Android viewPager image slide right to left - android

I want to add an image slide. But cannot make it slide from right to left. (for languages like Arabic or Hebrew)
I checked nearly all replies in stackoverflow, but can not find a clear solution.
I write here the whole code.
Please write me clearly, I am not a professional
mainActivity;
package com.manishkpr.viewpagerimagegallery;
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.view.ViewPager;
public class MainActivity extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager);
ImageAdapter adapter = new ImageAdapter(this);
viewPager.setAdapter(adapter);
}
}
here
is
the
ImageAdapter.java;
package com.manishkpr.viewpagerimagegallery;
import android.content.Context;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
public class ImageAdapter extends PagerAdapter {
Context context;
private int[] GalImages = new int[] {
R.drawable.one,
R.drawable.two,
R.drawable.three
};
ImageAdapter(Context context){
this.context=context;
}
#Override
public int getCount() {
return GalImages.length;
}
#Override
public boolean isViewFromObject(View view, Object object) {
return view == ((ImageView) object);
}
#Override
public Object instantiateItem(ViewGroup container, int position) {
ImageView imageView = new ImageView(context);
int padding = context.getResources().getDimensionPixelSize(R.dimen.padding_medium);
imageView.setPadding(padding, padding, padding, padding);
imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
imageView.setImageResource(GalImages[position]);
((ViewPager) container).addView(imageView, 0);
return imageView;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
((ViewPager) container).removeView((ImageView) object);
}
}
and here is the layout file;
<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=".MainActivity" >
<android.support.v4.view.ViewPager
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>

Create a Layout file 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>
Change your PagerAdapter like this:
public class ImageAdapter extends PagerAdapter {
Context context;
private int[] GalImages = new int[] {
R.drawable.one,
R.drawable.two,
R.drawable.three
};
LayoutInflater mLayoutInflater;
ImageAdapter(Context context){
this.context=context;
mLayoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
#Override
public int getCount() {
return GalImages.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(GalImages[position]);
container.addView(itemView);
return itemView;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((LinearLayout)object);
}
}
EDIT 1:
A trick :
public class MainActivity extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager);
ImageAdapter adapter = new ImageAdapter(this);
viewPager.setAdapter(adapter);
viewPager.setCurrentItem(adapter.getCount()-1);
}
I hope this helps :)

ViewPager is not support RTL.
You have to create custom ViewPager for swipe Right To Left for Arabic and other languages.
If you don't want to make code then there are lots of library available you can use one of them.
1. RtlViewPager
2. RtlViewPager

Instead of using ViewPager I suggest you to use SwipeDeck Because as Niranj Patel said ViewPager does not Support Right to left.
<?xml version="1.0" encoding="utf-8"?>
<com.daprlabs.cardstack.SwipeFrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:swipedeck="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<com.daprlabs.cardstack.SwipeDeck
android:id="#+id/swipe_deck"
android:layout_width="match_parent"
android:layout_height="480dp"
android:padding="20dp"
swipedeck:card_spacing="10dp"
swipedeck:max_visible="3"
swipedeck:render_above="true"
swipedeck:rotation_degrees="15" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:text="Button" />
</com.daprlabs.cardstack.SwipeFrameLayout>

Just smiple solution but it is not professional
Write this in xml for VeiwPager
android:rotationY="180"
and also in veiw_item
android:rotationY="180".

ViewPager2 supports RTL paging.
From docs:
RTL paging is enabled automatically where appropriate based on locale, but you can also manually enable RTL paging for a ViewPager2 element by setting its android:layoutDirection attribute:
<androidx.viewpager2.widget.ViewPager2
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/pager"
android:layoutDirection="rtl" />

