android – 自定义相对布局缩放？

概述我正在尝试制作可以缩放和滚动的Custom RelativeLayout.现在我试图达到规模.现在我已将自定义相对布局作为另一个相对布局的父布局,其中包含可触摸的 Imageview作为其子项.现在当我缩放父自定义相对布局时,孩子也会变焦,但Imageview的可点击区域会翻译我不知道为什么？当Imageview或布局处于正常位置时,可点击区域位于Imageview上,但一旦布局变焦,可点击区域就 我正在尝试制作可以缩放和滚动的Custom relativeLayout.现在我试图达到规模.现在我已将自定义相对布局作为另一个相对布局的父布局,其中包含可触摸的 ImagevIEw作为其子项.现在当我缩放父自定义相对布局时,孩子也会变焦,但ImagevIEw的可点击区域会翻译我不知道为什么？当ImagevIEw或布局处于正常位置时,可点击区域位于ImagevIEw上,但一旦布局变焦,可点击区域就会移动？我不知道为什么我面临奇怪的位置可点击

这是代码

我的自定义相对层面

public class scaleLayout extends relativeLayout {    private float mScaleFactor=1.0f;      private long lasttouchTime = -1;    public scaleLayout(Context context)    {        super(context);    //  setwillNotDraw(false);    }    public scaleLayout(Context context,AttributeSet attrs) {        super(context,attrs);        //setwillNotDraw(false);        // Todo auto-generated constructor stub    }/*  @OverrIDe     public boolean dispatchtouchEvent(MotionEvent event) {                 return super.dispatchtouchEvent(event);        } */    @OverrIDe    public boolean ontouchEvent(MotionEvent event) {        // Todo auto-generated method stub        return super.ontouchEvent(event);    }    @OverrIDe      public boolean onIntercepttouchEvent(MotionEvent ev) {        if (ev.getAction() == MotionEvent.ACTION_DOWN) {          long thisTime = System.currentTimeMillis();          if (thisTime - lasttouchTime < 250) {            // Double tap              mScaleFactor=1.5f;              invalIDate();            lasttouchTime = -1;          } else {            // Too slow :)            /*  mScaleFactor=1.0f;              invalIDate();*/            lasttouchTime = thisTime;          }        }        return super.onIntercepttouchEvent(ev);      }    @OverrIDe    protected voID dispatchDraw(Canvas canvas) {        // Todo auto-generated method stub            canvas.save(Canvas.MATRIX_SAVE_FLAG);            canvas.scale(mScaleFactor,mScaleFactor);            super.dispatchDraw(canvas);            canvas.restore();    }    @OverrIDe    public VIEwParent invalIDateChildInParent(int[] location,Rect dirty) {        // Todo auto-generated method stub        return super.invalIDateChildInParent(location,dirty);    }    protected voID onLayout(boolean changed,int l,int t,int r,int b)    {        int count = getChildCount();        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)                     );            }        }    }

这是活动

public class LayoutZoomingActivity extends Activity implements OntouchListener {    /** Called when the activity is first created. */    @OverrIDe    public voID onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.main);        ImageVIEw img1 = (ImageVIEw) findVIEwByID(R.ID.imageVIEw1);        img1.setontouchListener(this);        ImageVIEw img2 = (ImageVIEw) findVIEwByID(R.ID.imageVIEw2);        img2.setontouchListener(this);    }    @OverrIDe    public boolean ontouch(VIEw v,MotionEvent event) {        // Todo auto-generated method stub        ImageVIEw iv= (ImageVIEw) v;        v.setVisibility(VIEw.INVISIBLE);        return false;    }

这是xml

<com.layoutzooming.scaleLayout  xmlns:androID="http://schemas.androID.com/apk/res/androID"    androID:layout_wIDth="wrap_content"    androID:layout_height="wrap_content"    > <relativeLayout     androID:layout_wIDth="wrap_content"    androID:layout_height="wrap_content"    androID:background="@drawable/gm01"    >    <TextVIEw        androID:ID="@+ID/textVIEw1"        androID:layout_wIDth="wrap_content"        androID:layout_height="wrap_content"        androID:text="jhkibnkij"        androID:layout_centerInParent="true"        androID:textcolor="#FFFFFF"        androID:textSize="25dp" />    <ImageVIEw        androID:ID="@+ID/imageVIEw1"        androID:layout_wIDth="wrap_content"        androID:layout_height="wrap_content"        androID:layout_below="@+ID/textVIEw1"        androID:layout_marginleft="500dp"        androID:layout_margintop="250dp"        androID:background="#000"        androID:src="@drawable/dih01" />     <ImageVIEw        androID:ID="@+ID/imageVIEw2"        androID:layout_wIDth="wrap_content"        androID:layout_height="wrap_content"        androID:layout_below="@+ID/textVIEw1"        androID:layout_marginleft="350dp"        androID:layout_margintop="250dp"        androID:background="#000"        androID:src="@drawable/dih02" /> </relativeLayout></com.layoutzooming.scaleLayout>

解决方法 一些我如何通过在LayoutZoomingActivity中添加以下代码来解决此问题.

public class LayoutZoomingActivity extends Activity implements OntouchListener {    ImageVIEw img1;     ImageVIEw img2;     /** Called when the activity is first created. */    @OverrIDe    public voID onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.main);        img1 = (ImageVIEw) findVIEwByID(R.ID.imageVIEw1);        img1.setontouchListener(this);        img2 = (ImageVIEw) findVIEwByID(R.ID.imageVIEw2);        img2.setontouchListener(this);    }    @OverrIDe    public boolean ontouch(VIEw v,MotionEvent event) {        // Todo auto-generated method stub        Log.d("b","b");        if(isVIEwContains(img1,(int)event.getX(),(int)event.getY()))      {            img1.setVisibility(VIEw.GONE);      }        if(isVIEwContains(img2,(int)event.getY()))      {            img2.setVisibility(VIEw.GONE);      }        return false;    }    @OverrIDe    public boolean ontouchEvent(MotionEvent event) {        // Todo auto-generated method stub        Log.d("ontouchEvent c","c"+(int)event.getX()+","+(int)event.getY());        if(isVIEwContains(img1,(int)event.getY()))      {            img1.setVisibility(VIEw.GONE);            img1.invalIDate();      }        if(isVIEwContains(img2,(int)(event.getX()/scaleLayout.mScaleFactor),(int)(event.getY()/scaleLayout.mScaleFactor)))        {            img2.setVisibility(VIEw.GONE);            img2.invalIDate();      }        return super.ontouchEvent(event);    }    private boolean isVIEwContains(VIEw vIEw,int rx,int ry) {        int[] l = new int[2];        vIEw.getLocationOnScreen(l);        int x = l[0];        int y = l[1];        int w = vIEw.getWIDth();        int h = vIEw.getHeight();        Log.d("isVIEwContains::"+x+"::"+y+"::"+w+"::"+h,rx+"::"+ry);        if (rx < x || rx > x + w || ry < y || ry > y + h) {            return false;        }        return true;    } }

您可以试试这个并根据您的要求定制.

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