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POAndroid File Manager with Navigation Drawer
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2013-11-25T07:31:07.800
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I'm trying to implement a simple file manager with navigation drawer. I'm using custom listview for displaying the contents of SDcard. These are My files activity_main_drawer.xml (The main layout) <pre><code><android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/drawer_layout" android:layout_width="match_parent" android:layout_height="match_parent" >  <FrameLayout android:id="@+id/container" android:layout_width="match_parent" android:layout_height="match_parent" > </FrameLayout>  <ListView android:id="@+id/drawer" android:layout_width="320dp" android:layout_height="match_parent" android:layout_gravity="start" android:background="#F3F3F4" android:choiceMode="singleChoice" android:divider="@android:color/transparent" android:dividerHeight="0dp" /> </code></pre> file_view.xml (this is used as a custom list view) <pre><code> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_height="wrap_content" android:orientation="vertical" android:layout_width="fill_parent"> <ImageView android:id="@+id/fd_Icon1" android:layout_width="50dip" android:layout_height="50dip" > </ImageView> <TextView android:text="@+id/TextView01" android:id="@+id/TextView01" android:layout_width="wrap_content" android:layout_height="wrap_content" android:singleLine="true" android:textStyle="bold" android:layout_toRightOf="@+id/fd_Icon1" android:layout_marginTop="5dip" android:layout_marginLeft="5dip"> </TextView> <TextView android:text="@+id/TextView02" android:id="@+id/TextView02" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_toRightOf="@+id/fd_Icon1" android:layout_below="@+id/TextView01" android:layout_marginLeft="10dip"> </TextView> <TextView android:text="@+id/TextViewDate" android:id="@+id/TextViewDate" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/TextView01" android:layout_alignParentRight="true" android:layout_marginLeft="5dip"> </TextView> </RelativeLayout> </code></pre> MainActivity.java <pre><code>public class MainActivity extends FragmentActivity { private ListView mDrawerList; private DrawerLayout mDrawer; private CustomActionBarDrawerToggle mDrawerToggle; private String[] menuItems; private FileChooser filechooser; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main_drawer); //Gets the path of external storage // enable ActionBar app icon to behave as action to toggle nav drawer getActionBar().setDisplayHomeAsUpEnabled(true); getActionBar().setHomeButtonEnabled(true); mDrawer = (DrawerLayout) findViewById(R.id.drawer_layout); // set a custom shadow that overlays the main content when the drawer // opens mDrawer.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START); _initMenu(); mDrawerToggle = new CustomActionBarDrawerToggle(this, mDrawer); mDrawer.setDrawerListener(mDrawerToggle); Fragment fragment = new FileChooser(); android.app.FragmentManager fragmentManager = getFragmentManager(); fragmentManager.beginTransaction() .replace(R.id.container, fragment).commit(); } private void _initMenu() { NsMenuAdapter mAdapter = new NsMenuAdapter(this); // Add Header mAdapter.addHeader(R.string.ns_menu_main_header); // Add first block menuItems = getResources().getStringArray(R.array.ns_menu_items); String[] menuItemsIcon = getResources().getStringArray( R.array.ns_menu_items_icon); int res = 0; for (String item : menuItems) { int id_title = getResources().getIdentifier(item, "string", this.getPackageName()); int id_icon = getResources().getIdentifier(menuItemsIcon[res], "drawable", this.getPackageName()); NsMenuItemModel mItem = new NsMenuItemModel(id_title, id_icon); if (res == 1) mItem.counter = 12; // it is just an example... if (res == 3) mItem.counter = 3; // it is just an example... mAdapter.addItem(mItem); res++; } mAdapter.addHeader(R.string.ns_menu_main_header2); //add second block menuItems = getResources().getStringArray(R.array.ns_menu_items); String[] menuItemsIcon1 = getResources().getStringArray( R.array.ns_menu_items_icon); int res1 = 0; for (String item : menuItems) { int id_title = getResources().getIdentifier(item, "string", this.getPackageName()); int id_icon = getResources().getIdentifier(menuItemsIcon1[res1], "drawable", this.getPackageName()); NsMenuItemModel mItem = new NsMenuItemModel(id_title, id_icon); if (res1 == 1) mItem.counter = 12; // it is just an example... if (res1 == 3) mItem.counter = 3; // it is just an example... mAdapter.addItem(mItem); res1++; } mDrawerList = (ListView) findViewById(R.id.drawer); if (mDrawerList != null) mDrawerList.setAdapter(mAdapter); mDrawerList.setOnItemClickListener(new DrawerItemClickListener()); } @Override protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); // Sync