Keep no change on dialoglayout.xml, refer last article "Implement custom file explorer dialog".
Main code:
package com.AndroidCustomDialog; import java.io.File; import java.util.ArrayList; import java.util.List; import android.app.Activity; import android.app.Dialog; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.view.View; import android.view.View.OnClickListener; import android.webkit.MimeTypeMap; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; public class AndroidCustomDialogActivity extends Activity { Button buttonOpenDialog; Button buttonUp; TextView textFolder; ImageView image; String KEY_TEXTPSS = "TEXTPSS"; static final int CUSTOM_DIALOG_ID = 0; ListView dialog_ListView; File root; File curFolder; private List<String> fileList = new ArrayList<String>(); /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); image = (ImageView)findViewById(R.id.image); buttonOpenDialog = (Button)findViewById(R.id.opendialog); buttonOpenDialog.setOnClickListener(new Button.OnClickListener(){ @Override public void onClick(View arg0) { showDialog(CUSTOM_DIALOG_ID); }}); root = new File(Environment .getExternalStorageDirectory() .getAbsolutePath()); curFolder = root; } @Override protected Dialog onCreateDialog(int id) { Dialog dialog = null; switch(id) { case CUSTOM_DIALOG_ID: dialog = new Dialog(AndroidCustomDialogActivity.this); dialog.setContentView(R.layout.dialoglayout); dialog.setTitle("Select JPG"); dialog.setCancelable(true); dialog.setCanceledOnTouchOutside(true); textFolder = (TextView)dialog.findViewById(R.id.folder); buttonUp = (Button)dialog.findViewById(R.id.up); buttonUp.setOnClickListener(new OnClickListener(){ @Override public void onClick(View v) { // TODO Auto-generated method stub ListDir(curFolder.getParentFile()); }}); //Prepare ListView in dialog dialog_ListView = (ListView)dialog.findViewById(R.id.dialoglist); dialog_ListView.setOnItemClickListener(new OnItemClickListener(){ @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { File selected = new File(fileList.get(position)); if(selected.isDirectory()){ ListDir(selected); }else { Toast.makeText(AndroidCustomDialogActivity.this, selected.toString() + " selected", Toast.LENGTH_LONG).show(); dismissDialog(CUSTOM_DIALOG_ID); Bitmap bm = BitmapFactory.decodeFile(selected.getAbsolutePath()); image.setImageBitmap(bm); } }}); break; } return dialog; } @Override protected void onPrepareDialog(int id, Dialog dialog, Bundle bundle) { // TODO Auto-generated method stub super.onPrepareDialog(id, dialog, bundle); switch(id) { case CUSTOM_DIALOG_ID: ListDir(curFolder); break; } } void ListDir(File f){ if(f.equals(root)){ buttonUp.setEnabled(false); }else{ buttonUp.setEnabled(true); } curFolder = f; textFolder.setText(f.getPath()); File[] files = f.listFiles(); fileList.clear(); for (File file : files){ if(file.isDirectory()){ fileList.add(file.getPath()); }else{ Uri selectedUri = Uri.fromFile(file); String fileExtension = MimeTypeMap.getFileExtensionFromUrl(selectedUri.toString()); if(fileExtension.equalsIgnoreCase("jpg")){ fileList.add(file.getPath()); } } } ArrayAdapter<String> directoryList = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, fileList); dialog_ListView.setAdapter(directoryList); } }
Main layout:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" /> <Button android:id="@+id/opendialog" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Load JPG" /> <ImageView android:id="@+id/image" android:layout_width="fill_parent" android:layout_height="wrap_content"/> </LinearLayout>
Related:
- Custom dialog to open folder, instead of individual file.
0 Response to "JPG File Chooser"
Posting Komentar