Réponses:
Tout ce dont nous avons besoin sont: ViewPager , TabLayout et 2 drawables pour les points sélectionnés et par défaut.
Tout d'abord, nous devons ajouter TabLayout
à notre disposition d'écran et la connecter avec ViewPager
. Nous pouvons le faire de deux manières:
TabLayout
dansViewPager
<androidx.viewpager.widget.ViewPager
android:id="@+id/photos_viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.tabs.TabLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</androidx.viewpager.widget.ViewPager>
Dans ce cas
TabLayout
sera automatiquement connecté avecViewPager
, maisTabLayout
sera à côtéViewPager
, pas dessus.
TabLayout
<androidx.viewpager.widget.ViewPager
android:id="@+id/photos_viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<com.google.android.material.tabs.TabLayout
android:id="@+id/tab_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
Dans ce cas, nous pouvons mettre
TabLayout
n'importe où, mais nous devons nous connecterTabLayout
avec parViewPager
programme
ViewPager pager = (ViewPager) view.findViewById(R.id.photos_viewpager);
PagerAdapter adapter = new PhotosAdapter(getChildFragmentManager(), photosUrl);
pager.setAdapter(adapter);
TabLayout tabLayout = (TabLayout) view.findViewById(R.id.tab_layout);
tabLayout.setupWithViewPager(pager, true);
Une fois que nous avons créé notre mise en page, nous devons préparer nos points. Nous créons donc trois fichiers: selected_dot.xml
, default_dot.xml
et tab_selector.xml
.
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape
android:innerRadius="0dp"
android:shape="ring"
android:thickness="8dp"
android:useLevel="false">
<solid android:color="@color/colorAccent"/>
</shape>
</item>
</layer-list>
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape
android:innerRadius="0dp"
android:shape="ring"
android:thickness="8dp"
android:useLevel="false">
<solid android:color="@android:color/darker_gray"/>
</shape>
</item>
</layer-list>
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/selected_dot"
android:state_selected="true"/>
<item android:drawable="@drawable/default_dot"/>
</selector>
Maintenant, nous devons ajouter seulement 3 lignes de code TabLayout
dans notre mise en page XML.
app:tabBackground="@drawable/tab_selector"
app:tabGravity="center"
app:tabIndicatorHeight="0dp"
Pour ViewPager2
lire cet article:
ViewPager (2) avec indicateur de points sur medium.com
Les votes positifs sont les bienvenus ;-)
app:tabMaxWidth
dans TabLayout
app:tabMaxWidth="30dp" app:tabTextColor="@color/transparent2" app:tabSelectedTextColor="@color/transparent2" app:tabIndicatorHeight="0dp" android:layout_gravity="bottom|center"
Créez d'abord une mise en page, en donnant un LinerLayout pour les points qui s'affichent sur votre page de visualisation
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v4.view.ViewPager
android:id="@+id/view_pager"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<LinearLayout
android:id="@+id/pager_dots"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginBottom="10dp"
android:background="@android:color/transparent"
android:gravity="center_horizontal"
android:orientation="horizontal">
</LinearLayout>
</RelativeLayout>
Après cela, créez 2 drawables
1. Dessinable non sélectionné
<?xml version="1.0" encoding="utf-8"?>
