Android Open Source - ACM_Pi_Cloud Main Activity

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License

The source code is released under:
MIT License
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Java Source Code

/* ownCloud Android Library is available under MIT license
 *   Copyright (C) 2014 ownCloud Inc./*from   w  w w .j a  v a 2  s .  c om*/
 *   
 *   Permission is hereby granted, free of charge, to any person obtaining a copy
 *   of this software and associated documentation files (the "Software"), to deal
 *   in the Software without restriction, including without limitation the rights
 *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *   copies of the Software, and to permit persons to whom the Software is
 *   furnished to do so, subject to the following conditions:
 *   
 *   The above copyright notice and this permission notice shall be included in
 *   all copies or substantial portions of the Software.
 *   
 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
 *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
 *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
 *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
 *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
 *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 *   THE SOFTWARE.
 *
 */

package com.owncloud.android.lib.sampleclient;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import com.owncloud.android.lib.common.accounts.AccountUtils;
import com.owncloud.android.lib.common.network.OnDatatransferProgressListener;
import com.owncloud.android.lib.common.OwnCloudClientFactory;
import com.owncloud.android.lib.common.OwnCloudClient;
import com.owncloud.android.lib.common.OwnCloudCredentialsFactory;
import com.owncloud.android.lib.common.operations.OnRemoteOperationListener;
import com.owncloud.android.lib.resources.files.RemoteFile;
import com.owncloud.android.lib.common.operations.RemoteOperation;
import com.owncloud.android.lib.common.operations.RemoteOperationResult;
import com.owncloud.android.lib.resources.files.DownloadRemoteFileOperation;
import com.owncloud.android.lib.resources.files.ReadRemoteFolderOperation;
import com.owncloud.android.lib.resources.files.RemoveRemoteFileOperation;
import com.owncloud.android.lib.resources.files.UploadRemoteFileOperation;
import com.owncloud.android.lib.resources.files.FileUtils;

import android.app.Activity;
import android.content.res.AssetManager;
import android.graphics.drawable.BitmapDrawable;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity implements OnRemoteOperationListener, OnDatatransferProgressListener {
  
  private static String LOG_TAG = MainActivity.class.getCanonicalName();  
  
  private Handler mHandler;
  
  private OwnCloudClient mClient; 
  
  private FilesArrayAdapter mFilesAdapter;
  
  private View mFrame;
  
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        mHandler = new Handler();
        
      Uri serverUri = Uri.parse(getString(R.string.server_base_url) + AccountUtils.WEBDAV_PATH_4_0);
      mClient = OwnCloudClientFactory.createOwnCloudClient(serverUri, this, true);
      mClient.setCredentials(
          OwnCloudCredentialsFactory.newBasicCredentials(
              getString(R.string.username), 
              getString(R.string.password)
        )
    );
      
      mFilesAdapter = new FilesArrayAdapter(this, R.layout.file_in_list);
      ((ListView)findViewById(R.id.list_view)).setAdapter(mFilesAdapter);
      
      // TODO move to background thread or task
      AssetManager assets = getAssets();
    try {
      String sampleFileName = getString(R.string.sample_file_name); 
        File upFolder = new File(getCacheDir(), getString(R.string.upload_folder_path));
        upFolder.mkdir();
        File upFile = new File(upFolder, sampleFileName);
        FileOutputStream fos = new FileOutputStream(upFile);
        InputStream is = assets.open(sampleFileName);
        int count = 0;
        byte[] buffer = new byte[1024];
        while ((count = is.read(buffer, 0, buffer.length)) >= 0) {
          fos.write(buffer, 0, count);
        }
        is.close();
        fos.close();
    } catch (IOException e) {
      Toast.makeText(this, R.string.error_copying_sample_file, Toast.LENGTH_SHORT).show();
      Log.e(LOG_TAG, getString(R.string.error_copying_sample_file), e);
    }
    
    mFrame = findViewById(R.id.frame);
    }
    
    
    @Override
    public void onDestroy() {
      File upFolder = new File(getCacheDir(), getString(R.string.upload_folder_path));
      File upFile = upFolder.listFiles()[0];
      upFile.delete();
      upFolder.delete();
      super.onDestroy();
    }
    
    
    public void onClickHandler(View button) {
      switch (button.getId())  {
        case R.id.button_refresh:
          startRefresh();
          break;
        case R.id.button_upload:
          startUpload();
          break;
        case R.id.button_delete_remote:
          startRemoteDeletion();
          break;
        case R.id.button_download:
          startDownload();
          break;
        case R.id.button_delete_local:
          startLocalDeletion();
          break;
      default:
          Toast.makeText(this, R.string.youre_doing_it_wrong, Toast.LENGTH_SHORT).show();
      }
    }
    
    private void startRefresh() {
      ReadRemoteFolderOperation refreshOperation = new ReadRemoteFolderOperation(FileUtils.PATH_SEPARATOR);
      refreshOperation.execute(mClient, this, mHandler);
    }
    
    private void startUpload() {
      File upFolder = new File(getCacheDir(), getString(R.string.upload_folder_path));
      File fileToUpload = upFolder.listFiles()[0]; 
      String remotePath = FileUtils.PATH_SEPARATOR + fileToUpload.getName(); 
      String mimeType = getString(R.string.sample_file_mimetype);
      UploadRemoteFileOperation uploadOperation = new UploadRemoteFileOperation(fileToUpload.getAbsolutePath(), remotePath, mimeType);
      uploadOperation.addDatatransferProgressListener(this);
      uploadOperation.execute(mClient, this, mHandler);
    }
    