Related

PagerAdapter change TextView when swiping

I'm using a PagerAdapter to swipe through a couple of ImageViews which works perfectly fine. I have a bunch of people in the gallery and I wish to add an individual name/description (id: speaker_name) to them. All I got to work is the same description for all of them. Im absolutely new to this and I am struggling for a day now to get it to work. All the solutions I found used fragments or an OnPageChangeListener but i couldnt figure out how to implement it.
This is what i've got:
<?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=".MainActivity" >
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true">
<android.support.v4.view.ViewPager
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/basicBackground">
</android.support.v4.view.ViewPager>
<TextView
android:id="#+id/speaker_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="50sp"
android:text="The Name"
android:textAlignment="center"
android:textColor="#android:color/white"
android:textSize="30sp" />
</FrameLayout>
</RelativeLayout>`
PagerAdapter:
public class ImageAdapter extends PagerAdapter {
SpeakerActivity sa;
Context context;
int i = 0;
public int[] GalImages = new int[] {
R.drawable.ben,
R.drawable.brett,
R.drawable.mark,
R.drawable.dusan,
R.drawable.michael,
R.drawable.mike,
R.drawable.ollie,
R.drawable.rebecca,
R.drawable.sebastian,
R.drawable.thomas,
R.drawable.tomasz,
R.drawable.toni,
};
ImageAdapter(Context context){
this.context=context;
}
#Override
public int getCount() {
return GalImages.length;
}
#Override
public boolean isViewFromObject(View view, Object object) {
return view == ((ImageView) object);
}
#Override
public Object instantiateItem(ViewGroup container, int position) {
ImageView imageView = new ImageView(context);
int padding = context.getResources().getDimensionPixelSize(R.dimen.padding_medium);
imageView.setPadding(padding, padding, padding, padding);
imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
imageView.setImageResource(GalImages[position]);
((ViewPager) container).addView(imageView, 0);
return imageView;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
((ViewPager) container).removeView((ImageView) object);
}
}
Activity:
public class SpeakerActivity extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.speaker_activity);
ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager);
ImageAdapter adapter = new ImageAdapter(this);
viewPager.setAdapter(adapter);
}
}
To change textview text when swiping you can do this inside oncreate() method:
viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
#Override
public void onPageSelected(int position) {
switch (position){
case 0:
//Do stuff
textview.setText("Ben");
break;
case 1:
//Do stuff
textview.setText("Brett");
break;
//Add other cases for the pages
}
}
#Override
public void onPageScrollStateChanged(int state) {
}
});
This is the implementation of viewpager OnPageChangeListener() for me the best way.
let me give you the basic idea
ViewPager that the Activity layout is binded to.
ImageAdapter that extends ViewPager/FragmentPager that basically adds views or fragments into the viewpager so that the activity can show it to you.
the activity connects the two objects by setting the viewpager's adapter to your ImageAdapter
Like I said in #2 there are many ways you u can implement the ViewPager there are many sites out there.
refer to https://www.bignerdranch.com/
it explain in great detail

View Pager(Handling Event Listener)

I created a Image Slider using View Pager.
I Tried using setOnPageChangeListener but It only triggered when
the user change the page of the viewpager.
What I'm doing(still no luck) is when the user tap on the screen
Another layout will appear.
But Im stuck to triggering the TAP event.
Here's my codes.
import android.content.Context;
import android.os.Bundle;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.Toast;
import com.thesis.juandirection.juandirectionfinale.R;
import uk.co.senab.photoview.PhotoViewAttacher;
public class viewInfo extends AppCompatActivity {
private ViewPager viewPager;
private CustomSwipeAdapter adapter;
PhotoViewAttacher mAttacher;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_view_info);
viewPager = (ViewPager) findViewById(R.id.view_pager);
adapter = new CustomSwipeAdapter(this);
viewPager.setAdapter(adapter);
viewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
#Override
public void onPageSelected(int position) {
Toast.makeText(getBaseContext(), "" + position, Toast.LENGTH_LONG).show();
}
});
}
public class CustomSwipeAdapter extends PagerAdapter {
private int[] image_resources = {R.drawable.bsu, R.drawable.gameover2};
private Context context;
private LayoutInflater layoutInflater;
public CustomSwipeAdapter(Context context) {
this.context = context;
}
#Override
public int getCount() {
return image_resources.length;
}
#Override
public boolean isViewFromObject(View view, Object object) {
return (view == (LinearLayout) object);
}
#Override
public Object instantiateItem(View container, int position) {
layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View item_view = layoutInflater.inflate(R.layout.swipe_layout, (ViewGroup) container, false);
ImageView imageView = (ImageView) item_view.findViewById(R.id.image_view);
imageView.setPadding(5, 5, 5, 5);
imageView.setImageResource(image_resources[position]);
((ViewGroup) container).addView(item_view);
mAttacher = new PhotoViewAttacher(imageView);
mAttacher.update();
return item_view;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((LinearLayout) object);
}
}
}
And the activit's XML.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/pls"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="true"
android:orientation="vertical"
tools:context="com.thesis.juandirection.juandirectionfinale.viewInfos.viewInfo">
<android.support.v4.view.ViewPager
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="fill_parent"></android.support.v4.view.ViewPager>
</LinearLayout>
And this is the XML layout that will be infalted.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center"
android:background="#000"
>
<ImageView
android:id="#+id/image_view"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_gravity="center"
android:gravity="center"
/>
</LinearLayout>
What I doing is when the user Tap on the Image.
Infos of the image will show on the Same Screen.(Like Facebook viewing photo)

