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上传时间: 2013-07-20
详细说明： 目录选择器源代码 chooserdialog.xml ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Dirchooserdialog代码 ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 package hkp.dirchooser; import java.io.File; import java.util.ArrayList; import java.util.List; import android.app.Dialog; import android.content.Context; import android.os.Bundle; import android.os.Environment; import android.os.Handler; import android.view.Gravity; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.EditText; import android.widget.LinearLayout; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; /** * @author HKP 2011-6-17 * */ public class DirChooserDialog extends Dialog implements android.view.View.OnClickListener { private ListView list; ArrayAdapter Adapter; ArrayList arr = new ArrayList(); Context context; private String path; private TextView title; private EditText et; private Button home, back, ok; private LinearLayout titleView; private int type = 1; private String[] fileType = null; public final static int TypeOpen = 1; public final static int TypeSave = 2; /** * @param context * @param type * 值为1表示创建打开目录类型的对话框，2为创建保存文件到目录类型的对话框 * @param fileType * 要过滤的文件类型,null表示只选择目录 * @param resultPath * 点OK按钮返回的结果，目录或者目录+文件名 */ public DirChooserDialog(Context context, int type, String[] fileType, String resultPath) { super(context); this.context = context; this.type = type; this.fileType = fileType; this.path = resultPath; } /** * (non-Javadoc) * * @see android.app.Dialog#dismiss() */ @Override public void dismiss() { // TODO Auto-generated method stub super.dismiss(); } /** * (non-Javadoc) * * @see android.app.Dialog#onCreate(android.os.Bundle) */ @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.chooserdialog); path = getRootDir(); arr = (ArrayList) getDirs(path); Adapter = new ArrayAdapter(context, android.R.layout.simple_list_item_1, arr); list = (ListView) findViewById(R.id.list_dir); list.setAdapter(Adapter); list.setOnItemClickListener(lvLis); home = (Button) findViewById(R.id.btn_home); home.setOnClickListener(this); back = (Button) findViewById(R.id.btn_back); back.setOnClickListener(this); ok = (Button) findViewById(R.id.btn_ok); ok.setOnClickListener(this); titleView = (LinearLayout) findViewById(R.id.dir_layout); if (type == TypeOpen) { title = new TextView(context); titleView.addView(title); title.setText(path); } else if (type == TypeSave) { et = new EditText(context); et.setWidth(240); et.setHeight(70); et.setGravity(Gravity.CENTER); et.setPadding(0, 2, 0, 0); titleView.addView(et); et.setText("wfFileName"); } // title = (TextView) findViewById(R.id.dir_str); // title.setText(path); } // 动态更新ListView Runnable add = new Runnable() { @Override public void run() { // TODO Auto-generated method stub arr.clear(); // System.out.println("Runnable path:"+path); // 必须得用这种方法为arr赋值才能更新 List temp = getDirs(path); for (int i = 0; i < temp.size(); i++) arr.add(temp.get(i)); Adapter.notifyDataSetChanged(); } }; private OnItemClickListener lvLis = new OnItemClickListener() { @Override public void onItemClick(AdapterView arg0, View arg1, int arg2, long arg3) { String temp = (String) arg0.getItemAtPosition(arg2); // System.out.println("OnItemClick path1:"+path); if (temp.equals("..")) path = getSubDir(path); else if (path.equals("/")) path = path + temp; else path = path + "/" + temp; // System.out.println("OnItemClick path2"+path); if (type == TypeOpen) title.setText(path); Handler handler = new Handler(); handler.post(add); } }; private List getDirs(String ipath) { List file = new ArrayList(); // System.out.println("GetDirs path:"+ipath); File[] myFile = new File(ipath).listFiles(); if (myFile == null) { file.add(".."); } else for (File f : myFile) { // 过滤目录 if (f.isDirectory()) { String tempf = f.toString(); int pos = tempf.lastIndexOf("/"); String subTemp = tempf.substring(pos + 1, tempf.length()); // String subTemp = // tempf.substring(path.length(),tempf.length()); file.add(subTemp); // System.out.println("files in dir:"+subTemp); } // 过滤知道类型的文件 if (f.isFile() && fileType != null) { for (int i = 0; i < fileType.length; i++) { int typeStrLen = fileType[i].length(); String fileName = f.getPath().substring( f.getPath().length() - typeStrLen); if (fileName.toLowerCase().equals(fileType[i])) { file.add(f.toString().substring(path.length() + 1, f.toString().length())); } } } } if (file.size() == 0) file.add(".."); // System.out.println("file[0]:"+file.get(0)+" File size:"+file.size()); return file; } /** * (non-Javadoc) * * @see android.view.View.OnClickListener#onClick(android.view.View) */ @Override public void onClick(View v) { // TODO Auto-generated method stub if (v.getId() == home.getId()) { path = getRootDir(); if (type == TypeOpen) title.setText(path); Handler handler = new Handler(); handler.post(add); } else if (v.getId() == back.getId()) { path = getSubDir(path); if (type == TypeOpen) title.setText(path); Handler handler = new Handler(); handler.post(add); } else if (v.getId() == ok.getId()) { dismiss(); if (type == TypeSave) path = path + "/" + et.getEditableText().toString() + ".wf"; Toast.makeText(context, path, Toast.LENGTH_SHORT).show(); } } private String getSDPath() { File sdDir = null; boolean sdCardExist = Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED); // 判断sd卡是否存在 if (sdCardExist) { sdDir = Environment.getExternalStorageDirectory();// 获取根目录 } if (sdDir == null) { // Toast.makeText(context, // "No SDCard inside!",Toast.LENGTH_SHORT).show(); return null; } return sdDir.toString(); } private String getRootDir() { String root = "/"; path = getSDPath(); if (path == null) path = "/"; return root; } private String getSubDir(String path) { String subpath = null; int pos = path.lastIndexOf("/"); if (pos == path.length()) { path = path.substring(0, path.length() - 1); pos = path.lastIndexOf("/"); } subpath = path.substring(0, pos); if (pos == 0) subpath = path; return subpath; } } Mainactivity代码 ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 package hkp.dirchooser; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; public class MainActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Button btn = (Button) findViewById(R.id.btn_open); btn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub String path = null; String[] fileType = { "dst" };// 要过滤的文件类型列表 DirChooserDialog dlg = new DirChooserDialog(MainActivity.this, 2, fileType, path); dlg.setTitle("Choose dst file dir"); dlg.show(); } }); } } ...展开收缩
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