<shape android:shape="oval" xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="@android:color/transparent"/>
<size android:width="12dp" android:height="12dp"/>
<stroke android:width="1dp" android:color="#ffffff"/>
</shape>
2. Dessinable sélectionné
<?xml version="1.0" encoding="utf-8"?>
<shape android:shape="oval" xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="@android:color/transparent"/>
<size android:width="12dp" android:height="12dp"/>
<stroke android:width="1dp" android:color="#000000"/>
</shape>
Après cet adaptateur défini
private LinearLayout llPagerDots;
private ViewPager viewPager;
private ArrayList<String> eventImagesUrl;
private HomeViewPagerAdapter homeViewPagerAdapter;
private ImageView[] ivArrayDotsPager;
public void setUpViewPager() {
viewPager = (ViewPager) findViewById(R.id.view_pager);
llPagerDots = (LinearLayout) findViewById(R.id.pager_dots);
homeViewPagerAdapter = new HomeViewPagerAdapter(mContext, eventImagesUrl);
viewPager.setAdapter(homeViewPagerAdapter);
setupPagerIndidcatorDots();
ivArrayDotsPager[0].setImageResource(R.drawable.page_indicator_selected);
viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
@Override
public void onPageSelected(int position) {
for (int i = 0; i < ivArrayDotsPager.length; i++) {
ivArrayDotsPager[i].setImageResource(R.drawable.page_indicator_unselected);
}
ivArrayDotsPager[position].setImageResource(R.drawable.page_indicator_selected);
}
@Override
public void onPageScrollStateChanged(int state) {
}
});
}
Créez une méthode setupPagerIndidcatorDots ():
private void setupPagerIndidcatorDots() {
ivArrayDotsPager = new ImageView[eventImagesUrl.size()];
for (int i = 0; i < ivArrayDotsPager.length; i++) {
ivArrayDotsPager[i] = new ImageView(getActivity());
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
params.setMargins(5, 0, 5, 0);
ivArrayDotsPager[i].setLayoutParams(params);
ivArrayDotsPager[i].setImageResource(R.drawable.page_indicator_unselected);
//ivArrayDotsPager[i].setAlpha(0.4f);
ivArrayDotsPager[i].setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
view.setAlpha(1);
}
});
llPagerDots.addView(ivArrayDotsPager[i]);
llPagerDots.bringToFront();
}
HomeViewPagerAdapter
?
Vous pouvez consulter ma bibliothèque pour gérer votre demande: https://github.com/tommybuonomo/dotsindicator
Dans votre mise en page XML
<com.tbuonomo.viewpagerdotsindicator.DotsIndicator
android:id="@+id/dots_indicator"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
app:dotsColor="@color/colorPrimary"
app:dotsSize="16dp"
app:dotsWidthFactor="3"
/>
Dans votre code Java
dotsIndicator = (DotsIndicator) findViewById(R.id.dots_indicator);
viewPager = (ViewPager) findViewById(R.id.view_pager);
adapter = new ViewPagerAdapter();
viewPager.setAdapter(adapter);
dotsIndicator.setViewPager(viewPager);
tools:replace="android:label"
à la application
balise dans my AndroidManifest.xml
pour me débarrasser d'une erreur au sujet de cette balise définie deux fois et provoquant un échec de construction de gradle.
gradle
Cependant, j'obtiens une erreur Error:(39, 20) All com.android.support libraries must use the exact same version specification (mixing versions can lead to runtime crashes). Found versions 27.0.0, 25.3.1. Examples include 'com.android.support:support-compat:27.0.0' and 'com.android.support:animated-vector-drawable:25.3.1'
- comment puis-je résoudre ce problème?
