Mercurial > directorypicker
annotate src/net/bgreco/DirectoryPicker.java @ 2:a684ded7d920 default tip
Prevent crash when not passed a bundle. Thanks to Curtis Tuplin for the fix.
| author | Brad Greco |
|---|---|
| date | Wed, 30 May 2012 21:33:07 -0500 |
| parents | adceb82e0818 |
| children |
| rev | line source |
|---|---|
| 0 | 1 package net.bgreco; |
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a684ded7d920
Prevent crash when not passed a bundle. Thanks to Curtis Tuplin for the fix.
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2 |
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Prevent crash when not passed a bundle. Thanks to Curtis Tuplin for the fix.
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3 import java.io.File; |
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4 import java.util.ArrayList; |
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5 import java.util.Collections; |
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6 |
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7 import android.app.ListActivity; |
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8 import android.content.Context; |
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9 import android.content.Intent; |
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10 import android.os.Bundle; |
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11 import android.os.Environment; |
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12 import android.view.View; |
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13 import android.widget.AdapterView; |
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14 import android.widget.AdapterView.OnItemClickListener; |
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15 import android.widget.ArrayAdapter; |
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16 import android.widget.Button; |
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17 import android.widget.ListView; |
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18 import android.widget.Toast; |
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19 |
| 1 | 20 /** |
| 21 Copyright (C) 2011 by Brad Greco <brad@bgreco.net> | |
| 0 | 22 |
| 1 | 23 Permission is hereby granted, free of charge, to any person obtaining a copy |
| 24 of this software and associated documentation files (the "Software"), to deal | |
| 25 in the Software without restriction, including without limitation the rights | |
| 26 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| 27 copies of the Software, and to permit persons to whom the Software is | |
| 28 furnished to do so, subject to the following conditions: | |
| 29 | |
| 30 The above copyright notice and this permission notice shall be included in | |
| 31 all copies or substantial portions of the Software. | |
| 32 | |
| 33 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| 34 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| 35 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| 36 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| 37 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| 38 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
| 39 THE SOFTWARE. | |
| 40 */ | |
| 0 | 41 |
| 42 public class DirectoryPicker extends ListActivity { | |
| 43 | |
| 44 public static final String START_DIR = "startDir"; | |
| 45 public static final String ONLY_DIRS = "onlyDirs"; | |
| 46 public static final String SHOW_HIDDEN = "showHidden"; | |
| 47 public static final String CHOSEN_DIRECTORY = "chosenDir"; | |
| 48 public static final int PICK_DIRECTORY = 43522432; | |
| 49 private File dir; | |
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Prevent crash when not passed a bundle. Thanks to Curtis Tuplin for the fix.
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50 private boolean showHidden = false; |
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51 private boolean onlyDirs = true ; |
| 0 | 52 |
| 53 @Override | |
| 54 public void onCreate(Bundle savedInstanceState) { | |
| 55 super.onCreate(savedInstanceState); | |
| 56 Bundle extras = getIntent().getExtras(); | |
| 57 dir = Environment.getExternalStorageDirectory(); | |
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Prevent crash when not passed a bundle. Thanks to Curtis Tuplin for the fix.
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58 if (extras != null) { |
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59 String preferredStartDir = extras.getString(START_DIR); |
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a684ded7d920
Prevent crash when not passed a bundle. Thanks to Curtis Tuplin for the fix.
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parents:
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60 showHidden = extras.getBoolean(SHOW_HIDDEN, false); |
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a684ded7d920
Prevent crash when not passed a bundle. Thanks to Curtis Tuplin for the fix.
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61 onlyDirs = extras.getBoolean(ONLY_DIRS, true); |
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Prevent crash when not passed a bundle. Thanks to Curtis Tuplin for the fix.
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62 if(preferredStartDir != null) { |
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Prevent crash when not passed a bundle. Thanks to Curtis Tuplin for the fix.
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63 File startDir = new File(preferredStartDir); |
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64 if(startDir.isDirectory()) { |
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Prevent crash when not passed a bundle. Thanks to Curtis Tuplin for the fix.
