Android Open Source - Reddit-Underground Tiny D B

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License

The source code is released under:

This is free and unencumbered software released into the public domain. Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a co...

Java Source Code

/*
 * Copyright 2014 KC Ochibili//from w w  w  .  ja  va2  s .c  o m
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.mikedaguillo.reddit_underground;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Map;

import android.content.Context;
import android.content.SharedPreferences;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.BitmapFactory;
import android.os.Environment;
import android.preference.PreferenceManager;
import android.text.TextUtils;
import android.util.Log;

public class TinyDB {
  Context mContext;
  SharedPreferences preferences;
  String DEFAULT_APP_IMAGEDATA_DIRECTORY;
  File mFolder = null;
  public static String lastImagePath = "";

  public TinyDB(Context appContext) {
    mContext = appContext;
    preferences = PreferenceManager.getDefaultSharedPreferences(mContext);
  }

  public Bitmap getImage(String path) {
    Bitmap theGottenBitmap = null;
    try {
      theGottenBitmap = BitmapFactory.decodeFile(path);
    } catch (Exception e) {
      // TODO: handle exception
    }
    return theGottenBitmap;
  }

  /**
   * Returns the String path of the last image that was saved with this Object
   * <p>
   * 
   */
  public String getSavedImagePath() {
    return lastImagePath;
  }

  /**
   * Returns the String path of the last image that was saved with this
   * tnydbobj
   * <p>
   * 
   * @param String
   *            the theFolder - the folder path dir you want to save it to e.g
   *            "DropBox/WorkImages"
   * @param String
   *            the theImageName - the name you want to assign to the image file e.g
   *            "MeAtlunch.png"
   *            
   */
  public String putImagePNG(String theFolder, String theImageName,
      Bitmap theBitmap) {
    this.DEFAULT_APP_IMAGEDATA_DIRECTORY = theFolder;
    String mFullPath = setupFolderPath(theImageName);
    saveBitmapPNG(mFullPath, theBitmap);
    lastImagePath = mFullPath;
    return mFullPath;
  }
  
  public Boolean putImagePNGwithfullPath(String fullPath, Bitmap theBitmap){
    return saveBitmapPNG(fullPath, theBitmap);
  }

  private String setupFolderPath(String imageName) {
    File sdcard_path = Environment.getExternalStorageDirectory();
    mFolder = new File(sdcard_path, DEFAULT_APP_IMAGEDATA_DIRECTORY);
    if (!mFolder.exists()) {
      if (!mFolder.mkdirs()) {
        Log.e("While creatingsave path",
            "Default Save Path Creation Error");
        // Toast("Default Save Path Creation Error");
      }
    }
    String savePath = mFolder.getPath() + '/' + imageName;
    return savePath;
  }

  private boolean saveBitmapPNG(String strFileName, Bitmap bitmap) {
    if (strFileName == null || bitmap == null)
      return false;
    boolean bSuccess1 = false;
    boolean bSuccess2;
    boolean bSuccess3;
    File saveFile = new File(strFileName);

    if (saveFile.exists()) {
      if (!saveFile.delete())
        return false;
    }

    try {
      bSuccess1 = saveFile.createNewFile();
    } catch (IOException e1) {
      // TODO Auto-generated catch block
      e1.printStackTrace();
    }

    OutputStream out = null;
    try {
      out = new FileOutputStream(saveFile);
      bSuccess2 = bitmap.compress(CompressFormat.PNG, 100, out);
    } catch (Exception e) {
      e.printStackTrace();
      bSuccess2 = false;
    }
    try {
      if (out != null) {
        out.flush();
        out.close();
        bSuccess3 = true;
      } else
        bSuccess3 = false;

    } catch (IOException e) {
      e.printStackTrace();
      bSuccess3 = false;
    } finally {
      if (out != null) {
        try {
          out.close();
        } catch (IOException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        }
      }
    }

    return (bSuccess1 && bSuccess2 && bSuccess3);
  }

  public int getInt(String key) {
    return preferences.getInt(key, 0);
  }
  
  public long getLong(String key) {
    return preferences.getLong(key, 0l);
  }

  public String getString(String key) {
    return preferences.getString(key, "");
  }
  
  public double getDouble(String key) {
    String number = getString(key);
    try {
     double value = Double.parseDouble(number);
     return value;
    }
    catch(NumberFormatException e)
    {
      return 0;
    }
  }

  public void putInt(String key, int value) {
    SharedPreferences.Editor editor = preferences.edit();
    editor.putInt(key, value);
    editor.apply();
  }
  
