Java tutorial
/******************************************************************************* * Copyright 2012-2013 Trento RISE * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. ******************************************************************************/ package com.dropbox.android.sample; import java.io.IOException; import java.util.ArrayList; import org.apache.http.client.ClientProtocolException; import android.app.Activity; import android.content.Intent; import android.graphics.BitmapFactory; import android.provider.MediaStore; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.ImageView; import android.widget.TextView; import eu.trentorise.smartcampus.protocolcarrier.exceptions.ConnectionException; import eu.trentorise.smartcampus.protocolcarrier.exceptions.ProtocolException; import eu.trentorise.smartcampus.protocolcarrier.exceptions.SecurityException; import eu.trentorise.smartcampus.storage.Filestorage; import eu.trentorise.smartcampus.storage.model.Resource; public class ResAdapter extends ArrayAdapter<String> { private Activity context; private int layoutResourceId; private Filestorage storage; public ResAdapter(Activity context, int textViewResourceId) { super(context, textViewResourceId, new ArrayList<String>()); this.context = context; layoutResourceId = textViewResourceId; storage = new Filestorage(getContext(), "smartcampus", Constants.APPTOKEN, Constants.HOST, Constants.SERVICE); } @Override public View getView(int position, View convertView, ViewGroup parent) { View row = convertView; DataHolder holder = null; if (row == null) { LayoutInflater inflater = context.getLayoutInflater(); row = inflater.inflate(layoutResourceId, parent, false); holder = new DataHolder(); holder.res_name = (TextView) row.findViewById(R.id.resname); holder.res_delete = (Button) row.findViewById(R.id.button1); holder.res_view = (Button) row.findViewById(R.id.button3); holder.res_update = (Button) row.findViewById(R.id.button2); row.setTag(holder); } else holder = (DataHolder) row.getTag(); String res = getItem(position); holder.res_name.setText(res); holder.res_delete.setOnClickListener(new ResDeleteOnClickListener(res)); holder.res_view.setOnClickListener(new ResViewOnClickListener(res, context.findViewById(R.id.imageView1))); holder.res_update.setOnClickListener(new ResUpdateOnClickListener(res, null)); return row; } static class DataHolder { TextView res_name; Button res_delete; Button res_update; Button res_view; } class ResDeleteOnClickListener implements OnClickListener { String res; public ResDeleteOnClickListener(String res) { this.res = res; } @Override public void onClick(View v) { try { storage.deleteResource(Constants.AUTH_TOKEN, Constants.USER_ACCOUNT_ID, res); remove(res); } catch (ProtocolException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (ConnectionException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SecurityException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } class ResViewOnClickListener implements OnClickListener { String res; View img; public ResViewOnClickListener(String res, View img) { this.res = res; this.img = img; } @Override public void onClick(View v) { try { Resource r = storage.getResource(Constants.AUTH_TOKEN, res); ImageView view = (ImageView) img; view.setImageBitmap(BitmapFactory.decodeByteArray(r.getContent(), 0, r.getContent().length)); } catch (ClientProtocolException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (ProtocolException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (ConnectionException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SecurityException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } remove(res); } } class ResUpdateOnClickListener implements OnClickListener { String res; View img; public ResUpdateOnClickListener(String res, View img) { this.res = res; this.img = img; } @Override public void onClick(View v) { Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); ((MyActivity) context).rid = res; context.startActivityForResult(intent, 10000); } } }