ZoomImageViewer类型中的方法setBackgroudImage（byte []）不适用于下面的参数（ImageView）是我的ci遵循本教程Zoom image with effect ontouch android
LinearLayout.LayoutParams paramsLO2 = new
LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
// button margins
paramsLO2.setMargins(0, 20, 0, 0);
// button height/width *pixels*
btnLO.setOrientation(LinearLayout.VERTICAL);
btnLO.setBackgroundColor(5); // not working correctly
//buttons
for (i =0;i <reqdata.length;i++)
{
LinearLayout li=new LinearLayout(this);
li.setOrientation(LinearLayout.HORIZONTAL);
final Button b1 = new Button(MainActivity1.this);
final ImageView imageView = new ImageView(MainActivity1.this);
ZoomImageViewer zoom = new ZoomImageViewer(this);
<!---- this line show problem zoom.setBackgroudImage(imageView);----->
setContentView(zoom);
imageView.setScaleType(ImageView.ScaleType.FIT_CENTER);
imageView.setOnTouchListener(this);
// int width = 160;
// int height = 50;
LinearLayout.LayoutParams parms = new
LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
parms.setMargins(0, 2, 0, 0);
imageView.setLayoutParams(parms);
li.addView(b1, paramsLO);
li.addView(imageView);
btnLO.addView(li);
b1.setText(reqdata[i].getSpinnerText());
b1.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
imageView1 = imageView;
Intent pictureActionIntent = new
Intent(MediaStore.ACTION_IMAGE_CAPTURE);
pictureActionIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new
File(SDCARD_ROOT_PATH + SAVE_PATH_IN_SDCARD,IMAGE_CAPTURE_NAME)));
startActivityForResult(pictureActionIntent,CAMERA_PICTURE);
b1.setClickable(false);
}
});
}
final Button b2 = new Button(MainActivity1.this);
b2.setText("Submit");
b2.setWidth(150);
b2.setHeight(50);
b2.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
long visitID = dbConnector.saveVisit();
for (i =0;i <reqdata.length;i++)
{
dbConnector.saveVisitDetail(listByte.get(i),visitID,Long.
valueOf(reqdata[i].getValue()).longValue());
}
Toast.makeText(getBaseContext(),
"Sucessful",Toast.LENGTH_SHORT).show();
Intent intent = new Intent(MainActivity1.this,
Main.class);
startActivity(intent);
finish();
}
});
btnLO.addView(b2, paramsLO2);
btnLO.setGravity(Gravity.CENTER| Gravity.CENTER_HORIZONTAL);
scroll.addView(btnLO);
this.addContentView(scroll, new LayoutParams());
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent
imageReturnedIntent) {
super.onActivityResult(requestCode, resultCode, imageReturnedIntent);
if (imageReturnedIntent.getExtras() != null)
{
// here is the image from camera
yourSelectedImage = (Bitmap)
imageReturnedIntent.getExtras().get("data");
ByteArrayOutputStream outStr = new
ByteArrayOutputStream();
yourSelectedImage.compress(CompressFormat.JPEG, 100, outStr);
blob = outStr.toByteArray();
yourSelectedImage =
BitmapFactory.decodeByteArray(blob, 0, blob.length);
imageView1.setImageBitmap(yourSelectedImage);
listByte.add(blob);
}
}
class MyData1 {
public MyData1( String spinnerText, String value ) {
this.spinnerText = spinnerText;
this.value = value;
}
public String getSpinnerText() {
return spinnerText;
}
public String getValue() {
return value;
}
public String toString() {
return spinnerText;
}
String spinnerText;
String value;
}
public boolean onTouch(View v, MotionEvent event) {
ImageView view = (ImageView) v;
view.setScaleType(ImageView.ScaleType.MATRIX);
float scale;
// Dump touch event to log
dumpEvent(event);
// Handle touch events here...
switch (event.getAction() & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_DOWN: //first finger down only
savedMatrix.set(matrix);
start.set(event.getX(), event.getY());
Log.d(TAG, "mode=DRAG" );
mode = DRAG;
break;
case MotionEvent.ACTION_UP: //first finger lifted
case MotionEvent.ACTION_POINTER_UP: //second finger lifted
mode = NONE;
Log.d(TAG, "mode=NONE" );
break;
case MotionEvent.ACTION_POINTER_DOWN: //second finger down
oldDist = spacing(event);
Log.d(TAG, "oldDist=" + oldDist);
if (oldDist > 5f) {
savedMatrix.set(matrix);
midPoint(mid, event);
mode = ZOOM;
Log.d(TAG, "mode=ZOOM" );
}
break;
case MotionEvent.ACTION_MOVE:
if (mode == DRAG) { //movement of first finger
matrix.set(savedMatrix);
if (view.getLeft() >= -392){
matrix.postTranslate(event.getX() - start.x, event.getY() - start.y);
}
}
else if (mode == ZOOM) { //pinch zooming
float newDist = spacing(event);
Log.d(TAG, "newDist=" + newDist);
if (newDist > 5f) {
matrix.set(savedMatrix);
scale = newDist / oldDist; /*thinking i need to play around
with this value to limit it*/
matrix.postScale(scale, scale, mid.x, mid.y);
}
}
break;
}
// Perform the transformation
view.setImageMatrix(matrix);
return true; // indicate event was handled
}
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);
}
/** Show an event in the LogCat view, for debugging */
private void dumpEvent(MotionEvent event) {
String names[] = { "DOWN" , "UP" , "MOVE" , "CANCEL" , "OUTSIDE" ,
"POINTER_DOWN" , "POINTER_UP" , "7?" , "8?" , "9?" };
StringBuilder sb = new StringBuilder();
int action = event.getAction();
int actionCode = action & MotionEvent.ACTION_MASK;
sb.append("event ACTION_" ).append(names[actionCode]);
if (actionCode == MotionEvent.ACTION_POINTER_DOWN
|| actionCode == MotionEvent.ACTION_POINTER_UP) {
sb.append("(pid " ).append(
action >> MotionEvent.ACTION_POINTER_ID_SHIFT);
sb.append(")" );
}
sb.append("[" );
for (int i = 0; i < event.getPointerCount(); i++) {
sb.append("#" ).append(i);
sb.append("(pid " ).append(event.getPointerId(i));
sb.append(")=" ).append((int) event.getX(i));
sb.append("," ).append((int) event.getY(i));
if (i + 1 < event.getPointerCount())
sb.append(";" );
}
sb.append("]" );
Log.d(TAG, sb.toString());
}
}
答案 0 :(得分：0)
根据您指出的代码，似乎setBackgroundImage需要Bitmap作为输入参数。因此，您可以通过以下方式设置位图：
Bitmap bitmap = ((BitmapDrawable)imageView.getDrawable()).getBitmap();
zoom.setBackgroudImage(bitmap);