Develop Reference

PageAdapter + VerticalViewPager NOT working Together. Why?

I'm trying to figure out why my images within class CustomPagerAdapter mResources are NOT showing up once the VerticalViewPager widget appears -- nothing on start and nothing during vertical swipe.
I've been at it for a couple days but just cant crack it. Doesnt help the documentation on ViewPager / Adapters isnt very clear.
Using - Nexus 6 AVD, minSdkVersion = 19
When i attempt to scroll up (single click from the bottom and swipe up all the way to the top) i then receive this error message...
*AndroidRuntime: FATAL EXCEPTION: main
Process: sparktic.com.verticalviewpager, PID: 19242
java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
at android.view.ViewGroup.addViewInner(ViewGroup.java:3562)*
AFAIK i'm adding and removing pager_item correctly.
java/ MainActivity.java
package sparktic.com.verticalviewpager;
import android.content.Context;
import android.support.v4.view.PagerAdapter;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
public class MainActivity extends AppCompatActivity
{
VerticalViewPager mPager;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mPager = findViewById(R.id.viewpager);
CustomPagerAdapter adapter = new CustomPagerAdapter(this);
mPager.setAdapter(adapter);
}
class CustomPagerAdapter extends PagerAdapter
{
Context mContext;
public LayoutInflater mLayoutInflater;
int[] mResources = {
R.drawable.first, // Dload: https://i.imgur.com/suvAa9x.jpg
R.drawable.second, // Dload: https://i.imgur.com/c2f0Hvy.jpg
R.drawable.third // Dload: https://i.imgur.com/0GAs8qp.jpg
};
public CustomPagerAdapter(Context context)
{
mContext = context;
mLayoutInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
#Override
public int getCount()
{
return mResources.length;
}
#Override
public boolean isViewFromObject(View view, Object object)
{
return view == ((LinearLayout) object);
}
#Override
public Object instantiateItem(ViewGroup container, int position)
{
View itemView = mLayoutInflater.inflate(R.layout.pager_item, container, false);
ImageView imageView = (ImageView) itemView.findViewById(R.id.imageView);
imageView.setImageResource(mResources[position]);
container.addView(imageView);
return itemView;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object)
{
container.removeView((LinearLayout) object);
}
}
}
layout/ activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
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"
tools:context="sparktic.com.verticalviewpager.MainActivity">
<sparktic.com.verticalviewpager.VerticalViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
layout/ pager_item.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/imageView" />
</LinearLayout>
java/ VerticalViewPager.java
package sparktic.com.verticalviewpager;
import android.content.Context;
import android.support.v4.view.ViewPager;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
public class VerticalViewPager extends ViewPager
{
public VerticalViewPager(Context context)
{
this(context, null);
}
public VerticalViewPager(Context context, AttributeSet attrs)
{
super(context, attrs);
init();
}
#Override
public boolean canScrollHorizontally(int direction)
{
return false;
}
#Override
public boolean canScrollVertically(int direction)
{
return super.canScrollHorizontally(direction);
}
private void init()
{
setPageTransformer(true, new VerticalPageTransformer());
setOverScrollMode(View.OVER_SCROLL_NEVER);
}
#Override
public boolean onInterceptTouchEvent(MotionEvent ev)
{
final boolean toIntercept = super.onInterceptTouchEvent(flipXY(ev));
flipXY(ev);
return toIntercept;
}
#Override
public boolean onTouchEvent(MotionEvent ev)
{
final boolean toHandle = super.onTouchEvent(flipXY(ev));
flipXY(ev);
return toHandle;
}
private MotionEvent flipXY(MotionEvent ev)
{
final float width = getWidth();
final float height = getHeight();
final float x = (ev.getY() / height) * width;
final float y = (ev.getX() / width) * height;
ev.setLocation(x, y);
return ev;
}
private static final class VerticalPageTransformer implements ViewPager.PageTransformer
{
#Override
public void transformPage(View view, float position)
{
final int pageWidth = view.getWidth();
final int pageHeight = view.getHeight();
if (position < -1)
{
view.setAlpha(0);
}
else if (position <= 1)
{
view.setAlpha(1);
view.setTranslationX(pageWidth * -position);
float yPosition = position * pageHeight;
view.setTranslationY(yPosition);
}
else
{
view.setAlpha(0);
}
}
}
}

Solved my own problem. In case it helps someone else...
the issue was within "instantiateItem" method.
container.addView(imageView); should have been container.addView(itemView);
I still dont have a solid grasp as to what is happening within the PageAdapter overrides but it works so i'll take the win and move on.

