ImageManager.java

ImageManager.java

package jundat95.com.cachedata.ultis;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Environment;
import android.util.Log;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;


/**
 * Created by tinhngo on 3/9/18.
 */

public class ImageManager {

    private static final String TAG = ImageManager.class.getSimpleName();

    private String appName = "Test";

    public ImageManager(String appName) {
        this.appName = appName;
    }

    public boolean saveBitmap(String key, Bitmap value) {
        boolean isTrue = false;
        File mediaStorageDir = new File(Environment.getExternalStorageDirectory() + "/Cache/" + appName + "/Image");

        if (!mediaStorageDir.exists())
            mediaStorageDir.mkdirs();

        try {
            OutputStream stream = new FileOutputStream(mediaStorageDir.getPath() + "/" + key + ".png");
            value.compress(Bitmap.CompressFormat.PNG,100, stream);
            stream.flush();
            stream.close();
            isTrue = true;
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return isTrue;
    }

    public Bitmap getBitmap(String key) {
        Bitmap bitmap = null;
        File mediaStorageDir = new File(Environment.getExternalStorageDirectory() + "/Cache/" + appName + "/Image");
        try {
            InputStream stream = new FileInputStream(mediaStorageDir.getPath() + "/" + key + ".png");
            bitmap = BitmapFactory.decodeStream(stream);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        return bitmap;
    }

}