Android Sliding Intercept Instance code parsing _android

Nonsense not to say more, directly to everyone to paste the code, the specific code as follows:

 Package demo.hq.com.fby;
Import Android.content.Context;
Import Android.util.AttributeSet;
Import Android.util.Log;
Import android.view.MotionEvent;
Import Android.widget.LinearLayout;
 /** * Created by huqing on 2016/12/7. * Train of thought: * The external intercept * in the parent layout, onintercepttouchevent first to determine whether to intercept the slide, true to intercept the direct entry into the parent layout of the Ontouch method; False Enter Ontouch method of sub layout/public class
  Myparentview extends LinearLayout {/** * The distance moved by move downward/private int mmove;
  /** * The position of the drop point * * private int ydown;
  /** * Move Point position * * private int ymove;
  /** * A total downward moving distance * * Private int downdistance = 0;
  Public Myparentview (context, AttributeSet attrs) {Super (context, attrs);
  Boolean intercept = false;
  /** * External Intercept, * if it is a downward slide is true, to the control to handle, up false to the child control to handle it * so up the event child control can get the * * @param EV * @return * * @Override public boolean onintercepttouchevent (motionevent ev) {switch (ev.getaction ()) {case Motion Event.ACTION_DOWN:yDown = (int) ev.getY ();
      Break
        Case MotionEvent.ACTION_MOVE:yMove = (int) ev.gety ();
          if (Ymove > Ydown) {intercept = true;
        LOG.D ("Hqq", "intercept ~~~~~~~~~~~~~~~~~~");
          else if (Ymove < Ydown) {intercept = false;
        LOG.D ("Hqq", "Do not intercept ~~~~~~~~~~~~~~~~~~");
      } break;
    Case MotionEvent.ACTION_UP:break;
    //true Intercept, enter the control's Ontouchevent method false: Enter the Ontouchevent boolean returnintercept = intercept of the child control;
    Intercept = false;
  return returnintercept;
    @Override public boolean ontouchevent (Motionevent event) {log.e ("HQ", "Father Ontouch");
    int y = (int) event.gety ();
        Switch (event.getaction ()) {case MotionEvent.ACTION_DOWN:yDown = y;
      Break
          Case MotionEvent.ACTION_MOVE:if (downdistance>=250) {}else {ymove = y; if (Ymove-ydown > 0) {mmove = Ymove-ydoWn
            Downdistance + = Mmove;
            if (downdistance>=250) {layout (GetLeft (), Downdistance, GetRight (), getheight () + downdistance);
            }else {layout (GetLeft (), GetTop () + Mmove, GetRight (), Getbottom () + mmove);
      }} break;
        Case MotionEvent.ACTION_UP:layout (GetLeft (), GetTop ()-Downdistance, GetRight (), Getbottom ()-downdistance);
        downdistance = 0;
    Break
  Return to true;//return Super.ontouchevent (event);
 }
}

 package demo.hq.com.fby; import android.content.Context; import
Android.util.AttributeSet;
Import Android.util.Log;
Import android.view.MotionEvent;
Import Android.widget.ScrollView;
 /** * Created by huqing on 2016/12/7. * * public class Myscrollview extends ScrollView {public Myscrollview (context, AttributeSet attrs) {Super
  (context, attrs);
    @Override public boolean ontouchevent (motionevent ev) {LOG.E ("HQ", "Child Ontouch----------------"); 
        Switch (ev.getaction ()) {case MotionEvent.ACTION_DOWN:getParent (). Requestdisallowintercepttouchevent (True);
      Break Case MotionEvent.ACTION_MOVE:if (getscrolly () ==0) {//scrollview allows the parent control to intercept GetParent () if the sliding height does not change without sliding. req
        Uestdisallowintercepttouchevent (FALSE);
        }else {//Prohibit interception of GetParent (). Requestdisallowintercepttouchevent (True);
    } break;
  return super.ontouchevent (EV); }
}

<?xml version= "1.0" encoding= "Utf-8"?> <relativelayout android:id= "@+id/activity_main" xmlns:android= "http ://schemas.android.com/apk/res/android "xmlns:tools=" Http://schemas.android.com/tools "android:layout_width=" Match_parent "android:layout_height=" match_parent "android:background=" @drawable/bg "tools:context=" Demo.hq.com.fby.MainActivity "> <demo.hq.com.fby.myparentview android:layout_width=" match_parent "android:l
      ayout_height= "Wrap_content" android:background= "#ffffff" android:orientation= "vertical" > <textview Android:layout_width= "Wrap_content" android:layout_height= "100DP" android:text= "world!" /> <textview android:layout_width= "wrap_content" android:layout_height= "100DP" android:text= " world! " /> <demo.hq.com.fby.myscrollview android:layout_width= "match_parent" android:layout_height= "W" Rap_content "> <linearlayout android:layout_width=" MatCh_parent "android:layout_height=" wrap_content "android:orientation=" vertical "> <t Extview android:layout_width= "wrap_content" android:layout_height= "200DP" android:text= "Hell" o world! "
          /> <textview android:layout_width= "wrap_content" android:layout_height= "200DP" android:text= "Hello world!" /> </LinearLayout> </demo.hq.com.fby.MyScrollView> </demo.hq.com.fby.MyParentView> </r Elativelayout>

The above is a small set to introduce the Android sliding intercept example code analysis, I hope to help you, if you have any questions please give me a message, small series will promptly reply to everyone. Here also thank you very much for the cloud Habitat Community website support!