<android.support.v4.view.ViewPager
android:id="@+id/vpImage"
android:layout_width="match_parent"
android:layout_height="@dimen/_120sdp" />
<android.support.design.widget.TabLayout
android:id="@+id/tlImage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabBackground="@drawable/selector_product_image"
app:tabGravity="center"
app:tabIndicatorHeight="0dp"
app:tabMaxWidth="12dp"
app:tabRippleColor="@null" />
ImageAdapter imageAdapter = new ImageAdapter(context, arrayList);
vpImage.setOffscreenPageLimit(1);
vpImage.setAdapter(imageAdapter);
tlImage.setupWithViewPager(vpImage);
selector_product_image.xml
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/image_selected" android:state_selected="true" />
<item android:drawable="@drawable/image_unselected" />
</selector>
image_selected.xml
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape
android:innerRadius="0dp"
android:shape="ring"
android:thickness="4dp"
android:useLevel="false">
<solid android:color="@color/colorAccent" />
</shape>
</item>
</layer-list>
image_unselected.xml
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape
android:innerRadius="0dp"
android:shape="ring"
android:thickness="4dp"
android:useLevel="false">
<solid android:color="@color/colorPrimary" />
</shape>
</item>
</layer-list>
ImageAdapter.java
class ImageAdapter extends PagerAdapter {
private Context context;
private ArrayList<ImageModel> arrayList;
private LayoutInflater layoutInflater;
public ImageAdapter(Context context, ArrayList<ImageModel> arrayList) {
this.context = context;
this.arrayList = arrayList;
this.layoutInflater = (LayoutInflater) this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public int getCount() {
return arrayList.size();
}
@Override
public boolean isViewFromObject(@NonNull View view, @NonNull Object o) {
return view == ((View) o);
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
View view = layoutInflater.inflate(R.layout.row_slider_image, container, false);
AppCompatImageView ivProductImage = view.findViewById(R.id.ivProductImage);
if (!TextUtils.isEmpty(arrayList.get(position).getImage())) {
Glide.with(context)
.load(arrayList.get(position).getImage())
.apply(new RequestOptions().placeholder(R.drawable.no_image).error(R.drawable.no_image))
.into(ivProductImage);
}
container.addView(view);
return view;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((View) object);
}
}
row_slider_image.xml
<android.support.v7.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v7.widget.AppCompatImageView
android:id="@+id/ivProductImage"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/no_image" />
</android.support.v7.widget.LinearLayoutCompat>
Votre xml
<RelativeLayout
android:id="@+id/rl_speed"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="@+id/ll_dashboard_buttons"
android:layout_below="@+id/ib_menu">
<com.smart.gps.speedometer.app.utils.SmartViewPager
android:id="@+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
</com.smart.gps.speedometer.app.utils.SmartViewPager>
<android.support.design.widget.TabLayout
android:id="@+id/sliding_tabs"
android:layout_alignParentBottom="true"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabBackground="@drawable/tab_selector"
app:tabIndicatorHeight="0dp"
app:tabGravity="center"
/>
créer un dessin. clic droit sur drawable -> new -> Drawable file resource name that file
tab_selector.xml
<item android:drawable="@drawable/selected_tab"
android:state_selected="true"/>
<item android:drawable="@drawable/unselected_tab"/>
Il y a maintenant deux autres fichiers xml. créez deux autres fichiers xml avec un nom respecté. ce sont l'indicateur de sélection et l'indicateur non sélectionné
selected_tab.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape
android:innerRadius="0dp"
android:shape="ring"
android:thickness="4dp"
android:useLevel="false">
<solid android:color="@color/highspeed"/>
</shape>
</item>
</layer-list>
unselected_tab.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape
android:innerRadius="0dp"
android:shape="ring"
android:thickness="2dp"
android:useLevel="false">
<solid android:color="@android:color/darker_gray"/>
</shape>
</item>
</layer-list>
SmartViewPager
Est probablement votre vue personnalisée.
Lorsque vous voulez quelque chose de similaire avec les derniers ViewPager2 et Kotlin
Tout s'explique d'elle-même, pas besoin d'expliquer!
