I have an ImageView zoom application ran on my mobile, when I first run it, the image work and the zooming as well, after that, I made a link button to the image view, with the same previous application, the image appears but no zooming for it and it doesn't move at all
Can someone help?
mapslocations.xml
Sites.java
imageview1.xml
PagePowerstation.java
Can someone help?
mapslocations.xml
<Button
android:id="@+id/pslook1"
android:layout_width="fill_parent"
android:layout_height="45dp"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_weight="1"
android:gravity="center"
android:text="Map"
android:textSize="10sp"
android:textStyle="italic" />
Sites.java
package com.f.fa;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.graphics.Matrix;
import android.graphics.PointF;
import android.os.Bundle;
import android.util.FloatMath;
import android.view.MotionEvent;
import android.view.View;
import android.widget.ImageView;
public class Sites extends Activity {
ImageView imageDetail1;
Matrix matrix = new Matrix();
Matrix savedMatrix = new Matrix();
PointF startPoint = new PointF();
PointF midPoint = new PointF();
float oldDist = 1f;
static final int NONE = 0;
static final int DRAG = 1;
static final int ZOOM = 2;
int mode = NONE;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.mapslocations);
imageDetail1 = (ImageView) findViewById(R.id.pslook1);
/**
* set on touch listner on image
*/
imageDetail1.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
ImageView view = (ImageView) v;
System.out.println("matrix=" + savedMatrix.toString());
switch (event.getAction() & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_DOWN:
savedMatrix.set(matrix);
startPoint.set(event.getX(), event.getY());
mode = DRAG;
break;
case MotionEvent.ACTION_POINTER_DOWN:
oldDist = spacing(event);
if (oldDist > 10f) {
savedMatrix.set(matrix);
midPoint(midPoint, event);
mode = ZOOM;
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_POINTER_UP:
mode = NONE;
break;
case MotionEvent.ACTION_MOVE:
if (mode == DRAG) {
matrix.set(savedMatrix);
matrix.postTranslate(event.getX() - startPoint.x,
event.getY() - startPoint.y);
} else if (mode == ZOOM) {
float newDist = spacing(event);
if (newDist > 10f) {
matrix.set(savedMatrix);
float scale = newDist / oldDist;
matrix.postScale(scale, scale, midPoint.x, midPoint.y);
}
}
break;
}
view.setImageMatrix(matrix);
return true;
}
@SuppressLint("FloatMath")
private float spacing(MotionEvent event) {
float x = event.getX(0) - event.getX(1);
float y = event.getY(0) - event.getY(1);
return FloatMath.sqrt(x * x + y * y);
}
private void midPoint(PointF point, MotionEvent event) {
float x = event.getX(0) + event.getX(1);
float y = event.getY(0) + event.getY(1);
point.set(x / 2, y / 2);
}
});
}
}
imageview1.xml
<ImageView
android:id="@+id/pslook1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:scaleType="matrix"
android:src="@drawable/powerstationwallmap" />
PagePowerstation.java
package com.f.fa;
import android.app.Activity;
import android.os.Bundle;
import android.widget.Button;
public class PagePowerstation extends Activity {
Button imageview1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.imageview1);
}
}