Get Bitmap From Name : Bitmap « 2D Graphics « Android

1. Android
2. 2D Graphics
3. Bitmap

Get Bitmap From Name

    
//package edu.dhbw.andobjviewer.util;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import android.content.res.AssetManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
 abstract class BaseFileUtil {
  
  protected String baseFolder = null;

  /* (non-Javadoc)
   * @see edu.dhbw.andobjviewer.util.FileUtilInterface#getBaseFolder()
   */
  public String getBaseFolder() {
    return baseFolder;
  }

  /* (non-Javadoc)
   * @see edu.dhbw.andobjviewer.util.FileUtilInterface#setBaseFolder(java.io.File)
   */
  public void setBaseFolder(String baseFolder) {
    this.baseFolder = baseFolder;
  }

  /**
   * get an reader through it's filename
   * @param name
   * @return may be null, in case of an exception 
   */
  public abstract BufferedReader getReaderFromName(String name);

  /**
   * get a bitmap object through an filename.
   * @param name
   * @return may be null, in case of an exception 
   */
  public abstract Bitmap getBitmapFromName(String name);

}
public class AssetsFileUtil extends BaseFileUtil {
  
  private AssetManager am;
  
  public AssetsFileUtil(AssetManager am) {
    this.am = am;
  }

  @Override
  public Bitmap getBitmapFromName(String name) {
    InputStream is = getInputStreamFromName(name);
    return (is==null)?null:BitmapFactory.decodeStream(is);
  }

  @Override
  public BufferedReader getReaderFromName(String name) {
    InputStream is = getInputStreamFromName(name);
    return (is==null)?null:new BufferedReader(new InputStreamReader(is));
  }
  
  private InputStream getInputStreamFromName(String name) {
    InputStream is;
    if(baseFolder != null) {
      try {
        is = am.open(baseFolder+name);
      } catch (IOException e) {
        e.printStackTrace();
        return null;
      }
    } else {
      try {
        is = am.open(name);
      } catch (IOException e) {
        e.printStackTrace();
        return null;
      }
    }
    return is;
  }

}

   
    
    
    
  

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