Image slider using View Pager issue

I have an activity which contains a listView. Each item of the listView contains a swipeable set of images (which I have unsuccessfully tried to implement using a ViewPager).
My issue is this: when I try to implement a simple image slider using a view pager (i.e. Activity contains a ViewPager, and the View Pager's adapter supplies the images), the output is as expected, but if I try doing what I have mentioned in the previous paragraph (i.e. The Activity contains a listView and each item of the listView is a ViewPager which displays a swipeable set of images), I get a blank output. Please help me out! I have posted some code below:
MainActivity.java
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ListView list = (ListView) findViewById(R.id.stylistDisplay);
//To keep things simple I am sending only one item of the list to the adapter
list.setAdapter(new StylistAdapter(Cart.getList().get(0), this));
}
static class StylistAdapter extends BaseAdapter {
Stylist stylistObj;
Context context;
LayoutInflater inflater;
public StylistAdapter(Stylist obj, Context context) {
this.stylistObj = obj;
this.context = context;
inflater = ((Activity)this.context).getLayoutInflater();
}
#Override
public int getCount() {
return 1;
}
#Override
public Object getItem(int position) {
return stylistObj;
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
final ViewItem item;
if (convertView == null) {
convertView = inflater.inflate(R.layout.stylist_photos_view_pager, null);
item = new ViewItem();
item.photosViewPager = (ViewPager) convertView.findViewById(R.id.photos_view_pager);
convertView.setTag(item);
} else {
item = (ViewItem) convertView.getTag();
}
PhotosAdapter adapter = new PhotosAdapter(context);
item.photosViewPager.setAdapter(adapter);
return convertView;
}
private class ViewItem {
ViewPager photosViewPager;
}
}
activity_main.xml
<FrameLayout 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="com.temp.customer.MainActivity">
<ListView
android:id="#+id/stylistDisplay"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="#android:color/transparent"
android:background="#color/backGround"
android:padding="13.3dp"
android:clickable="true"
android:dividerHeight="5dp" />
</FrameLayout>
stylist_photos_view_pager
<RelativeLayout xmlns:android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:context=".MainActivity" >
<android.support.v4.view.ViewPager
android:id="#+id/photos_view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
PhotosAdapter.java
public class PhotosAdapter extends PagerAdapter {
private Context context;
private int[] GalImages = new int[] {
R.drawable.one,
R.drawable.two,
R.drawable.three
};
public PhotosAdapter(Context context) {
this.context = context;
}
#Override
public Object instantiateItem(ViewGroup container, int position) {
LayoutInflater inflater = ((Activity)context).getLayoutInflater();
View viewItem = inflater.inflate(R.layout.stylist_individual_details, container, false);
ImageView imageView = (ImageView) viewItem.findViewById(R.id.iv1);
imageView.setImageResource(GalImages[position]);
TextView textView1 = (TextView) viewItem.findViewById(R.id.tv1);
textView1.setText("hello world");
((ViewPager)container).addView(viewItem);
return viewItem;
}
#Override
public int getCount() {
return 3;
}
#Override
public boolean isViewFromObject(View view, Object object) {
boolean temp = view == ((LinearLayout) object);
return temp;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
((ViewPager) container).removeView((LinearLayout) object);
}
}
I've experienced similar issue, and have to say that it is a bad idea to use ViewPager as a listItem, since ViewPager is supposed to be used for fragments primarily.
I guess that your functionality should be similar to some horizontal pictures, on the main feed which is vertical. You can think of using horizontal scroll views which is a bit of a pain, but still more realistic to do that. You might also end up managing your own scrolling behavior, which might already be implemented by some libraries.
BUT I MIGHT BE WRONG!
This thread has a similar issue:
Placing ViewPager as a row in ListView
After reading around for a while I tried explicitly setting the height of the viewPager and its parent. This worked for me.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="200dip"
android:orientation="vertical" >
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="200dip" >
</android.support.v4.view.ViewPager>
</LinearLayout>
I don't know if there is a better solution, but if you do get a better solution please comment!