    private void startRemoteDeletion() {
      File upFolder = new File(getCacheDir(), getString(R.string.upload_folder_path));
      File fileToUpload = upFolder.listFiles()[0]; 
      String remotePath = FileUtils.PATH_SEPARATOR + fileToUpload.getName();
      RemoveRemoteFileOperation removeOperation = new RemoveRemoteFileOperation(remotePath);
      removeOperation.execute(mClient, this, mHandler);
    }
    
    private void startDownload() {
      File downFolder = new File(getCacheDir(), getString(R.string.download_folder_path));
      downFolder.mkdir();
      File upFolder = new File(getCacheDir(), getString(R.string.upload_folder_path));
      File fileToUpload = upFolder.listFiles()[0];
      String remotePath = FileUtils.PATH_SEPARATOR + fileToUpload.getName();
      DownloadRemoteFileOperation downloadOperation = new DownloadRemoteFileOperation(remotePath, downFolder.getAbsolutePath());
      downloadOperation.addDatatransferProgressListener(this);
      downloadOperation.execute(mClient, this, mHandler);
    }
    
    @SuppressWarnings("deprecation")
  private void startLocalDeletion() {
      File downFolder = new File(getCacheDir(), getString(R.string.download_folder_path));
      File downloadedFile = downFolder.listFiles()[0];
      if (!downloadedFile.delete() && downloadedFile.exists()) {
        Toast.makeText(this, R.string.error_deleting_local_file, Toast.LENGTH_SHORT).show();
      } else {
        ((TextView) findViewById(R.id.download_progress)).setText("0%");
        findViewById(R.id.frame).setBackgroundDrawable(null);
      }
    }

  @Override
  public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
    if (!result.isSuccess()) {
      Toast.makeText(this, R.string.todo_operation_finished_in_fail, Toast.LENGTH_SHORT).show();
      Log.e(LOG_TAG, result.getLogMessage(), result.getException());
      
    } else if (operation instanceof ReadRemoteFolderOperation) {
      onSuccessfulRefresh((ReadRemoteFolderOperation)operation, result);
      
    } else if (operation instanceof UploadRemoteFileOperation ) {
      onSuccessfulUpload((UploadRemoteFileOperation)operation, result);
      
    } else if (operation instanceof RemoveRemoteFileOperation ) {
      onSuccessfulRemoteDeletion((RemoveRemoteFileOperation)operation, result);
      
    } else if (operation instanceof DownloadRemoteFileOperation ) {
      onSuccessfulDownload((DownloadRemoteFileOperation)operation, result);
      
    } else {
      Toast.makeText(this, R.string.todo_operation_finished_in_success, Toast.LENGTH_SHORT).show();
    }
  }

  private void onSuccessfulRefresh(ReadRemoteFolderOperation operation, RemoteOperationResult result) {
    mFilesAdapter.clear();
    List<RemoteFile> files = new ArrayList<RemoteFile>();
        for(Object obj: result.getData()) {
            files.add((RemoteFile) obj);
        }
    if (files != null) {
      Iterator<RemoteFile> it = files.iterator();
      while (it.hasNext()) {
        mFilesAdapter.add(it.next());
      }
      mFilesAdapter.remove(mFilesAdapter.getItem(0));
    }
    mFilesAdapter.notifyDataSetChanged();
  }

  private void onSuccessfulUpload(UploadRemoteFileOperation operation, RemoteOperationResult result) {
    startRefresh();
  }

  private void onSuccessfulRemoteDeletion(RemoveRemoteFileOperation operation, RemoteOperationResult result) {
    startRefresh();
    TextView progressView = (TextView) findViewById(R.id.upload_progress);
    if (progressView != null) {
      progressView.setText("0%");
    }
  }

  @SuppressWarnings("deprecation")
  private void onSuccessfulDownload(DownloadRemoteFileOperation operation, RemoteOperationResult result) {
      File downFolder = new File(getCacheDir(), getString(R.string.download_folder_path));
      File downloadedFile = downFolder.listFiles()[0];
      BitmapDrawable bDraw = new BitmapDrawable(getResources(), downloadedFile.getAbsolutePath());
      mFrame.setBackgroundDrawable(bDraw);
  }

  @Override
  public void onTransferProgress(long progressRate, long totalTransferredSoFar, long totalToTransfer, String fileName) {
    final long percentage = (totalToTransfer > 0 ? totalTransferredSoFar * 100 / totalToTransfer : 0);
    final boolean upload = fileName.contains(getString(R.string.upload_folder_path));
    Log.d(LOG_TAG, "progressRate " + percentage);
      mHandler.post(new Runnable() {
            @Override
            public void run() {
        TextView progressView = null;
        if (upload) {
          progressView = (TextView) findViewById(R.id.upload_progress);
        } else {
          progressView = (TextView) findViewById(R.id.download_progress);
        }
        if (progressView != null) {
            progressView.setText(Long.toString(percentage) + "%");
        }
            }
        });
  }

}
Java Source Code List
