BookpageActivity.java

package hong.specialEffects.ui;

import hong.specialEffects.R;
import hong.specialEffects.wight.BookPageFactory;
import hong.specialEffects.wight.BookPageWidget;
import hong.specialEffects.wight.FileUtils;

import java.io.IOException;

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Toast;

public class BookpageActivity extends Activity {
	/** Called when the activity is first created. */
	private BookPageWidget mPageWidget;
	//��ǰҳ����һҳͼ��
	Bitmap mCurPageBitmap, mNextPageBitmap;
	Canvas mCurPageCanvas, mNextPageCanvas;
	BookPageFactory pagefactory;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		FileUtils fileUtils=new FileUtils();
		String text=getResources().getString(R.string.text);
		fileUtils.write2SDFromInput("", "test.txt", text);
		//ȥ������
		requestWindowFeature(Window.FEATURE_NO_TITLE);
		getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
				WindowManager.LayoutParams.FLAG_FULLSCREEN);
		mPageWidget = new BookPageWidget(this);
		setContentView(mPageWidget);

		mCurPageBitmap = Bitmap.createBitmap(480, 800, Bitmap.Config.ARGB_8888);
		mNextPageBitmap = Bitmap.createBitmap(480, 800, Bitmap.Config.ARGB_8888);
		mCurPageCanvas = new Canvas(mCurPageBitmap);
		mNextPageCanvas = new Canvas(mNextPageBitmap);
		pagefactory = new BookPageFactory(480, 800);
		pagefactory.setBgBitmap(BitmapFactory.decodeResource(this.getResources(), R.drawable.bg));

		try {
			pagefactory.openbook("/sdcard/test.txt");
			pagefactory.onDraw(mCurPageCanvas);
		} catch (IOException e1) {
			e1.printStackTrace();
			Toast.makeText(this, "�����鲻����,�뽫��test.txt������SD����Ŀ¼��",
					Toast.LENGTH_SHORT).show();
		}

		mPageWidget.setBitmaps(mCurPageBitmap, mCurPageBitmap);
		mPageWidget.setOnTouchListener(new OnTouchListener() {
			@Override
			public boolean onTouch(View v, MotionEvent e) {
				boolean ret=false;
				if (v == mPageWidget) {
					if (e.getAction() == MotionEvent.ACTION_DOWN) {
						mPageWidget.abortAnimation();
						mPageWidget.calcCornerXY(e.getX(), e.getY());

						pagefactory.onDraw(mCurPageCanvas);
						if (mPageWidget.DragToRight()) {
							try {
								pagefactory.prePage();
							} catch (IOException e1) {
								e1.printStackTrace();
							}						
							if(pagefactory.isfirstPage()) return false;
							pagefactory.onDraw(mNextPageCanvas);
						} else {
							try {
								pagefactory.nextPage();
							} catch (IOException e1) {
								e1.printStackTrace();
							}
							if(pagefactory.islastPage()) return false;
							pagefactory.onDraw(mNextPageCanvas);
						}
						mPageWidget.setBitmaps(mCurPageBitmap, mNextPageBitmap);
					}
					ret = mPageWidget.doTouchEvent(e);
					return ret;
				}
				return false;
			}

		});
	}
}