Android Open Source - TATupload Parameter View Activity

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License

The source code is released under:
GNU General Public License
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Java Source Code

package uk.org.sucu.tatupload.activity;
/*  w  w  w  . j  ava 2 s .co  m*/
import java.io.IOException;
import java.util.ArrayList;

import uk.org.sucu.tatupload.ParameterArrayAdapter;
import uk.org.sucu.tatupload.R;
import uk.org.sucu.tatupload.Settings;
import uk.org.sucu.tatupload.parse.Parameters;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;

public class ParameterViewActivity extends Activity {

  private ArrayList<String> parameter;
  private ParameterArrayAdapter adapter;
  private String parameterIdentifier;
  
  private AlertDialog dialog;
  private Settings settings;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    
    setContentView(R.layout.activity_parameter_view);
    
    settings = new Settings(this);
    
    Intent intent = getIntent();
    parameterIdentifier = intent.getStringExtra(Parameters.PARAMETER);
    
    TextView tv = (TextView) findViewById(R.id.param_explanation_label);
    tv.setText(Parameters.getParamExplanation(parameterIdentifier, this));
    
    parameter = Parameters.getList(parameterIdentifier);
    if(parameterIdentifier == null) {
      parameterIdentifier = null;
      parameter = new ArrayList<String>();
      parameter.add("This shouldn't appear");
    }
    
    
    ListView paramListView = (ListView) findViewById(R.id.param_list);
    adapter = new ParameterArrayAdapter(this, R.id.param_list, parameter);
    paramListView.setAdapter(adapter);
    
    // Show the Up button in the action bar.
    setupActionBar();
    
  }

  /**
   * Set up the {@link android.app.ActionBar}, if the API is available.
   */
  @TargetApi(Build.VERSION_CODES.HONEYCOMB)
  private void setupActionBar() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
      getActionBar().setDisplayHomeAsUpEnabled(true);
      getActionBar().setTitle(Parameters.getParamHeading(parameterIdentifier, this));
    }
  }
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.parameter_view, menu);
    return true;
  }
  
  public boolean onOptionsItemSelected(MenuItem item){
    int itemId = item.getItemId();
    if(itemId == R.id.restore_default){
      restoreDefaultParameter();
      return true;
    } else{
      return super.onOptionsItemSelected(item);
    }
    
  }

  public void restoreDefaultParameter(){
    ArrayList<String> defaults = Parameters.getDefaultList(parameterIdentifier, this);
    Parameters.loadParameter(parameterIdentifier, defaults);
    saveParameter();
    adapter.notifyDataSetChanged();
  }

  public void openAddDialogue(View v){
    makeAddPopup();
  }
  public void openEditDialogue(View v){
    makeEditPopup();
  }
  public void openRemoveDialogue(View v){
    makeRemovalPopup();
  }

  
  @SuppressLint("DefaultLocale")
  public void addParameter(){
    
    EditText textbox = (EditText) dialog.findViewById(R.id.addParamTextField);
    String param = textbox.getText().toString().toLowerCase();
    
    if(!parameter.contains(param)){
      parameter.add(param);
      saveParameter();
      adapter.notifyDataSetChanged();
    }
  }

  @SuppressLint("DefaultLocale")
  public void editParameter(){
    Spinner spin = (Spinner) dialog.findViewById(R.id.editSpinner);
    String toChange = (String) spin.getSelectedItem();
    EditText textbox = (EditText) dialog.findViewById(R.id.editParamTextField);
    
    int index = parameter.indexOf(toChange);
    if(index != -1){//indexOf returns -1 if the object isn't present
      parameter.set(index, textbox.getText().toString().toLowerCase());
      saveParameter();
      adapter.notifyDataSetChanged();
    }
  }
  
  public void removeParameter(){
    Spinner spin = (Spinner) dialog.findViewById(R.id.removeSpinner);
    String toTake = (String) spin.getSelectedItem();
    parameter.remove(toTake);
    saveParameter();
    adapter.notifyDataSetChanged();
  }
  
  private void saveParameter(){
    if(parameterIdentifier != null){
      try {
        settings.saveParameter(parameterIdentifier);
      } catch (IOException e) {
        Toast.makeText(this, "Unable to save parameter.", Toast.LENGTH_SHORT).show();
      }
    }
  }
  
  @SuppressLint("InflateParams")
  private void makeRemovalPopup(){
    //build the dialog box
    View viewToLoad = LayoutInflater.from(this).inflate(R.layout.remove_param_popup, null);    
    dialog = new AlertDialog.Builder(this)
      .setTitle(R.string.remove_param)
      .setView(viewToLoad)
      .setPositiveButton(R.string.remove_param, new DialogInterface.OnClickListener(){
        @Override
        public void onClick(DialogInterface dialog, int which) {
          removeParameter();
        }
      })
      .setNegativeButton(android.R.string.cancel, null)
      .create();
    //connect the dialogs spinner to the data structure
    Spinner spin = (Spinner) viewToLoad.findViewById(R.id.removeSpinner);
    ParameterArrayAdapter adapter = new ParameterArrayAdapter(this, android.R.layout.simple_spinner_item,parameter);
    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    spin.setAdapter(adapter);
    //display the dialog
    dialog.show();
  }

  @SuppressLint("InflateParams")
  private void makeEditPopup(){
    View viewToLoad = LayoutInflater.from(this).inflate(R.layout.edit_param_popup, null);  
    //build the dialog box
    dialog = new AlertDialog.Builder(this)
      .setTitle(R.string.change_param)
      .setView(viewToLoad)
      .setPositiveButton(R.string.change_param, new DialogInterface.OnClickListener(){
        @Override
        public void onClick(DialogInterface dialog, int which) {
          editParameter();
        }
      })
      .setNegativeButton(android.R.string.cancel, null)
      .create();
    //connect its spinner to the data structure
    Spinner spin = (Spinner) viewToLoad.findViewById(R.id.editSpinner);
    ParameterArrayAdapter adapter = new ParameterArrayAdapter(this, android.R.layout.simple_spinner_item,parameter);
    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    spin.setAdapter(adapter);
    //display the dialog
    dialog.show();
    
  }
  
  @SuppressLint("InflateParams")
  private void makeAddPopup(){
    View viewToLoad = LayoutInflater.from(this).inflate(R.layout.add_param_popup, null);  
    
    dialog = new AlertDialog.Builder(this)
      .setTitle(R.string.add_param)
      .setView(viewToLoad)
      .setPositiveButton(R.string.add_param, new DialogInterface.OnClickListener(){
        @Override
        public void onClick(DialogInterface dialog, int which) {
          addParameter();
        }
      })
      .setNegativeButton(android.R.string.cancel, null)
      .create();
    dialog.show();
    
  }
}
Java Source Code List
