dialoglayout.xml, the layout of the custom dialog.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/customdialog" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="20dp" android:minWidth="300dp"> <LinearLayout android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_margin="10dp"> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/ic_launcher"/> <Button android:id="@+id/up" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Parent folder"/> </LinearLayout> <TextView android:id="@+id/folder" android:layout_width="wrap_content" android:layout_height="wrap_content"/> <ListView android:id="@+id/dialoglist" android:layout_width="fill_parent" android:layout_height="wrap_content" /> </LinearLayout>
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.os.Bundle; import android.os.Environment; import android.view.View; import android.view.View.OnClickListener; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; public class AndroidCustomDialogActivity extends Activity { Button buttonOpenDialog; Button buttonUp; TextView textFolder; 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); 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("Custom Dialog"); 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); } }}); 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){ 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="Open Dialog" /> </LinearLayout>
Next:
- JPG File Chooser
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