the toggle state after onRestoreInstanceState has occurred. mDrawerToggle.syncState(); } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); mDrawerToggle.onConfigurationChanged(newConfig); } @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.main, menu); return super.onCreateOptionsMenu(menu); } /* Called whenever we call invalidateOptionsMenu() */ @Override public boolean onPrepareOptionsMenu(Menu menu) { // If the nav drawer is open, hide action items related to the content // view boolean drawerOpen = mDrawer.isDrawerOpen(mDrawerList); menu.findItem(R.id.action_save).setVisible(!drawerOpen); return super.onPrepareOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { /* * The action bar home/up should open or close the drawer. * ActionBarDrawerToggle will take care of this. */ if (mDrawerToggle.onOptionsItemSelected(item)) { return true; } // Handle your other action bar items... return super.onOptionsItemSelected(item); } /* * This is used to toggle the title on the action bar */ private class CustomActionBarDrawerToggle extends ActionBarDrawerToggle { public CustomActionBarDrawerToggle(Activity mActivity, DrawerLayout mDrawerLayout) { super(mActivity, mDrawerLayout, R.drawable.ic_drawer, R.string.ns_menu_open, R.string.ns_menu_close); } @Override public void onDrawerClosed(View view) { getActionBar().setTitle(getString(R.string.ns_menu_close)); invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu() } @Override public void onDrawerOpened(View drawerView) { getActionBar().setTitle(getString(R.string.ns_menu_open)); invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu() } } /* * Action to be performed when clicking item on the drawer */ private class DrawerItemClickListener implements ListView.OnItemClickListener { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { // Highlight the selected item, update the title, and close the // drawer // update selected item and title, then close the drawer mDrawerList.setItemChecked(position, true); String text = "menu click... should be implemented"; Toast.makeText(MainActivity.this, text, Toast.LENGTH_LONG).show(); // You should reset item counter mDrawer.closeDrawer(mDrawerList); } } } </code></pre> FileChooser.java <pre><code>public class FileChooser extends Fragment{ private File currentDir; public FileChooser() {}; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.file_view, container, false); currentDir = new File(Environment.getExternalStorageDirectory().getPath()); FileList flist = new FileList(); flist.fill(currentDir); return rootView; } /* * Method to fill the current layout with files and folders from the external directory * * @params: Path for the SD Card */ public class FileList extends ListActivity{ private File currentDir; private FileArrayAdapter adapter; void fill(File f) { File[]dirs = f.listFiles(); this.setTitle(f.getName()); List<Item>dir = new ArrayList<Item>(); List<Item>fls = new ArrayList<Item>(); try{ for(File ff: dirs) { Date lastModDate = new Date(ff.lastModified()); DateFormat formater = DateFormat.getDateTimeInstance(); String date_modify = formater.format(lastModDate); if(ff.isDirectory()){ File[] fbuf = ff.listFiles(); int buf = 0; if(fbuf != null){ buf = fbuf.length; } else buf = 0; String num_item = String.valueOf(buf); if(buf == 0) num_item = num_item + " item"; else num_item = num_item + " items"; //String formated = lastModDate.toString(); dir.add(new Item(ff.getName(),num_item,date_modify,ff.getAbsolutePath(),"directory_icon")); } else { fls.add(new Item(ff.getName(),ff.length() + " Byte", date_modify, ff.getAbsolutePath(),"file_icon")); } } }catch(Exception e) { } Collections.sort(dir); Collections.sort(fls); dir.addAll(fls); if(!f.getName().equalsIgnoreCase(Environment.getExternalStorageDirectory().getName())) dir.add(0,new Item("..","Parent Directory","",f.getParent(),"directory_up")); adapter = new FileArrayAdapter(FileList.this,R.layout.file_view,dir); this.setListAdapter(adapter); } @Override protected void onListItemClick(ListView l, View v, int position, long id) { // TODO Auto-generated method stub super.onListItemClick(l, v, position, id); Item o = adapter.getItem(position); if(o.getImage().equalsIgnoreCase("directory_icon")||o.getImage().equalsIgnoreCase("directory_up")){ currentDir = new File(o.getPath()); fill(currentDir); } else { onFileClick(o); } } private void onFileClick(Item o) { Toast.makeText(this, "Folder Clicked: "+ currentDir, Toast.LENGTH_SHORT).show(); } } } </code></pre> FileArrayAdapter.java <pre><code>public class FileArrayAdapter extends ArrayAdapter<Item>{ private Context c; private int id; private List<Item>items; public FileArrayAdapter(Context context, int textViewResourceId, List<Item> objects) { super(context, textViewResourceId, objects); c = context; id = textViewResourceId; items = objects; } public Item getItem(int i) { return items.get(i); } @Override public View getView(int position, View convertView, ViewGroup parent) { View v = convertView; if (v == null) { LayoutInflater vi = (LayoutInflater)c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); v = vi.inflate(id, null); } /* create a new view of my layout and inflate it in the row */ //convertView = ( RelativeLayout ) inflater.inflate( resource, null ); final Item o = items.get(position); if (o != null) { TextView t1 = (TextView) v.findViewById(R.id.TextView01); TextView t2 = (TextView) v.findViewById(R.id.TextView02); TextView t3 = (TextView) v.findViewById(R.id.TextViewDate); /* Take the ImageView from layout and set the city's image */ ImageView imageCity = (ImageView) v.findViewById(R.id.fd_Icon1); String uri = "drawable/" + o.getImage(); int imageResource = c.getResources().getIdentifier(uri, null, c.getPackageName()); Drawable image = c.getResources().getDrawable(imageResource); imageCity.setImageDrawable(image); if(t1!=null) t1.setText(o.getName()); if(t2!=null) t2.setText(o.getData()); if(t3!=null) t3.setText(o.getDate()); } return v; } } </code></pre> logcat <pre><code>11-25 11:48:33.382: E/AndroidRuntime(8819): FATAL EXCEPTION: main 11-25 11:48:33.382: E/AndroidRuntime(8819): Process: it.gmariotti.android.example.navigationdrawer, PID: 8819 11-25 11:48:33.382: E/AndroidRuntime(8819): java.lang.RuntimeException: Unable to start activity ComponentInfo{it.gmariotti.android.example.navigationdrawer/com.tdl.filemannavdrawer.MainActivity}: java.lang.IllegalStateException: System services not available to Activities before onCreate() 11-25 11:48:33.382: E/AndroidRuntime(8819): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2176) 11-25 11:48:33.382: E/AndroidRuntime(8819): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2226) 11-25 11:48:33.382: E/AndroidRuntime(8819): at android.app.ActivityThread.access$700(ActivityThread.java:135) 11-25 11:48:33.382: E/AndroidRuntime(8819): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1397) 11-25 11:48:33.382: E/AndroidRuntime(8819): at android.os.Handler.dispatchMessage(Handler.java:102) 11-25 11:48:33.382: E/AndroidRuntime(8819): at android.os.Looper.loop(Looper.java:137) 11-25 11:48:33.382: E/AndroidRuntime(8819): at android.app.ActivityThread.main(ActivityThread.java:4998) 11-25 11:48:33.382: E/AndroidRuntime(8819): at java.lang.reflect.Method.invokeNative(Native Method) 11-25 11:48:33.382: E/AndroidRuntime(8819): at java.lang.reflect.Method.invoke(Method.java:515) 11-25 11:48:33.382: E/AndroidRuntime(8819): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777) 11-25 11:48:33.382: E/AndroidRuntime(8819): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:593) 11-25 11:48:33.382: E/AndroidRuntime(8819): at dalvik.system.NativeStart.main(Native Method) 11-25 11:48:33.382: E/AndroidRuntime(8819): Caused by: java.lang.IllegalStateException: System services not available to Activities before onCreate() 11-25 11:48:33.382: E/AndroidRuntime(8819): at android.app.Activity.getSystemService(Activity.java:4531) 11-25 11:48:33.382: E/AndroidRuntime(8819): at android.widget.ArrayAdapter.init(ArrayAdapter.java:310) 11-25 11:48:33.382: E/AndroidRuntime(8819): at android.widget.ArrayAdapter.<init>(ArrayAdapter.java:153) 11-25 11:48:33.382: E/AndroidRuntime(8819): at com.tdl.filemannavdrawer.FileArrayAdapter.<init>(FileArrayAdapter.java:25) 11-25 11:48:33.382: E/AndroidRuntime(8819): at com.tdl.filemannavdrawer.FileChooser$FileList.fill(FileChooser.java:89) 11-25 11:48:33.382: E/AndroidRuntime(8819): at com.tdl.filemannavdrawer.FileChooser.onCreateView(FileChooser.java:35) 11-25 11:48:33.382: E/AndroidRuntime(8819): at android.app.Fragment.performCreateView(Fragment.java:1700) 11-25 11:48:33.382: E/AndroidRuntime(8819): at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:890) 11-25 11:48:33.382: E/AndroidRuntime(8819): at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1062) 11-25 11:48:33.382: E/AndroidRuntime(8819): at android.app.BackStackRecord.run(BackStackRecord.java:684) 11-25 11:48:33.382: E/AndroidRuntime(8819): at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1447) 11-25 11:48:33.382: E/AndroidRuntime(8819): at android.app.Activity.performStart(Activity.java:5252) 11-25 11:48:33.382: E/AndroidRuntime(8819): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2149) 11-25 11:48:33.382: E/AndroidRuntime(8819): ... 11 more </code></pre> In the FileChooser.java, I've called the list() in OnCreate(). Is there something wrong in that implementation? Anybody has a working example of file manager with navigation drawer which I can refer to?
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Android File Manager with Navigation Drawer
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