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65 dir = startDir; |
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66 } |
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Prevent crash when not passed a bundle. Thanks to Curtis Tuplin for the fix.
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67 } |
| 0 | 68 } |
| 69 | |
| 70 setContentView(R.layout.chooser_list); | |
| 71 setTitle(dir.getAbsolutePath()); | |
| 72 Button btnChoose = (Button) findViewById(R.id.btnChoose); | |
| 73 String name = dir.getName(); | |
| 74 if(name.length() == 0) | |
| 75 name = "/"; | |
| 76 btnChoose.setText("Choose " + "'" + name + "'"); | |
| 77 btnChoose.setOnClickListener(new View.OnClickListener() { | |
| 78 public void onClick(View v) { | |
| 79 returnDir(dir.getAbsolutePath()); | |
| 80 } | |
| 81 }); | |
| 82 | |
| 83 ListView lv = getListView(); | |
| 84 lv.setTextFilterEnabled(true); | |
| 85 | |
| 86 if(!dir.canRead()) { | |
| 87 Context context = getApplicationContext(); | |
| 88 String msg = "Could not read folder contents."; | |
| 89 Toast toast = Toast.makeText(context, msg, Toast.LENGTH_LONG); | |
| 90 toast.show(); | |
| 91 return; | |
| 92 } | |
| 93 | |
| 94 final ArrayList<File> files = filter(dir.listFiles(), onlyDirs, showHidden); | |
| 95 String[] names = names(files); | |
| 96 setListAdapter(new ArrayAdapter<String>(this, R.layout.list_item, names)); | |
| 97 | |
| 98 | |
| 99 lv.setOnItemClickListener(new OnItemClickListener() { | |
| 100 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { | |
| 101 if(!files.get(position).isDirectory()) | |
| 102 return; | |
| 103 String path = files.get(position).getAbsolutePath(); | |
| 104 Intent intent = new Intent(DirectoryPicker.this, DirectoryPicker.class); | |
| 105 intent.putExtra(DirectoryPicker.START_DIR, path); | |
| 106 intent.putExtra(DirectoryPicker.SHOW_HIDDEN, showHidden); | |
| 107 intent.putExtra(DirectoryPicker.ONLY_DIRS, onlyDirs); | |
| 108 startActivityForResult(intent, PICK_DIRECTORY); | |
| 109 } | |
| 110 }); | |
| 111 } | |
| 112 | |
| 113 @Override | |
| 114 protected void onActivityResult(int requestCode, int resultCode, Intent data) { | |
| 115 if(requestCode == PICK_DIRECTORY && resultCode == RESULT_OK) { | |
| 116 Bundle extras = data.getExtras(); | |
| 117 String path = (String) extras.get(DirectoryPicker.CHOSEN_DIRECTORY); | |
| 118 returnDir(path); | |
| 119 } | |
| 120 } | |
| 121 | |
| 122 private void returnDir(String path) { | |
| 123 Intent result = new Intent(); | |
| 124 result.putExtra(CHOSEN_DIRECTORY, path); | |
| 125 setResult(RESULT_OK, result); | |
| 126 finish(); | |
| 127 } | |
| 128 | |
| 129 public ArrayList<File> filter(File[] file_list, boolean onlyDirs, boolean showHidden) { | |
| 130 ArrayList<File> files = new ArrayList<File>(); | |
| 131 for(File file: file_list) { | |
| 132 if(onlyDirs && !file.isDirectory()) | |
| 133 continue; | |
| 134 if(!showHidden && file.isHidden()) | |
| 135 continue; | |
| 136 files.add(file); | |
| 137 } | |
| 138 Collections.sort(files); | |
| 139 return files; | |
| 140 } | |
| 141 | |
| 142 public String[] names(ArrayList<File> files) { | |
| 143 String[] names = new String[files.size()]; | |
| 144 int i = 0; | |
| 145 for(File file: files) { | |
| 146 names[i] = file.getName(); | |
| 147 i++; | |
| 148 } | |
| 149 return names; | |
| 150 } | |
| 151 } | |
| 152 |