How could I develop an image carousel on Android?

I am trying to put a carousel on my top half of Android screen.
I like Bootstrap carousels like:
http://www.w3schools.com/bootstrap/bootstrap_carousel.asp
I am not sure the best way to approach this? Do I use a GridView in top half of my screen??
First you must create a Viewpager into your xml like:
<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"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
android:id="#+id/relativeLayout">
<android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v4.view.ViewPager>
</RelativeLayout>
For a custom Adapter you need to create a res/layout/pager_item.xml which will be used to inflate and generate a view into Adapter:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/imageView" />
</LinearLayout>
After that, you can create the custom Adapter to set your ViewPager:
public class CustomPagerAdapter extends PagerAdapter {
private Context mContext;
private LayoutInflater mLayoutInflater;
private int[] mResources;
public CustomPagerAdapter(Context context, int[] resources) {
mContext = context;
mResources = resources;
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(itemView);
return itemView;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((LinearLayout) object);
}
}
Then put the following code into onCreate in your Activity:
mViewPager = (ViewPager) findViewById(R.id.pager);
// This is just an example. You can use whatever collection of images.
int[] mResources = {
R.drawable.first,
R.drawable.second,
R.drawable.third,
R.drawable.fourth,
R.drawable.fifth,
R.drawable.sixth
};
CustomPagerAdapter mCustomPagerAdapter = new CustomPagerAdapter(this, mResources);
mViewPager.setAdapter(mCustomPagerAdapter);
Take a look the following tutorial for more details: http://codetheory.in/android-image-slideshow-using-viewpager-pageradapter/
Of simply use Android Image Slider, it's a beautiful and simple to use Library :
https://github.com/daimajia/AndroidImageSlider

