Android to achieve the zoom image flip function
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package com.easyway.andorid.hello;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.graphics.drawable.BitmapDrawable;
import android.os.Bundle;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ImageView.ScaleType;
import android.widget.LinearLayout.LayoutParams;
/**
* Android The zoom feature implemented pictures
* @author longgangbai
* @date 2010-5-24
* @version 1.0
* @since JDK6.0
*/
public class ImageViewAndorid extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// The Setup program's title
setTitle(" Scale and rotate pictures ");
// Instantiate an object of class LinearLayout lly
LinearLayout lly=new LinearLayout(this);
// Gets a picture of the information here is icon.png , The location of the pictures stored in the res/drawable under ,
// At the same time here also has a itfunz.bmp, this is the application's icon
Bitmap bmpOrg=BitmapFactory.decodeResource(getResources(), R.drawable.icon);
// Gets the size of the original picture
int width=bmpOrg.getWidth();
int height=bmpOrg.getHeight();
int newWidth=400;
int newheight=400;
// Define the height and width of the scaled to the size of the
float sw=((float)newWidth)/width;
float sh=((float)newheight)/height;
// Create a picture of the matrix object
Matrix matrix=new Matrix();
matrix.postScale(sw,sh);
// Zoom pictures of action
matrix.postRotate(30);
// Rotation 30*
Bitmap resizeBitmap=Bitmap.createBitmap(bmpOrg,0,0,width,height,matrix,true);
// Create a new picture
BitmapDrawable bmp=new BitmapDrawable(resizeBitmap);
// Create a Bitmap converted to Drawable Object, so that it can be used in ImageView And ImageButton in
ImageView imageView=new ImageView(this);
// Create ImageView object
imageView.setImageDrawable(bmp);
// The picture in the Middle
imageView.setScaleType(ScaleType.CENTER);
// The picture fills the entire view
lly.addView(imageView, new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.FILL_PARENT));
// Add to the layout template ImageView
setContentView(lly);
}
}
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