EnhanceActivity.java

package com.jarlen.picturetest;

import com.js.photosdk.enhance.PhotoEnhance;
import com.js.photosdk.utils.FileUtils;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;

public class EnhanceActivity extends Activity
		implements
			OnSeekBarChangeListener,
			OnClickListener
{

	private ImageButton cancelBtn, okBtn;

	private ImageView pictureShow;

	private SeekBar saturationSeekBar, brightnessSeekBar, contrastSeekBar;

	private String imgPath;
	private Bitmap bitmapSrc;

	private PhotoEnhance pe;

	@Override
	protected void onCreate(Bundle savedInstanceState)
	{
		super.onCreate(savedInstanceState);
		setContentView(R.layout.layout_enhance);

		Intent intent = getIntent();

		imgPath = intent.getStringExtra("camera_path");
		bitmapSrc = BitmapFactory.decodeFile(imgPath);

		initView();
		pictureShow.setImageBitmap(bitmapSrc);

	}

	private void initView()
	{
		cancelBtn = (ImageButton) findViewById(R.id.btn_cancel);
		cancelBtn.setOnClickListener(this);
		okBtn = (ImageButton) findViewById(R.id.btn_ok);
		okBtn.setOnClickListener(this);

		pictureShow = (ImageView) findViewById(R.id.enhancePicture);

		saturationSeekBar = (SeekBar) findViewById(R.id.saturation);
		saturationSeekBar.setMax(255);
		saturationSeekBar.setProgress(128);
		saturationSeekBar.setOnSeekBarChangeListener(this);

		brightnessSeekBar = (SeekBar) findViewById(R.id.brightness);
		brightnessSeekBar.setMax(255);
		brightnessSeekBar.setProgress(128);
		brightnessSeekBar.setOnSeekBarChangeListener(this);

		contrastSeekBar = (SeekBar) findViewById(R.id.contrast);
		contrastSeekBar.setMax(255);
		contrastSeekBar.setProgress(128);
		contrastSeekBar.setOnSeekBarChangeListener(this);

		pe = new PhotoEnhance(bitmapSrc);

	}

	private int pregress = 0;
	private Bitmap bit = null;

	@Override
	public void onProgressChanged(SeekBar seekBar, int progress,
			boolean fromUser)
	{

		pregress = progress;
	}

	@Override
	public void onStartTrackingTouch(SeekBar seekBar)
	{
		// TODO Auto-generated method stub

	}

	@Override
	public void onStopTrackingTouch(SeekBar seekBar)
	{
		// TODO Auto-generated method stub

		int type = 0;

		switch (seekBar.getId())
		{
			case R.id.saturation :
				pe.setSaturation(pregress);
				type = pe.Enhance_Saturation;

				break;
			case R.id.brightness :
				pe.setBrightness(pregress);
				type = pe.Enhance_Brightness;

				break;

			case R.id.contrast :
				pe.setContrast(pregress);
				type = pe.Enhance_Contrast;

				break;

			default :
				break;
		}

		bit = pe.handleImage(type);
		pictureShow.setImageBitmap(bit);

	}

	@Override
	public void onClick(View view)
	{
		switch (view.getId())
		{

			case R.id.btn_ok :

				FileUtils.writeImage(bit, imgPath, 100);
				Intent okData = new Intent();
				okData.putExtra("camera_path", imgPath);
				setResult(RESULT_OK, okData);
				recycle();
				this.finish();
				break;

			case R.id.btn_cancel :

				Intent cancelData = new Intent();
				setResult(RESULT_CANCELED, cancelData);
				recycle();
				this.finish();
				break;

			default :
				break;
		}

	}

	private void recycle()
	{
		if (bitmapSrc != null)
		{
			bitmapSrc.recycle();
			bitmapSrc = null;
		}

		if (bit != null)
		{
			bit.recycle();
			bit = null;
		}
	}

}