I want to implement interface like "Google Duo" using Vertical Fragments in android

I want to Implement Interface in which the Screen is divided into two halves vertically and the lower half is partially visible, using Fragments just like in Google Duo application.
I am trying to achieve this thing using Fragment, some how I got succeeded to some extent but the problem is that fragments are not fluid in movement and the second fragment is not partially visible. Here is a piece of code
VertcialViewPager.Java
package com.example.deepdepindersingh.adore.ui;
import android.content.Context;
import android.support.v4.view.ViewPager;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
/**
* Created by Deep Depinder Singh on 10/16/2016.
*/
public class VerticalViewPager extends ViewPager {
public VerticalViewPager(Context context) {
super(context);
init();
}
public VerticalViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
private void init() {
// The majority of the magic happens here
setPageTransformer(true, new VerticalPageTransformer());
// The easiest way to get rid of the overscroll drawing that happens on the left and right
setOverScrollMode(OVER_SCROLL_NEVER);
}
private class VerticalPageTransformer implements ViewPager.PageTransformer {
#Override
public void transformPage(View view, float position) {
if (position < -1) { // [-Infinity,-1)
// This page is way off-screen to the left.
view.setAlpha(0);
} else if (position <= 1) { // [-1,1]
view.setAlpha(1);
// Counteract the default slide transition
view.setTranslationX(view.getWidth() * -position);
//set Y position to swipe in from top
float yPosition = position * view.getHeight();
view.setTranslationY(yPosition);
} else { // (1,+Infinity]
// This page is way off-screen to the right.
view.setAlpha(0);
}
}
}
/**
* Swaps the X and Y coordinates of your touch event.
*/
private MotionEvent swapXY(MotionEvent ev) {
float width = getWidth();
float height = getHeight();
float newX = (ev.getY() / height) * width;
float newY = (ev.getX() / width) * height;
ev.setLocation(newX, newY);
return ev;
}
#Override
public boolean onInterceptTouchEvent(MotionEvent ev){
boolean intercepted = super.onInterceptTouchEvent(swapXY(ev));
swapXY(ev); // return touch coordinates to original reference frame for any child views
return intercepted;
}
#Override
public boolean onTouchEvent(MotionEvent ev) {
return super.onTouchEvent(swapXY(ev));
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
boolean wrapHeight = MeasureSpec.getMode(heightMeasureSpec)
== MeasureSpec.AT_MOST;
if(wrapHeight) {
/**
* The first super.onMeasure call made the pager take up all the
* available height. Since we really wanted to wrap it, we need
* to remeasure it. Luckily, after that call the first child is
* now available. So, we take the height from it.
*/
int width = getMeasuredWidth(), height = getMeasuredHeight();
// Use the previously measured width but simplify the calculations
widthMeasureSpec = MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY);
/* If the pager actually has any children, take the first child's
* height and call that our own */
if(getChildCount() > 0) {
View firstChild = getChildAt(0);
/* The child was previously measured with exactly the full height.
* Allow it to wrap this time around. */
firstChild.measure(widthMeasureSpec,
MeasureSpec.makeMeasureSpec(height, MeasureSpec.AT_MOST));
height = firstChild.getMeasuredHeight();
}
heightMeasureSpec = MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY);
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
}
MainActivity.java
package com.example.deepdepindersingh.adore.ui.userinterface;
import android.Manifest;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.location.Location;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.design.widget.FloatingActionButton;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ProgressBar;
import android.widget.TextView;
import com.example.deepdepindersingh.adore.ui.R;
import com.example.deepdepindersingh.adore.ui.userinterface.fragments.ListActivityFragment;
import com.example.deepdepindersingh.adore.ui.userinterface.fragments.MapActivityFragment;
import com.example.deepdepindersingh.adore.ui.userinterface.login.LoginActivity;
import com.example.deepdepindersingh.adore.ui.utils.Constants;
import java.util.HashMap;
public class MainActivity extends BaseActivity implements com.google.android.gms.location.LocationListener{
protected static final String TAG = MainActivity.class.getSimpleName();
private FragmentPagerAdapter adapterViewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Intent intent = new Intent(this, LoginActivity.class);
// startActivity(intent);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
VerticalViewPager viewPager = (VerticalViewPager) findViewById(R.id.pager);
viewPager.setOffscreenPageLimit(2);
viewPager.setClipChildren(false);
//viewPager.setPageMargin(getResources().getDimensionPixelOffset(R.dimen.viewpager_margin));
adapterViewPager = new MyPagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(adapterViewPager);
}
public class MyPagerAdapter extends FragmentPagerAdapter {
private final int NUM_ITEMS = 2;
public MyPagerAdapter(FragmentManager fragmentManager) {
super(fragmentManager);
}
// Returns total number of pages
#Override
public int getCount() {
return NUM_ITEMS;
}
/**
* Returns the proportional width of a given page as a percentage of the
* ViewPager's measured width from (0.f-1.f]
*
* #param position The position of the page requested
* #return Proportional width for the given page position
*/
// Returns the fragment to display for that page
#Override
public Fragment getItem(int position) {
switch (position) {
case 0: // Fragment # 0 - This will show FirstFragment
return MapActivityFragment.newInstance(mPhoneNumber);
case 1: // Fragment # 0 - This will show FirstFragment different title
return ListActivityFragment.newInstance(1, "Page # 2");
default:
return null;
}
}
// Returns the page title for the top indicator
#Override
public CharSequence getPageTitle(int position) {
return "Page " + position;
}
}
}
So please help me in creating this Interface which is fluid and similar to DUO application