Android view pager with page indicator

I need to get page indicator in the view pager file with images. Here is my code.
public class IndicatorActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
MyPagerAdapter adapter = new MyPagerAdapter();
ViewPager myPager = (ViewPager) findViewById(R.id.pager);
myPager.setAdapter(adapter);
myPager.setCurrentItem(0);
TitlePageIndicator indicator = (TitlePageIndicator)findViewById(R.id.indicat);
indicator.setViewPager( myPager );
}
}
In this code, i got an error in TitlePageIndicator indicator = (TitlePageIndicator)findViewById(R.id.indicat); as TitlePageIndicator cannot be resolved to a type. What is this error. How can I resolve it?
here is my xml code:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
<com.viewpagerindicator.TitlePageIndicator
android:id="#+id/indicat"
android:layout_height="wrap_content"
android:layout_width="fill_parent" />
</LinearLayout>
What code do I need to write in the TitlePageIndicator?
I want to do this without using fragments.
Me also created a class such as:
class MyPagerAdapter extends PagerAdapter {
private static Integer[] titles = new Integer[]
{
R.drawable.jk,R.drawable.lm,R.drawable.no
};
public int getCount() {
return 3;
}
public Object instantiateItem(View collection, int position) {
LayoutInflater inflater = (LayoutInflater) collection.getContext()
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view;
ImageView iv;
view = inflater.inflate(R.layout.first, null);
((ViewPager) collection).addView(view, 0);
switch (position) {
case 0:
iv = (ImageView)view.findViewById(R.id.imageView1);
iv.setImageResource(titles[position]);
break;
case 1:
iv = (ImageView)view.findViewById(R.id.imageView1);
iv.setImageResource(titles[position]);
break;
case 2:
iv = (ImageView)view.findViewById(R.id.imageView1);
iv.setImageResource(titles[position]);
break;
}
return view;
}
public void destroyItem(View arg0, int arg1, Object arg2) {
((ViewPager) arg0).removeView((View) arg2);
}
public boolean isViewFromObject(View arg0, Object arg1) {
return arg0 == ((View) arg1);
}
}
Did I want to do anything more than this class?
Thanks in advance for help
UPDATE: 22/03/2017
main fragment layout:
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<RadioGroup
android:id="#+id/page_group"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal|bottom"
android:layout_marginBottom="#dimen/margin_help_container"
android:orientation="horizontal">
<RadioButton
android:id="#+id/page1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true" />
<RadioButton
android:id="#+id/page2"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<RadioButton
android:id="#+id/page3"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RadioGroup>
</FrameLayout>
set up view and event on your fragment like this:
mViewPaper = (ViewPager) view.findViewById(R.id.viewpager);
mViewPaper.setAdapter(adapder);
mPageGroup = (RadioGroup) view.findViewById(R.id.page_group);
mPageGroup.setOnCheckedChangeListener(this);
mViewPaper.addOnPageChangeListener(this);
*************************************************
*************************************************
#Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
#Override
public void onPageSelected(int position) {
// when current page change -> update radio button state
int radioButtonId = mPageGroup.getChildAt(position).getId();
mPageGroup.check(radioButtonId);
}
#Override
public void onPageScrollStateChanged(int state) {
}
#Override
public void onCheckedChanged(RadioGroup radioGroup, int checkedId) {
// when checked radio button -> update current page
RadioButton checkedRadioButton = (RadioButton)radioGroup.findViewById(checkedId);
// get index of checked radio button
int index = radioGroup.indexOfChild(checkedRadioButton);
// update current page
mViewPaper.setCurrentItem(index), true);
}
custom checkbox state: Custom checkbox image android
Viewpager tutorial: http://architects.dzone.com/articles/android-tutorial-using
Here are a few things you need to do:
1-Download the library if you haven't already done that.
2- Import into Eclipse.
3- Set you project to use the library:
Project-> Properties -> Android -> Scroll down to Library section, click Add... and select viewpagerindicator.
4- Now you should be able to import com.viewpagerindicator.TitlePageIndicator.
Now about implementing this without using fragments:
In the sample that comes with viewpagerindicatior, you can see that the library is being used with a ViewPager which has a FragmentPagerAdapter.
But in fact the library itself is Fragment independant. It just needs a ViewPager.
So just use a PagerAdapter instead of a FragmentPagerAdapter and you're good to go.
I know this has already been answered, but for anybody looking for a simple, no-frills implementation of a ViewPager indicator, I've implemented one that I've open sourced. For anyone finding Jake Wharton's version a bit complex for their needs, have a look at https://github.com/jarrodrobins/SimpleViewPagerIndicator.
I have also used the SimpleViewPagerIndicator from #JROD. It also crashes as described by #manuelJ.
According to his documentation:
SimpleViewPagerIndicator pageIndicator = (SimpleViewPagerIndicator) findViewById(R.id.page_indicator);
pageIndicator.setViewPager(pager);
Make sure you add this line as well:
pageIndicator.notifyDataSetChanged();
It crashes with an array out of bounds exception because the SimpleViewPagerIndicator is not getting instantiated properly and the items are empty. Calling the notifyDataSetChanged results in all the values being set properly or rather reset properly.
Just an improvement to the nice answer given by #vuhung3990.
