Android Open Source - digital-ocean-swimmer S S H Key Fragment

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License

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

package com.yassirh.digitalocean.ui;
/*from   ww w . j  a va  2s .c o  m*/
import java.util.List;

import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.ListFragment;
import android.support.v4.widget.SwipeRefreshLayout;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.LayoutInflater;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.AbsListView.OnScrollListener;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.ListView;

import com.yassirh.digitalocean.R;
import com.yassirh.digitalocean.model.SSHKey;
import com.yassirh.digitalocean.service.SSHKeyService;

public class SSHKeyFragment extends ListFragment implements Updatable, SwipeRefreshLayout.OnRefreshListener{

    private SSHKeyAdapter sshKeyAdapter;
    private List<SSHKey> sshKeys;
    private SSHKeyService sshKeyService;
  private SSHKey sshKey;
  private SwipeRefreshLayout swipeRefreshLayout;
  private Handler handler = new Handler();
  
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
  }
  
  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
      Bundle savedInstanceState) {
    sshKeyService = new SSHKeyService(getActivity());
    update(this.getActivity());
    View layout = inflater.inflate(R.layout.fragment_ssh_keys, container, false);
    swipeRefreshLayout = (SwipeRefreshLayout) layout.findViewById(R.id.swipe_container);
    swipeRefreshLayout.setOnRefreshListener(this);
    swipeRefreshLayout.setColorSchemeResources(R.color.blue_bright,
                R.color.green_light,
                R.color.orange_light,
                R.color.red_light);
    return layout;
  }
  
  @Override
  public void onViewCreated(View view, Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
    final ListView listView = getListView();
    listView.setOnScrollListener(new OnScrollListener() {
      
      @Override
      public void onScrollStateChanged(AbsListView view, int scrollState) {
      }
      
      @Override
      public void onScroll(AbsListView view, int firstVisibleItem,
          int visibleItemCount, int totalItemCount) {
        boolean enable = false;
            if(listView != null && listView.getChildCount() > 0){
                boolean firstItemVisible = listView.getFirstVisiblePosition() == 0;
                boolean topOfFirstItemVisible = listView.getChildAt(0).getTop() == 0;
                enable = firstItemVisible && topOfFirstItemVisible;
            }
          swipeRefreshLayout.setEnabled(enable);
      }
    });
    registerForContextMenu(listView);
  }

  @Override
  public void update(Context context) {
    sshKeys = sshKeyService.getAllSSHKeys();
    sshKeyAdapter = new SSHKeyAdapter(this.getActivity(), sshKeys);
    setListAdapter(sshKeyAdapter);
  }
  
  @Override
  public void onCreateContextMenu(ContextMenu menu, View v,
      ContextMenuInfo menuInfo) {
    super.onCreateContextMenu(menu, v, menuInfo);
    AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
    sshKey = sshKeyService.findById(info.id);
    MenuInflater inflater = getActivity().getMenuInflater();
    inflater.inflate(R.menu.ssh_key_context, menu);
  }
  
  @Override
  public boolean onContextItemSelected(MenuItem item) {
    if(sshKeyService == null)
      sshKeyService = new SSHKeyService(getActivity());
    AlertDialog.Builder alertDialog = new Builder(getActivity());
    alertDialog.setNegativeButton(R.string.no, new OnClickListener() {
      
      @Override
      public void onClick(DialogInterface dialog, int which) {
        dialog.dismiss();
      }
    });
    switch (item.getItemId()) {
      case R.id.action_edit:
        Bundle args = new Bundle();
            args.putLong("ssh_key_id", sshKey.getId());
            FragmentManager fm = getActivity().getSupportFragmentManager();
        SSHKeyCreateDialogFragment sshKeyCreateDialogFragment = new SSHKeyCreateDialogFragment();
        sshKeyCreateDialogFragment.setArguments(args);
        sshKeyCreateDialogFragment.show(fm, "edit_ssh_key");
        return true;
      case R.id.action_destroy:
        alertDialog.setTitle(getString(R.string.destroy) + " : " + sshKey.getName());
        alertDialog.setMessage(R.string.destroy_ssh_key_alert);
        alertDialog.setPositiveButton(R.string.yes, new OnClickListener() {
          
          @Override
          public void onClick(DialogInterface dialog, int which) {
            sshKeyService.delete(sshKey.getId());
          }
        });
        alertDialog.show();
        return true;
    }
    return super.onContextItemSelected(item);
  }
  
  @Override
  public void onRefresh() {
    sshKeyService.getAllSSHKeysFromAPI(true);
    handler.post(refreshing);
  }
  
  private final Runnable refreshing = new Runnable(){
      public void run(){
          try {
            if(sshKeyService.isRefreshing()){
              handler.postDelayed(this, 1000);   
            }else{
              swipeRefreshLayout.setRefreshing(false);
            }
          }
          catch (Exception e) {
              e.printStackTrace();
          }   
      }
  };
}
Java Source Code List
