Android Open Source - EBrowser Base Spinner Custom Preference Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Zirco Browser for Android//from  www .jav a2 s.com
 * 
 * Copyright (C) 2010 J. Devauchelle and contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 3 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

package org.zirco.ui.activities.preferences;

import com.mrpej.ebrowser.R;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.AdapterView.OnItemSelectedListener;

/**
 * Base class for a dialog activity for a preference which can have several predefined values, and a customizable one.
 */
public abstract class BaseSpinnerCustomPreferenceActivity extends Activity {
  
  protected Spinner mSpinner;
  protected EditText mCustomEditText;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {    
    super.onCreate(savedInstanceState);
    
    Window w = getWindow();
    w.requestFeature(Window.FEATURE_LEFT_ICON);
    
    setContentView(R.layout.base_spinner_custom_preference_activity);
    
    w.setFeatureDrawableResource(Window.FEATURE_LEFT_ICON, android.R.drawable.ic_dialog_map);
    
    mCustomEditText = (EditText) findViewById(R.id.BaseSpinnerCustomPreferenceEditText);
    
    mSpinner = (Spinner) findViewById(R.id.BaseSpinnerCustomPreferenceSpinner);
    
    mSpinner.setPromptId(getSpinnerPromptId());
    
    ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, getSpinnerValuesArrayId(), android.R.layout.simple_spinner_item);
    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);    
    mSpinner.setAdapter(adapter);    
    
    setSpinnerValueFromPreferences();
    
    mSpinner.setOnItemSelectedListener(new OnItemSelectedListener() {

      @Override
      public void onItemSelected(AdapterView<?> arg0, View arg1, int position, long id) {
        onSpinnerItemSelected(position);
      }

      @Override
      public void onNothingSelected(AdapterView<?> arg0) { }
      
    });
    
    Button okBtn = (Button) findViewById(R.id.BaseSpinnerCustomPreferenceOk);
    okBtn.setOnClickListener(new OnClickListener() {
      
      @Override
      public void onClick(View v) {
        onOk();        
        finish();
      }
    });
    
    Button cancelBtn = (Button) findViewById(R.id.BaseSpinnerCustomPreferenceCancel);
    cancelBtn.setOnClickListener(new OnClickListener() {
      
      @Override
      public void onClick(View v) {
        finish();
      }
    });
  }
  
  /**
   * Get the resource id for the prompt of the spinner.
   * @return The resource id.
   */
  protected abstract int getSpinnerPromptId();
  
  /**
   * Get the resource id for the array values of the spinner.
   * @return The array id.
   */
  protected abstract int getSpinnerValuesArrayId();
  
  /**
   * Initialize the spinner with the current value in preferences.
   */
  protected abstract void setSpinnerValueFromPreferences();
  
  /**
   * Behavior when the spinner selected item change.
   * @param position The new selected index.
   */
  protected abstract void onSpinnerItemSelected(int position);
  
  /**
   * Behavior when the user press the Ok button.
   */
  protected abstract void onOk();

}

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