ファイルチューザーを作成し、フォルダーとファイルをに追加しましたListView。しかし、アイテムクリックでそれは私ArrayIndexOutOfBoundsExceptionの視点で私を正しい位置に与えます。誰かが問題が何であるか教えてもらえますか？
FileUpload.Java
public class FileUpload extends ListActivity {
private static final String ITEM_KEY = "key";
Boolean contains=false;
private static final String ITEM_IMAGE = "image";
private static String ROOT = "/";
public static final String START_PATH = "START_PATH";
public static final String RESULT_PATH = "RESULT_PATH";
private List<String> item = null;
private List<String> path = null;
public static final String FORMAT_FILTER = "FORMAT_FILTER";
private TextView myPath;
private EditText mFileName;
private static String currentpath;
private LinkedHashMap<String, Integer> lastPositions = new LinkedHashMap<String, Integer>();
private ArrayList<HashMap<String, Object>> mList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_file_upload);
myPath = (TextView) findViewById(R.id.path);
mFileName = (EditText) findViewById (R.id.fdEditTextFile);
String startPath = getIntent().getStringExtra(START_PATH);
startPath = startPath != null ? startPath : ROOT;
getDir(startPath);
}
public void getDir(String DirPath){
/*Integer position = lastPositions.get(parentPath);*/
if(DirPath!=null){
getDirImpl(DirPath);
}
}
public void getDirImpl(final String dirpath){
currentpath = dirpath;
myPath.setText("Location is:"+currentpath);
item = new ArrayList<String>();
path = new ArrayList<String>();
mList=new ArrayList<HashMap<String,Object>>();
File f=new File(currentpath);
File[] files=f.listFiles();
if (!currentpath.equals(ROOT)) {
item.add(ROOT);
addItem(ROOT, R.drawable.folder);
item.add("../");
addItem("../", R.drawable.folder);
path.add(f.getParent());
}
TreeMap<String, String> dirsMap = new TreeMap<String, String>();
TreeMap<String, String> dirsPathMap = new TreeMap<String, String>();
TreeMap<String, String> filesMap = new TreeMap<String, String>();
TreeMap<String, String> filesPathMap = new TreeMap<String, String>();
for(int i=0;i<files.length;i++){
File file = files[i];
if(file.isDirectory()){
path.add(file.getPath());
String dirName=file.getName()+"/";
dirsMap.put(dirName, dirName);
dirsPathMap.put(dirName, file.getPath());
}
else{
final String fileName=file.getName();
filesMap.put(fileName, fileName);
filesPathMap.put(fileName, file.getPath());
}
}
item.addAll(dirsMap.tailMap("").values());
item.addAll(filesMap.tailMap("").values());
item.addAll(dirsPathMap.tailMap("").values());
SimpleAdapter fileList = new SimpleAdapter(this, mList, R.layout.file_dialog_row, new String[] {
ITEM_KEY, ITEM_IMAGE }, new int[] { R.id.fdrowtext, R.id.fdrowimage });
for(String dir:dirsMap.tailMap("").values()){
addItem(dir, R.drawable.folder);
}
for(String file:filesMap.tailMap("").values()){
addItem(file,R.drawable.file);
}
fileList.notifyDataSetChanged();
setListAdapter(fileList);
}
public void addItem(String FileName,int imageid){
HashMap<String,Object>item=new HashMap<String, Object>();
item.put(ITEM_KEY, FileName);
item.put(ITEM_IMAGE, imageid);
mList.add(item);
}
protected void onListItemClick(ListView l, View v, int position, long id) {
File file = new File(path.get(position));
if (file.isDirectory()) {
if (file.canRead()) {
lastPositions.put(currentpath, position);
getDir(path.get(position));
}
} else {
String filename=file.getName();
mFileName.setText(filename);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_file_upload, menu);
return true;
}
}
StackRace
12-03 18:08:31.458: E/AndroidRuntime(1784): FATAL EXCEPTION: main
12-03 18:08:31.458: E/AndroidRuntime(1784): java.lang.IndexOutOfBoundsException: Invalid index 10, size is 0
12-03 18:08:31.458: E/AndroidRuntime(1784): at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:257)
12-03 18:08:31.458: E/AndroidRuntime(1784): at java.util.ArrayList.get(ArrayList.java:311)
12-03 18:08:31.458: E/AndroidRuntime(1784): at com.example.projectupload.FileUpload.onListItemClick(FileUpload.java:112)
12-03 18:08:31.458: E/AndroidRuntime(1784): at android.app.ListActivity$2.onItemClick(ListActivity.java:321)
12-03 18:08:31.458: E/AndroidRuntime(1784): at android.widget.AdapterView.performItemClick(AdapterView.java:284)
12-03 18:08:31.458: E/AndroidRuntime(1784): at android.widget.ListView.performItemClick(ListView.java:3382)
12-03 18:08:31.458: E/AndroidRuntime(1784): at android.widget.AbsListView$PerformClick.run(AbsListView.java:1696)
12-03 18:08:31.458: E/AndroidRuntime(1784): at android.os.Handler.handleCallback(Handler.java:587)
12-03 18:08:31.458: E/AndroidRuntime(1784): at android.os.Handler.dispatchMessage(Handler.java:92)
12-03 18:08:31.458: E/AndroidRuntime(1784): at android.os.Looper.loop(Looper.java:123)
12-03 18:08:31.458: E/AndroidRuntime(1784): at android.app.ActivityThread.main(ActivityThread.java:4627)
12-03 18:08:31.458: E/AndroidRuntime(1784): at java.lang.reflect.Method.invokeNative(Native Method)
12-03 18:08:31.458: E/AndroidRuntime(1784): at java.lang.reflect.Method.invoke(Method.java:521)
12-03 18:08:31.458: E/AndroidRuntime(1784): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
12-03 18:08:31.458: E/AndroidRuntime(1784): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
12-03 18:08:31.458: E/AndroidRuntime(1784): at dalvik.system.NativeStart.main(Native Method)