Custom ViewPager center current item with a custom getPageWidth in Adapter

I have a Custom ViewPager which act like a Carousel, the thing is I want to be able to show multiple page on one. To do so we have 2 solutions :
Using the margins setPageMargin() method
Or we can use Override the getPageWidth method of the adapter of my ViewPager.
The first solution is working great but I want to be able to precise exactly the percentage of my current page. The thing is with the getPageWidth solution my current page is shifting at the left. It's logical because she only takes 80% of her previous size. So I tried to override the scrollTo function of my custom ViewPager like this :
#Override
public void scrollTo(int x, int y) {
x = (int) (x - (getWidth() - getWidth()*getAdapter().getPageWidth(getCurrentItem()))/2);
super.scrollTo(x, y);
}
It's working but I can't scroll as before, it's just acting really weird, don't go in the good direction, don't follow the finger... Is there any solution which allow me to have a working scroll and a centered current page ?
Here is my adapter :
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import java.util.ArrayList;
public class CarouselAdapter extends FragmentPagerAdapter implements ViewPager.OnPageChangeListener {
private ArrayList<Entity> mData = new ArrayList<>();
private ScaledRelativeLayout cur = null, next = null;
private float scale;
private MainActivity context;
private FragmentManager fragmentManager;
public CarouselAdapter(MainActivity context, FragmentManager fragmentManager, ArrayList<Entity> mData) {
super(fragmentManager);
this.fragmentManager = fragmentManager;
this.context = context;
this.mData = mData;
}
#Override
public float getPageWidth(int position) {
return (0.85f);
}
#Override
public Fragment getItem(int position) {
if (position == MainActivity.FIRST_PAGE) {
scale = MainActivity.BIG_SCALE;
} else {
scale = MainActivity.SMALL_SCALE;
}
position = position % mData.size();
Fragment fragment = CarouselFragment.newInstance(context, mData.get(position), position, scale);
return fragment;
}
#Override
public int getCount() {
return mData.size();
}
#Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
if (positionOffset >= 0f && positionOffset <= 1f) {
cur = getRootView(position);
cur.setScaleBoth(MainActivity.BIG_SCALE - MainActivity.DIFF_SCALE * positionOffset);
if (position < mData.size()-1) {
next = getRootView(position +1);
next.setScaleBoth(MainActivity.SMALL_SCALE + MainActivity.DIFF_SCALE * positionOffset);
}
}
}
#Override
public void onPageSelected(int position) {}
#Override
public void onPageScrollStateChanged(int state) {}
private ScaledRelativeLayout getRootView(int position) {
return (ScaledRelativeLayout) fragmentManager.findFragmentByTag(this.getFragmentTag(position)).getView().findViewById(R.id.rootItem);
}
private String getFragmentTag(int position) {
return "android:switcher:" + context.carousel.getId() + ":" + position;
}
}
More useless but here is my MainActivity :
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Button;
import java.util.ArrayList;
public class MainActivity extends FragmentActivity {
public static int FIRST_PAGE;
public final static float BIG_SCALE = 1.0f;
public final static float SMALL_SCALE = 0.85f;
public final static float DIFF_SCALE = BIG_SCALE - SMALL_SCALE;
public CarouselViewPager carousel;
private CarouselAdapter carouselAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FIRST_PAGE = mData.size()/2;
carouselAdapter = new CarouselAdapter(this, this.getSupportFragmentManager(), mData);
carousel = (CarouselViewPager) findViewById(R.id.carousel);
carousel.setAdapter(carouselAdapter);
carousel.addOnPageChangeListener(carouselAdapter);
carousel.setCurrentItem(Math.round(FIRST_PAGE));
carousel.setOffscreenPageLimit(3);
carousel.setClipToPadding(false);
carousel.setScrollDurationFactor(2.5f);
}
}
Edit :
root.post(new Runnable() {
#Override
public void run() {
int width = root.getWidth();
Log.w("Post", "Width : " + width + ", newWidth : " + (width * 0.8));
// root.setPadding((int) (width * 0.125), 0, (int) (width * 0.125), 0);
ViewPager.LayoutParams params = (ViewPager.LayoutParams) root.getLayoutParams();
params.width = (int) (width * 0.8);
root.setLayoutParams(params);
root.requestLayout();
root.forceLayout();
root.invalidate();
}
});
Regards

