变焦和捏的RelativeLayout [英] Zoom and Pinch RelativeLayout
问题描述
我是新android开发，对不起，如果我问一些愚蠢的问题，请尝试帮助我。我想实现的RelativeLayout缩放和捏。我想使自己的地图视图中，我会得到层地图的形象，并在其上绘制销（ImageView的）。我已经试过了，但我现在无法点击上的插针。我已经做了code。与这些职位的帮助
I am new to android development, sorry if I ask some stupid question please try to help me. I am trying to implement the Zoom and pinch in RelativeLayout. I want to make my own map view in which I'll get the image of floor map and draw the pins(ImageVIew) on it. I've tried it out but i am currently unable to click on the pins. I've done the code with the help of these posts
<一个href=\"http://stackoverflow.com/questions/6378904/extending-relativelayout-and-overriding-dispatchdraw-to-create-a-zoomable-vie\">Extending RelativeLayout的，并覆盖dispatchDraw（）来创建一个可缩放的ViewGroup
和
<一个href=\"http://stackoverflow.com/questions/10013906/android-zoom-in-out-relativelayout-with-s$p$pad-pinch\">Android - 放大/缩小RelativeLayout的带S $ P $垫/捏
我的code是
public class TempView extends RelativeLayout {
private static final int INVALID_POINTER_ID = -1;
private Drawable mIcon;
private float mPosX;
private float mPosY;
TempView temp;
private float mLastTouchX;
private float mLastTouchY;
private int mActivePointerId = INVALID_POINTER_ID;
private ScaleGestureDetector mScaleDetector;
private float mScaleFactor = 1.f;
public TempView(Context context) {
this(context, null, 0);
temp = this;
}
public TempView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
temp = this;
}
public TempView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
mIcon = context.getResources().getDrawable(R.drawable.ic_launcher);
mIcon.setBounds(0, 0, mIcon.getIntrinsicWidth(), mIcon.getIntrinsicHeight());
temp = this;
mScaleDetector = new ScaleGestureDetector(context, new ScaleListener());
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
// Let the ScaleGestureDetector inspect all events.
mScaleDetector.onTouchEvent(ev);
final int action = ev.getAction();
switch (action & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_DOWN: {
final float x = ev.getX();
final float y = ev.getY();
mLastTouchX = x;
mLastTouchY = y;
mActivePointerId = ev.getPointerId(0);
break;
}
case MotionEvent.ACTION_MOVE: {
final int pointerIndex = ev.findPointerIndex(mActivePointerId);
final float x = ev.getX(pointerIndex);
final float y = ev.getY(pointerIndex);
// Only move if the ScaleGestureDetector isn't processing a gesture.
if (!mScaleDetector.isInProgress()) {
final float dx = x - mLastTouchX;
final float dy = y - mLastTouchY;
mPosX += dx;
mPosY += dy;
invalidate();
}
mLastTouchX = x;
mLastTouchY = y;
break;
}
case MotionEvent.ACTION_UP: {
mActivePointerId = INVALID_POINTER_ID;
break;
}
case MotionEvent.ACTION_CANCEL: {
mActivePointerId = INVALID_POINTER_ID;
break;
}
case MotionEvent.ACTION_POINTER_UP: {
final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK)
>> MotionEvent.ACTION_POINTER_INDEX_SHIFT;
final int pointerId = ev.getPointerId(pointerIndex);
if (pointerId == mActivePointerId) {
// This was our active pointer going up. Choose a new
// active pointer and adjust accordingly.
final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
mLastTouchX = ev.getX(newPointerIndex);
mLastTouchY = ev.getY(newPointerIndex);
mActivePointerId = ev.getPointerId(newPointerIndex);
}
break;
}
}
return true;
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b)
{
int count = getChildCount();
Log.d("onLayout", ""+count);
for(int i=0;i<count;i++){
View child = getChildAt(i);
if(child.getVisibility()!=GONE ){
RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams)child.getLayoutParams();
child.layout(
(int)(params.leftMargin * mScaleFactor),
(int)(params.topMargin * mScaleFactor),
(int)((params.leftMargin + child.getMeasuredWidth()) * mScaleFactor),
(int)((params.topMargin + child.getMeasuredHeight()) * mScaleFactor)
);
child.setLayoutParams(params);
}
}
}
@Override
public void onDraw(Canvas canvas) {
super.onDraw(canvas);
canvas.save(Canvas.MATRIX_SAVE_FLAG);
canvas.translate(mPosX, mPosY);
canvas.scale(mScaleFactor, mScaleFactor);
Log.d("onDraw", ""+mScaleFactor);
int count = getChildCount();
for(int i=0;i<count;i++){
View child = getChildAt(i);
if(child.getVisibility()!=GONE){
child.draw(canvas);
Log.d("onDraw", ""+mScaleFactor);
}
}
canvas.restore();
}
@Override
protected void dispatchDraw(Canvas canvas) {
canvas.save(Canvas.MATRIX_SAVE_FLAG);
canvas.translate(mPosX, mPosY);
canvas.scale(mScaleFactor, mScaleFactor);
super.dispatchDraw(canvas);
canvas.restore();
}
private class ScaleListener extends ScaleGestureDetector.SimpleOnScaleGestureListener {
@Override
public boolean onScale(ScaleGestureDetector detector) {
mScaleFactor *= detector.getScaleFactor();
// Don't let the object get too small or too large.
mScaleFactor = Math.max(1.0f, Math.min(mScaleFactor, 5.0f));
// Log.d("onScale", ""+mScaleFactor);
temp.invalidate();
invalidate();
return true;
}
}
}
问题：
- 如何使只有楼层地图图片放大？
- 保持销非变，但相对运动？
- 一个引脚上点击时得到准确的Click事件
任何建议和解答会很大大appriciated！
Any Suggestions and Answers will be very much appriciated!
在预先感谢
卡马尔
推荐答案
在Android查看HTML地图像元素的实现：
An implementation of an HTML map like element in an Android View:
- 支持布局图像，绘制或位图
- 允许区域标记的XML列表
- 允许使用剪切和粘贴HTML标签面积以资源XML（即取一个HTML地图的能力 - 以及图像和用最少的编辑使用它）
- 支持平移如果图像是比手机屏幕更大
- 支持双指缩放
- 支持回调，当一个区域被窃听。
- 支持显示注释作为泡沫文本，并提供回调如果泡沫被窃听
看到这个链接，你将有你的解决方案 https://github.com/catchthecows/AndroidImageMap
see this link you will got your solution https://github.com/catchthecows/AndroidImageMap
这篇关于变焦和捏的RelativeLayout的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
