import java.io.File;
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24 import java.util.ArrayList;
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25 import java.util.Collections;
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26
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27 import android.app.ListActivity;
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28 import android.content.Context;
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29 import android.content.Intent;
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30 import android.os.Bundle;
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31 import android.os.Environment;
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32 import android.view.View;
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33 import android.widget.AdapterView;
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34 import android.widget.AdapterView.OnItemClickListener;
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35 import android.widget.ArrayAdapter;
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36 import android.widget.Button;
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37 import android.widget.ListView;
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38 import android.widget.Toast;
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39
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40 public class DirectoryPicker extends ListActivity {
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41
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42 public static final String START_DIR = "startDir";
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43 public static final String ONLY_DIRS = "onlyDirs";
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44 public static final String SHOW_HIDDEN = "showHidden";
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45 public static final String CHOSEN_DIRECTORY = "chosenDir";
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46 public static final int PICK_DIRECTORY = 43522432;
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47 private File dir;
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48
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49 @Override
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50 public void onCreate(Bundle savedInstanceState) {
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51 super.onCreate(savedInstanceState);
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52 Bundle extras = getIntent().getExtras();
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53 dir = Environment.getExternalStorageDirectory();
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54 String preferredStartDir = extras.getString(START_DIR);
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55 final boolean showHidden = extras.getBoolean(SHOW_HIDDEN, false);
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56 final boolean onlyDirs = extras.getBoolean(ONLY_DIRS, true);
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57 if(preferredStartDir != null) {
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58 File startDir = new File(preferredStartDir);
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59 if(startDir.isDirectory()) {
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60 dir = startDir;
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61 }
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62 }
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63
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64 setContentView(R.layout.chooser_list);
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65 setTitle(dir.getAbsolutePath());
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66 Button btnChoose = (Button) findViewById(R.id.btnChoose);
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67 String name = dir.getName();
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68 if(name.length() == 0)
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69 name = "/";
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70 btnChoose.setText("Choose " + "'" + name + "'");
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71 btnChoose.setOnClickListener(new View.OnClickListener() {
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72 public void onClick(View v) {
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73 returnDir(dir.getAbsolutePath());
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74 }
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75 });
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76
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77 ListView lv = getListView();
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78 lv.setTextFilterEnabled(true);
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79
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80 if(!dir.canRead()) {
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81 Context context = getApplicationContext();
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82 String msg = "Could not read folder contents.";
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83 Toast toast = Toast.makeText(context, msg, Toast.LENGTH_LONG);
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84 toast.show();
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85 return;
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86 }
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87
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88 final ArrayList<File> files = filter(dir.listFiles(), onlyDirs, showHidden);
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89 String[] names = names(files);
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90 setListAdapter(new ArrayAdapter<String>(this, R.layout.list_item, names));
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91
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92
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93 lv.setOnItemClickListener(new OnItemClickListener() {
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94 public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
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95 if(!files.get(position).isDirectory())
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96 return;
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97 String path = files.get(position).getAbsolutePath();
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98 Intent intent = new Intent(DirectoryPicker.this, DirectoryPicker.class);
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99 intent.putExtra(DirectoryPicker.START_DIR, path);
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100 intent.putExtra(DirectoryPicker.SHOW_HIDDEN, showHidden);
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101 intent.putExtra(DirectoryPicker.ONLY_DIRS, onlyDirs);
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102 startActivityForResult(intent, PICK_DIRECTORY);
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103 }
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104 });
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105 }
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106
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107 @Override
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108 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
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109 if(requestCode == PICK_DIRECTORY && resultCode == RESULT_OK) {
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110 Bundle extras = data.getExtras();
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111 String path = (String) extras.get(DirectoryPicker.CHOSEN_DIRECTORY);
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112 returnDir(path);
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113 }
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114 }
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115
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116 private void returnDir(String path) {
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117 Intent result = new Intent();
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118 result.putExtra(CHOSEN_DIRECTORY, path);
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119 setResult(RESULT_OK, result);
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120 finish();
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121 }
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122
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123 public ArrayList<File> filter(File[] file_list, boolean onlyDirs, boolean showHidden) {
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124 ArrayList<File> files = new ArrayList<File>();
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125 for(File file: file_list) {
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126 if(onlyDirs && !file.isDirectory())
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127 continue;
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128 if(!showHidden && file.isHidden())
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129 continue;
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130 files.add(file);
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131 }
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132 Collections.sort(files);
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133 return files;
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134 }
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135
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136 public String[] names(ArrayList<File> files) {
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137 String[] names = new String[files.size()];
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138 int i = 0;
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139 for(File file: files) {
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140 names[i] = file.getName();
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141 i++;
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142 }
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143 return names;
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144 }
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145 }
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146
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