Instead of setPageMargin or getPageWidth You can just set padding to your ViewPager.
<android.support.v4.view.ViewPager
android:id="#+id/main_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:clipToPadding="false" />
Notice the clipToPadding part, it is important to show other pages.
If you want to show your width as x% of the screen, you can do this in Java
mRootView.post(new Runnable() {
#Override
public void run() {
int w = mRootView.getWidth();
mViewPager.setPadding(w * 0.25, 0, w * 0.25, 0);
// 25% padding on either side so pages takes exactly 50% space
}
});

Photo album like card flip using ViewPager?

How can i implement same as the UI and code found in GitHub by using latest tools like ViewPager. the code founded hasn't developed with latest tools.It seems little difficult UI for me.
Any suggestion ?

Try like this
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.example.pagercontainer.PagerContainer
android:id="#+id/pager_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#CCC">
<android.support.v4.view.ViewPager
android:layout_width="150dp"
android:layout_height="100dp"
android:layout_gravity="center_horizontal" />
</com.example.pagercontainer.PagerContainer>
</RelativeLayout>
PagerActivity.java
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
/**
* PagerActivity: A Sample Activity for PagerContainer
*/
public class PagerActivity extends Activity {
PagerContainer mContainer;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mContainer = (PagerContainer) findViewById(R.id.pager_container);
ViewPager pager = mContainer.getViewPager();
PagerAdapter adapter = new MyPagerAdapter();
pager.setAdapter(adapter);
//Necessary or the pager will only have one extra page to show
// make this at least however many pages you can see
pager.setOffscreenPageLimit(adapter.getCount());
//A little space between pages
pager.setPageMargin(15);
//If hardware acceleration is enabled, you should also remove
// clipping on the pager for its children.
pager.setClipChildren(false);
}
//Nothing special about this adapter, just throwing up colored views for demo
private class MyPagerAdapter extends PagerAdapter {
#Override
public Object instantiateItem(ViewGroup container, int position) {
TextView view = new TextView(PagerActivity.this);
view.setText("Item "+position);
view.setGravity(Gravity.CENTER);
view.setBackgroundColor(Color.argb(255, position * 50, position * 10, position * 50));
container.addView(view);
return view;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((View)object);
}
#Override
public int getCount() {
return 5;
}
#Override
public boolean isViewFromObject(View view, Object object) {
return (view == object);
}
}
}
PagerContainer .java
import android.content.Context;
import android.graphics.Point;
import android.support.v4.view.ViewPager;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.FrameLayout;
/**
* PagerContainer: A layout that displays a ViewPager with its children that are outside
* the typical pager bounds.
*/
public class PagerContainer extends FrameLayout implements ViewPager.OnPageChangeListener {
private ViewPager mPager;
boolean mNeedsRedraw = false;
public PagerContainer(Context context) {
super(context);
init();
}
public PagerContainer(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public PagerContainer(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init();
}
private void init() {
//Disable clipping of children so non-selected pages are visible
setClipChildren(false);
//Child clipping doesn't work with hardware acceleration in Android 3.x/4.x
//You need to set this value here if using hardware acceleration in an
// application targeted at these releases.
setLayerType(View.LAYER_TYPE_SOFTWARE, null);
}
#Override
protected void onFinishInflate() {
try {
mPager = (ViewPager) getChildAt(0);
mPager.setOnPageChangeListener(this);
} catch (Exception e) {
throw new IllegalStateException("The root child of PagerContainer must be a ViewPager");
}
}
public ViewPager getViewPager() {
return mPager;
}
private Point mCenter = new Point();
private Point mInitialTouch = new Point();
#Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
mCenter.x = w / 2;
mCenter.y = h / 2;
}
#Override
public boolean onTouchEvent(MotionEvent ev) {
//We capture any touches not already handled by the ViewPager
// to implement scrolling from a touch outside the pager bounds.
switch (ev.getAction()) {
case MotionEvent.ACTION_DOWN:
mInitialTouch.x = (int)ev.getX();
mInitialTouch.y = (int)ev.getY();
default:
ev.offsetLocation(mCenter.x - mInitialTouch.x, mCenter.y - mInitialTouch.y);
break;
}
return mPager.dispatchTouchEvent(ev);
}
#Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
//Force the container to redraw on scrolling.
//Without this the outer pages render initially and then stay static
if (mNeedsRedraw) invalidate();
}
#Override
public void onPageSelected(int position) { }
#Override
public void onPageScrollStateChanged(int state) {
mNeedsRedraw = (state != ViewPager.SCROLL_STATE_IDLE);
}
}
See this