  public void putLong(String key, long value) {
    SharedPreferences.Editor editor = preferences.edit();
    editor.putLong(key, value);
    editor.apply();
  }
  
  public void putDouble(String key, double value) {
    putString(key, String.valueOf(value));
  }

  public void putString(String key, String value) {

    SharedPreferences.Editor editor = preferences.edit();
    editor.putString(key, value);
    editor.apply();
  }

  public void putList(String key, ArrayList<String> marray) {

    SharedPreferences.Editor editor = preferences.edit();
    String[] mystringlist = marray.toArray(new String[marray.size()]);
    // the comma like character used below is not a comma it is the SINGLE
    // LOW-9 QUOTATION MARK unicode 201A and unicode 2017 they are used for
    // seprating the items in the list
    editor.putString(key, TextUtils.join("?", mystringlist));
    editor.apply();
  }

  public ArrayList<String> getList(String key) {
    // the comma like character used below is not a comma it is the SINGLE
    // LOW-9 QUOTATION MARK unicode 201A and unicode 2017 they are used for
    // seprating the items in the list
    String[] mylist = TextUtils
        .split(preferences.getString(key, ""), "?");
    ArrayList<String> gottenlist = new ArrayList<String>(
        Arrays.asList(mylist));
    return gottenlist;
  }

  public void putListInt(String key, ArrayList<Integer> marray) {
    SharedPreferences.Editor editor = preferences.edit();
    Integer[] mystringlist = marray.toArray(new Integer[marray.size()]);
    // the comma like character used below is not a comma it is the SINGLE
    // LOW-9 QUOTATION MARK unicode 201A and unicode 2017 they are used for
    // seprating the items in the list
    editor.putString(key, TextUtils.join("?", mystringlist));
    editor.apply();
  }
  
  public ArrayList<Integer> getListInt(String key) {
    // the comma like character used below is not a comma it is the SINGLE
    // LOW-9 QUOTATION MARK unicode 201A and unicode 2017 they are used for
    // seprating the items in the list
    String[] mylist = TextUtils
        .split(preferences.getString(key, ""), "?");
    ArrayList<String> gottenlist = new ArrayList<String>(
        Arrays.asList(mylist));
    ArrayList<Integer> gottenlist2 = new ArrayList<Integer>();
    for (int i = 0; i < gottenlist.size(); i++) {
      gottenlist2.add(Integer.parseInt(gottenlist.get(i)));
    }

    return gottenlist2;
  }
  
  public void putListBoolean(String key, ArrayList<Boolean> marray){
    ArrayList<String> origList = new ArrayList<String>();
    for(Boolean b : marray){
      if(b==true){
        origList.add("true");
      }else{
        origList.add("false");
      }
    }
    putList(key, origList);
  }
  
  public ArrayList<Boolean> getListBoolean(String key) {
    ArrayList<String> origList = getList(key);
    ArrayList<Boolean> mBools = new ArrayList<Boolean>();
    for(String b : origList){
      if(b.equals("true")){
        mBools.add(true);
      }else{ 
        mBools.add(false);
      } 
    }
    return mBools;
  }
  
  public void putBoolean(String key, boolean value) {
    SharedPreferences.Editor editor = preferences.edit();
    editor.putBoolean(key, value);
    editor.apply();
  }

  public boolean getBoolean(String key) {
    return preferences.getBoolean(key, false);
  }
  
  public void putFloat(String key, float value) {
    SharedPreferences.Editor editor = preferences.edit();
    editor.putFloat(key, value);
    editor.apply();
  }
  
  public float getFloat(String key) {
    return preferences.getFloat(key, 0f);
  }
  
  public void remove(String key) {
    SharedPreferences.Editor editor = preferences.edit();
    editor.remove(key);
    editor.apply();
  }
  
  public Boolean deleteImage(String path){
    File tobedeletedImage = new File(path);
    Boolean isDeleted = tobedeletedImage.delete();
    return isDeleted;
  }
  
  public void clear() {
    SharedPreferences.Editor editor = preferences.edit();
    editor.clear();
    editor.apply();
  }
  
  public Map<String, ?> getAll() {
    return preferences.getAll();
  }
  
  public void registerOnSharedPreferenceChangeListener(SharedPreferences.OnSharedPreferenceChangeListener listener) {
    preferences.registerOnSharedPreferenceChangeListener(listener);
  }
  
  public void unregisterOnSharedPreferenceChangeListener(SharedPreferences.OnSharedPreferenceChangeListener listener) {
    preferences.unregisterOnSharedPreferenceChangeListener(listener);
  }

}

Java Source Code List

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