I implemented the solution and works great but if I touch one radio button it will be selected and nothing happens.
I suggest to also change page when a radio button is tapped. To do this, simply add a listener to the radioGroup:
mPager = (ViewPager) findViewById(R.id.pager);
final RadioGroup radioGroup = (RadioGroup)findViewById(R.id.radiogroup);
radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
switch (checkedId) {
case R.id.radioButton :
mPager.setCurrentItem(0, true);
break;
case R.id.radioButton2 :
mPager.setCurrentItem(1, true);
break;
case R.id.radioButton3 :
mPager.setCurrentItem(2, true);
break;
}
}
});
you have to do following:
1-Download the full project from here https://github.com/JakeWharton/ViewPagerIndicator
ViewPager Indicator
2- Import into the Eclipse.
After importing if you want to make following type of screen then follow below steps -
change in
Sample circles Default
package com.viewpagerindicator.sample;
import android.os.Bundle;
import android.support.v4.view.ViewPager;
import com.viewpagerindicator.CirclePageIndicator;
public class SampleCirclesDefault extends BaseSampleActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.simple_circles);
mAdapter = new TestFragmentAdapter(getSupportFragmentManager());
mPager = (ViewPager)findViewById(R.id.pager);
// mPager.setAdapter(mAdapter);
ImageAdapter adapter = new ImageAdapter(SampleCirclesDefault.this);
mPager.setAdapter(adapter);
mIndicator = (CirclePageIndicator)findViewById(R.id.indicator);
mIndicator.setViewPager(mPager);
}
}
ImageAdapter
package com.viewpagerindicator.sample;
import android.content.Context;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
public class ImageAdapter extends PagerAdapter {
private Context mContext;
private Integer[] mImageIds = { R.drawable.about1, R.drawable.about2,
R.drawable.about3, R.drawable.about4, R.drawable.about5,
R.drawable.about6, R.drawable.about7
};
public ImageAdapter(Context context) {
mContext = context;
}
public int getCount() {
return mImageIds.length;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
#Override
public Object instantiateItem(ViewGroup container, final int position) {
LayoutInflater inflater = (LayoutInflater) container.getContext()
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View convertView = inflater.inflate(R.layout.gallery_view, null);
ImageView view_image = (ImageView) convertView
.findViewById(R.id.view_image);
TextView description = (TextView) convertView
.findViewById(R.id.description);
view_image.setImageResource(mImageIds[position]);
view_image.setScaleType(ImageView.ScaleType.FIT_XY);
description.setText("The natural habitat of the Niligiri tahr,Rajamala Rajamala is 2695 Mts above sea level"
+ "The natural habitat of the Niligiri tahr,Rajamala Rajamala is 2695 Mts above sea level"
+ "The natural habitat of the Niligiri tahr,Rajamala Rajamala is 2695 Mts above sea level");
((ViewPager) container).addView(convertView, 0);
return convertView;
}
#Override
public boolean isViewFromObject(View view, Object object) {
return view == ((View) object);
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
((ViewPager) container).removeView((ViewGroup) object);
}
}
gallery_view.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#drawable/about_bg"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/about_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="1" >
<LinearLayout
android:id="#+id/about_layout1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight=".4"
android:orientation="vertical" >
<ImageView
android:id="#+id/view_image"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/about1">
</ImageView>
</LinearLayout>
<LinearLayout
android:id="#+id/about_layout2"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight=".6"
android:orientation="vertical" >
<TextView
android:id="#+id/textView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="SIGNATURE LANDMARK OF MALAYSIA-SINGAPORE CAUSEWAY"
android:textColor="#000000"
android:gravity="center"
android:padding="18dp"
android:textStyle="bold"
android:textAppearance="?android:attr/textAppearance" />
<ScrollView
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:fillViewport="false"
android:orientation="vertical"
android:scrollbars="none"
android:layout_marginBottom="10dp"
android:padding="10dp" >
<TextView
android:id="#+id/description"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:textColor="#000000"
android:text="TextView" />
</ScrollView>
</LinearLayout>
</LinearLayout>
You Can create a Linear layout containing an array of TextView (mDots).
To represent the textView as Dots provide this HTML source in your code .
refer my code .
I got this information from Youtube Channel TVAC Studio .
here the code : `
addDotsIndicator(0);
viewPager.addOnPageChangeListener(viewListener);
}
public void addDotsIndicator(int position)
{
mDots = new TextView[5];
mDotLayout.removeAllViews();
for (int i = 0; i<mDots.length ; i++)
{
mDots[i]=new TextView(this);
mDots[i].setText(Html.fromHtml("•")); //HTML for dots
mDots[i].setTextSize(35);
mDots[i].setTextColor(getResources().getColor(R.color.colorAccent));
mDotLayout.addView(mDots[i]);
}
if(mDots.length>0)
{
mDots[position].setTextColor(getResources().getColor(R.color.orange));
}
}
ViewPager.OnPageChangeListener viewListener = new ViewPager.OnPageChangeListener() {
#Override
public void onPageScrolled(int position, float positionOffset, int
positionOffsetPixels) {
}
#Override
public void onPageSelected(int position) {
addDotsIndicator(position);
}
#Override
public void onPageScrollStateChanged(int state) {
}
};`

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