Add button to a SlidingDrawer handle?

I've been working on this for a while. The Idea started simple, I wanted a button on a SlidingDrawer handle to allow the user to view settings specific to the content of the drawer. So I made a layout with a button off to the side and set it as the handle. The drawer drew fine, but would not allow the button (on the handle) to be pressed. When ever I try to click the thing, the click is interpreted as a handle click, and toggle the state of the drawer.
Does anyone know whats going on?
Thanks ~Aedon

I'll post my implementation, to save others the trouble.
You basically have to extend the SlidingDrawer class and handle the onInterceptTouch events to pass through when they're on top of items inside the handle layout.
This assumes you are using a ViewGroup (e.g. any layout) for the handle and all the views inside it are clickable.
import android.content.Context;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.SlidingDrawer;
public class ClickableSlidingDrawer extends SlidingDrawer {
private ViewGroup mHandleLayout;
private final Rect mHitRect = new Rect();
public ClickableSlidingDrawer(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public ClickableSlidingDrawer(Context context, AttributeSet attrs) {
super(context, attrs);
}
#Override
protected void onFinishInflate() {
super.onFinishInflate();
View handle = getHandle();
if (handle instanceof ViewGroup) {
mHandleLayout = (ViewGroup) handle;
}
}
#Override
public boolean onInterceptTouchEvent(MotionEvent event) {
if (mHandleLayout != null) {
int childCount = mHandleLayout.getChildCount();
int handleClickX = (int)(event.getX() - mHandleLayout.getX());
int handleClickY = (int)(event.getY() - mHandleLayout.getY());
Rect hitRect = mHitRect;
for (int i=0;i<childCount;i++) {
View childView = mHandleLayout.getChildAt(i);
childView.getHitRect(hitRect);
if (hitRect.contains(handleClickX, handleClickY)) {
return false;
}
}
}
return super.onInterceptTouchEvent(event);
}
}
Then, in your layout .xml just use <my.package.name.ClickableSlidingDrawer> instead of <SlidingDrawer>

