Android Open Source - Valybe Pre Activity

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License

The source code is released under:

Apache License

Java Source Code

package com.lybe;
/*w w w .  j a v  a  2  s.  c o m*/
import java.io.File;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import android.os.Bundle;
import android.os.Environment;
import android.os.PowerManager;
import android.os.PowerManager.WakeLock;
import android.view.Window;
import android.view.WindowManager;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;

public class PreActivity extends BaseActivity {

  
  private String cachePath =  Environment.getExternalStorageDirectory().getPath()+"/valybe/cache/";
  private File dir = null;
  private boolean chargeMark;
  private boolean cdMark;//chargeDialogMark

  protected SharedPreferences.Editor editor = null;
  protected SharedPreferences sp = null;
  
  private AlertDialog.Builder chargeDialog;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    
    chargeDialog = new AlertDialog.Builder(this);
    chargeDialog.setTitle(R.string.dialog_charge_title);
    chargeDialog.setPositiveButton(R.string.dialog_yes, new DialogInterface.OnClickListener() {
      @Override
      public void onClick(DialogInterface dialog, int which) {
        exitMark = false;
        handler.postDelayed(thread, delay);
      }
        });
    chargeDialog.setNegativeButton(R.string.dialog_cancel, new DialogInterface.OnClickListener() {
      @Override
      public void onClick(DialogInterface dialog, int which) {
        PreActivity.super.toSettingActivity();
        exitMark = false;
      }        
        });
    CharSequence[] items = {PreActivity.this.getString(R.string.no_remind), };
    boolean [] itemChosen = {cdMark, };
    chargeDialog.setMultiChoiceItems(items, itemChosen, new DialogInterface.OnMultiChoiceClickListener() {
      @Override
      public void onClick(DialogInterface dialog, int which,  boolean isChecked) {
         if (isChecked)  
         {
           cdMark = false;
         } 
         else 
         {  
           cdMark = true;
         }        
        editor.putBoolean("cdMark", cdMark);
        editor.commit();
      }   
        });
    
    chargeMark = getIntent().getBooleanExtra("chargeMark", false);
    //Initiate count, the counter of file/image numbers
    count = getIntent().getIntExtra("count", 1);
    //Get configuration values
    sp = getSharedPreferences("delay",Activity.MODE_PRIVATE);  
        editor = getSharedPreferences("delay",Activity.MODE_PRIVATE).edit();
        delay = sp.getInt("delay", 4000); 
        cdMark = sp.getBoolean("cdMark", true); 
        //Create the root directory
    dir = new File (imgPath);
        if(!dir.exists())
        {
         dir.mkdirs();
        }
        //Update images, get the number of images
        super.num = updateImgForNum();
        //If there is no image in the directory, redirect to help panel.
        if(0 == super.num)
        {
          exitMark=true;
          Intent intent = new Intent(PreActivity.this, HelpActivity.class);
          intent.putExtra("fromPreActivity", true);
          startActivity(intent);
          PreActivity.this.finish();
        }
        //Display images
    showImg();
    
    if(chargeMark)
    {
      if(cdMark)
      {
        chargeDialog.show();
        exitMark = true;
      }
            PowerManager pm = (PowerManager)getSystemService(Context.POWER_SERVICE);
            WakeLock mWakelock = pm.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP |WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON, "SimpleTimer");
            mWakelock.acquire();
            mWakelock.release();

            Window window = getWindow();  
            window.addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);  
            /*
            //Deprecated methods, which would influence the original screen locking if used.
            KeyguardManager keyguardManager = (KeyguardManager)getSystemService(KEYGUARD_SERVICE);
            KeyguardLock keyguardLock = newKeyguardLock(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD );
            keyguardLock.disableKeyguard();   
            */
    }
    //Jump to another activity with delay
    mesIntent.setClass(PreActivity.this,OneActivity.class);
    thread = new Runnable(){ 
         public void run(){ 
           putToIntent();
                 startActivity(mesIntent);
                 PreActivity.this.finish();
                 finish();
         } 
    } ;
    if(!exitMark){
      handler.postDelayed(thread, delay);
    }
    else {
      //to do
    }
  }
  /**
   * updateImg: rename images/files
   */
  /*
  private void updateImg()
  {
    File files[] = dir.listFiles();
    File cache = new File (cachePath);
        cache.mkdirs();
    int i = 1;
    if(files != null)  
    {
      for(File f:files)
          {  
            f.renameTo(new File(cachePath+i+".jpg"));//The path must be an absolute path 2013.4.6
            i++;
          }
      files = cache.listFiles();
      i = 1;
      for(File f:files)
          {  
            f.renameTo(new File(imgPath+i+".jpg"));//The path must be an absolute path 2013.4.6
            f.delete();
            i++;            
          }
      cache.delete();
    }        
    else 
    {
      
    }
  }
  */
  /**
   * updateImgForNum: rename images/files, delete non-image files and images in illegal formats.
   */
  private int updateImgForNum()
  {
    File files[] = dir.listFiles();
    File cache = new File (cachePath);
        cache.mkdirs();
    int i = 1;
    if(files != null)  
    {
      for(File f:files)
          {  
        if(findRegx(f.getName(), ".jpg$") || findRegx(f.getName(), ".png$"))
        {
          f.renameTo(new File(cachePath+i+".jpg"));//The path must be an absolute path 2013.4.6
              i++;
        } 
        else
        {
          f.delete();
        }
          }
      files = cache.listFiles();
      i = 1;
      for(File f:files)
          {  
            f.renameTo(new File(imgPath+i+".jpg"));//The path must be an absolute path 2013.4.6
            f.delete();
            i++;            
          }
      cache.delete();
      return i-1;
    }        
    else 
    {
      return 0;
    }
  }
  /**
   * Find substrings matching the rule of "regEx" in "src".
   */
  public boolean findRegx(String src, String regEx) 
  {
    Pattern pat = Pattern.compile(regEx);
      Matcher matcher = pat.matcher(src);
      if (matcher.find()) 
      {
        return true;
      } 
      else 
      {
        return false;
      }      
  }
}

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