Android Open Source - ImageSearcher2 Search Settings Activity

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Back to project page ImageSearcher2.

License

The source code is released under:

Apache License

Java Source Code

package com.example.imagesearcher;
//  w w  w .j a v a 2 s  .com
import java.util.Locale;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.RadioGroup;
import android.widget.Spinner;
import android.widget.Toast;
import android.widget.ToggleButton;

public class SearchSettingsActivity extends Activity implements OnItemSelectedListener 
{
  private SearchSettings searchSettings;
  private EditText editSiteUrl;
  private Spinner spinColorFilter;
  private RadioGroup toggleSizeGroup;
  private RadioGroup toggleTypeGroup;
    
  @Override
  protected void onCreate(final Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_search_settings);
    
    final Intent i = getIntent();
    searchSettings = (SearchSettings)i.getSerializableExtra(ImageGridActivity.SEARCH_SETTINGS_KEY);

    //
    // set the settings into the view
    //
    bindView();
  }
  
  /**
   * bind the data and listeners to the view
   */
  private void bindView()
  {
    // select the toggle button that matches the size setting
    toggleSizeGroup = (RadioGroup)findViewById(R.id.toggleSizeGroup);
    checkToggleSetting(toggleSizeGroup, searchSettings.imageSize());

    // select the toggle button that matches the size setting
    toggleTypeGroup = (RadioGroup)findViewById(R.id.toggleTypeGroup);
    checkToggleSetting(toggleTypeGroup, searchSettings.imageType());

    //
    // setup the colors spinner.
    // 1. get the spinner view
    // 2. Create an ArrayAdapter using the string array and a default spinner layout
    // 3. Specify the layout to use when the list of choices appears
    // 4. Apply the adapter to the spinner
    //
    spinColorFilter = (Spinner) findViewById(R.id.spinColorFilter);         // 1
    final ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,
            R.array.image_colors, R.layout.text_view_right_aligned);       // 2
    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); // 3
    spinColorFilter.setAdapter(adapter);
    spinColorFilter.setOnItemSelectedListener(this);// 4
    
    // set color selection
    @SuppressWarnings("rawtypes")
    final ArrayAdapter theArrayAdapter = (ArrayAdapter) spinColorFilter.getAdapter();
    @SuppressWarnings("unchecked")
    final int thePosition = theArrayAdapter.getPosition(searchSettings.imageColor());
    spinColorFilter.setSelection((thePosition > 0) ? thePosition : 0);
    

    //
    // setup site url text edit
    //
    editSiteUrl = (EditText)findViewById(R.id.editSiteFilter);
    if(null != searchSettings.siteUrl())
    {
      editSiteUrl.setText(searchSettings.siteUrl());
    }
    editSiteUrl.addTextChangedListener(new TextWatcher()
    {
      @Override
      public final void afterTextChanged(final Editable s)
      {
        searchSettings.siteUrl(s.toString());
      }

      @Override
      public void beforeTextChanged(CharSequence s, int start, int count, int after)
      {
        // do nothing
      }

      @Override
      public void onTextChanged(CharSequence s, int start, int before, int count)
      {
        // do nothing
      }
      
    });
  }
  
  private void checkToggleSetting(final RadioGroup theRadioGroup, final String theSetting)
  {
    for(int i = 0; i < theRadioGroup.getChildCount(); i += 1)
    {
      final ToggleButton theView = (ToggleButton)theRadioGroup.getChildAt(i);
      theView.setChecked((null != theSetting) && theSetting.equals(theView.getTag()));
    }
  }


//  @Override
//  public boolean onCreateOptionsMenu(final Menu menu)
//  {
//    // Inflate the menu; this adds items to the action bar if it is present.
//    getMenuInflater().inflate(R.menu.search_settings, menu);
//    return true;
//  }

  /**
   * Called when a size button is toggled.
   * 
   * @param theView
   */
  public void onToggleSize(final View theView)
  {
    searchSettings.imageSize(toggleSetting(theView));
  }
  
  public void onToggleType(final View theView)
  {
    searchSettings.imageType(toggleSetting(theView));
  }
  
  private String toggleSetting(final View theView)
  {
    // update the settings
    final ToggleButton theToggledButton = (ToggleButton)theView;
    final RadioGroup theRadioGroup = (RadioGroup)theToggledButton.getParent();
    final String theSettingValue = 
        theToggledButton.isChecked() 
          ? theToggledButton.getTag().toString() 
          : null;
    
    // DEBUG: show a toast to show the change
    Toast.makeText(
        this, 
        "Toggled {button} is {onOff}"
          .replace("{button}", theToggledButton.getTag().toString())
          .replace("{onOff}", theToggledButton.isChecked() ? "on" : "Off"), 
        Toast.LENGTH_SHORT).show();
    
    //
    // make sure others get pushed up
    //
    final int theButtonCount = theRadioGroup.getChildCount();
    for (int j = 0; j < theButtonCount; j += 1)
    {
      final ToggleButton theOtherButton = (ToggleButton) theRadioGroup.getChildAt(j);
      if(theOtherButton != theToggledButton)
      {
        theOtherButton.setChecked(false);
      }
    }
    
    return theSettingValue;
  }

    public void onItemSelected(final AdapterView<?> parent, final View view, final int pos, final long id) 
    {
      if(parent.getId() == R.id.spinColorFilter)
      {
            // An item was selected. You can retrieve the selected item using
            // parent.getItemAtPosition(pos)
        if(pos > 0)  
        {
          final String theSettingValue = parent.getItemAtPosition(pos).toString();
          
          searchSettings.imageColor(theSettingValue.toLowerCase(Locale.US));
        }
        else  // position 0 is no filtering
        {
            searchSettings.imageColor(null);
        }
      }
    }

    public void onNothingSelected(AdapterView<?> parent) 
    {
      if(parent.getId() == R.id.spinColorFilter)
      {
        searchSettings.imageColor(null);
      }
    }
    
    public void onSaveButton(View theView)
    {
      // send updated settings back to caller.
    Intent data = new Intent();
    data.putExtra(ImageGridActivity.SEARCH_SETTINGS_KEY, searchSettings);
    setResult(RESULT_OK, data); // set result code and bundle data for response
    finish(); // closes the activity, pass data to parent
    }

}

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