I tried out d4n3's implementation, but since my handle contains a button that is nested within multiple ViewGroups, I had to modify it to make it work.
My implementations also assumes that you are using a ViewGroup for the handle, but the child views don't have to be clickable. Also, you have to set the tag to "click_intercepted" of the View(s) that you want to be clickable in the handle. Only child views with this specific tag set will be considered for clicks within the handle. This way, you can layout your handle anyway you want, and still act appropriately on clicks on specific Views (e.g. a Button) in the handle. Also, with this implementation, you can still both drag and click the handle to toggle its state.
import android.content.Context;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.SlidingDrawer;
public class ClickableSlidingDrawer extends SlidingDrawer
{
private static final String TAG_CLICK_INTERCEPTED = "click_intercepted";
private ViewGroup mHandleLayout;
private final Rect mHitRect = new Rect();
public ClickableSlidingDrawer(Context context, AttributeSet attrs)
{
super(context, attrs);
}
public ClickableSlidingDrawer(Context context, AttributeSet attrs, int defStyle)
{
super(context, attrs, defStyle);
}
#Override
protected void onFinishInflate()
{
super.onFinishInflate();
View handle = getHandle();
if (handle instanceof ViewGroup)
{
mHandleLayout = (ViewGroup) handle;
}
}
#Override
public boolean onInterceptTouchEvent(MotionEvent event)
{
if (mHandleLayout != null)
{
int clickX = (int) (event.getX() - mHandleLayout.getLeft());
int clickY = (int) (event.getY() - mHandleLayout.getTop());
if (isAnyClickableChildHit(mHandleLayout, clickX, clickY))
{
return false;
}
}
return super.onInterceptTouchEvent(event);
}
private boolean isAnyClickableChildHit(ViewGroup viewGroup, int clickX, int clickY)
{
for (int i = 0; i < viewGroup.getChildCount(); i++)
{
View childView = viewGroup.getChildAt(i);
if (TAG_CLICK_INTERCEPTED.equals(childView.getTag()))
{
childView.getHitRect(mHitRect);
if (mHitRect.contains(clickX, clickY))
{
return true;
}
}
if (childView instanceof ViewGroup && isAnyClickableChildHit((ViewGroup) childView, clickX, clickY))
{
return true;
}
}
return false;
}
}

You can suppress the action that interprets a click on the handle button as an "open" with an attribute in the SlidingDrawer element in the layout XML. Like this:
<SlidingDrawer android:layout_width="fill_parent"android:id="#+id/SlidingDrawer" android:handle="#+id/slideHandleButton"
android:content="#+id/txtHolder" android:layout_height="fill_parent"
android:orientation="horizontal" android:allowSingleTap="false">
Just make the android:allowSingleTap="false" Then just implement a click handler for the button like you normally would. This will stop it from opening/closing the drawer, but you might need to intercept the events for the button to get it to do what YOU want it to do.

First make a layout and put your Handle content in it (say you put in handle_content.xml).
Second replace your current handle handle with this:
<include android:id="#id/handle"
android:layout="#layout/handle_content.xml"/>
Now do as below (I say this because below work correctly if u do as above)
This is my implementation:
package com.examples.my.views;
import android.content.Context;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.widget.SlidingDrawer;
import com.examples.my.MainFragmentActivity;
public class MYSlidingDrawer extends SlidingDrawer {
private View button;
private int height;
private MainFragmentActivity activity;
public MYSlidingDrawer (Context context, AttributeSet attrs) {
super(context, attrs);
DisplayMetrics metrics = this.getResources().getDisplayMetrics();
height = metrics.heightPixels;
}
#Override
public boolean onTouchEvent(MotionEvent event) {
// TODO Auto-generated method stub
int left = button.getLeft();
int top = button.getTop();
int right = button.getRight();
int bottom = button.getBottom();
Rect rect = new Rect(left, top, right, bottom);
int x = (int) event.getX();
int y = (int) event.getY();
if (isOpened()) {
if (rect.contains(x, y)) {
if (event.getAction() == MotionEvent.ACTION_UP) {
if (activity != null)
{
//HERE DO YOUR WORK
// Like activity.tooglePlay();
}
}
return true;
}
} else {
y -= height;
if (rect.contains(x, Math.abs(y))) {
if (event.getAction() == MotionEvent.ACTION_UP) {
if (activity != null)
{
//HERE DO YOUR WORK
// Like activity.tooglePlay();
}
}
return true;
}
}
return super.onTouchEvent(event);
}
public void setButton(View button) {
this.button = button;
}
public void setActivity(MainFragmentActivity activity) {
this.activity = activity;
}
}
And now define this in which you include MYSlidingDrawer:
MYSlidingDrawer drawer = (MYSlidingDrawer) findViewById(R.id.drawer);
drawer.setActivity(this);
Button btn = (Button) findViewById(R.id.play_btn);//button inside your handle
drawer.setButton(btn);
Hope this help you.