1. Votre activité ou fragment
val imageList = listOf(
ImageModel(R.drawable.offer1),
ImageModel(R.drawable.splash),
ImageModel(R.drawable.offer1),
ImageModel(R.drawable.splash2)
)
val adapter = HomeOffersAdapter()
adapter.setItem(imageList)
photos_viewpager.adapter = adapter
TabLayoutMediator(tab_layout, photos_viewpager) { tab, position ->
}.attach()
}
2. Disposition
<RelativeLayout 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="@dimen/dp_200">
<androidx.viewpager2.widget.ViewPager2
android:id="@+id/photos_viewpager"
android:layout_width="match_parent"
android:layout_height="@dimen/dp_200" />
<com.google.android.material.tabs.TabLayout
android:id="@+id/tab_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_gravity="bottom|center"
app:tabBackground="@drawable/tab_selector"
app:tabGravity="center"
app:tabIndicatorHeight="0dp"
app:tabSelectedTextColor="@android:color/transparent"
app:tabTextColor="@android:color/transparent" />
3. Dessiné: tab_selector.xml
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/dot_selected" android:state_selected="true" />
<item android:drawable="@drawable/dot_default" />
4. Dessinable: dot_selected.xml
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:innerRadius="0dp"
android:shape="ring"
android:thickness="@dimen/dp_8"
android:useLevel="false">
<solid android:color="@color/colorPrimary" />
<stroke
android:width="@dimen/dp_1"
android:color="@android:color/white" />
5. Dessiné: dot_default.xml
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:innerRadius="0dp"
android:shape="ring"
android:thickness="@dimen/dp_8"
android:useLevel="false">
<solid android:color="@android:color/transparent" />
<stroke
android:width="@dimen/dp_1"
android:color="@android:color/white" />
6. Adaptateur
class HomeOffersAdapter : RecyclerView.Adapter<HomeOffersAdapter.HomeOffersViewHolder>() {
private var list: List<ImageModel> = listOf()
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): HomeOffersViewHolder {
return HomeOffersViewHolder(parent)
}
override fun onBindViewHolder(holder: HomeOffersViewHolder, position: Int) {
holder.bind(list[position])
}
fun setItem(list: List<ImageModel>) {
this.list = list
notifyDataSetChanged()
}
override fun getItemCount(): Int = list.size
class HomeOffersViewHolder constructor(itemView: View) : RecyclerView.ViewHolder(itemView) {
constructor(parent: ViewGroup) : this(
LayoutInflater.from(parent.context).inflate(
R.layout.pager_item,
parent, false
)
)
fun bind(imageModel: ImageModel) {
itemView.offerImage.setImageResource(imageModel.image)
}
}
}
7. Disposition: pager_item.xml
<LinearLayout 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:fitsSystemWindows="true"
android:orientation="vertical">
<androidx.appcompat.widget.AppCompatImageView
android:id="@+id/offerImage"
android:layout_width="match_parent"
android:layout_height="@dimen/dp_200"
android:adjustViewBounds="true"
android:scaleType="fitXY"
tools:src="@drawable/offer1" />
Placez ViewFlipper et viewFlipper_linear_dot_lay (Linearlayout) sur la même ligne de base et suivez celle ci-dessous
viewFlipper_linear_dot_lay= (LinearLayout) findViewById(R.id.dots_lay);
setupDotsOnViewPager(images_viewFlipper);
for (int i = 0; i < images_viewFlipper.size(); i++) {
//Add Images to ViewFlipper
}
private void setupDotsOnViewPager(ArrayList images_viewFlipper) {
images_linear = new ImageView[images_viewFlipper.size()];
for (int i = 0; i < images_linear.length; i++) {
images_linear[i] = new ImageView(this);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
params.setMargins(5, 0, 5, 0);
params.gravity = Gravity.BOTTOM | Gravity.CENTER;
images_linear[i].setLayoutParams(params);
images_linear[i].setImageResource(R.drawable.unselected);
viewFlipper_linear_dot_lay.addView(images_linear[i]);
viewFlipper_linear_dot_lay.bringToFront();
}
}
Et OnRight & OnLeft obtientures placer le code ci-dessous
for (int i = 0; i < images_linear.length; i++) {
images_linear[i].setImageResource(R.drawable.unselected);
}
images_linear[viewFlipper.getDisplayedChild()].setImageResource(R.drawable.selected);
Ajouter des dépendances> Synchroniser le Gradle
implementation 'com.tbuonomo.andrui:viewpagerdotsindicator:4.1.2'
Dans votre code java
dotsIndicator = (DotsIndicator) findViewById(R.id.dots_indicator3);
myViewPagerAdapter = new MyViewPagerAdapter();
viewPager.setAdapter(myViewPagerAdapter);
viewPager.addOnPageChangeListener(viewPagerPageChangeListener);
dotsIndicator.setViewPager(viewPager);
Dans votre mise en page
<com.tbuonomo.viewpagerdotsindicator.SpringDotsIndicator
android:id="@+id/spring_dots_indicator"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:dampingRatio="0.5"
app:dotsColor="@color/material_white"
app:dotsStrokeColor="@color/material_yellow"
app:dotsCornerRadius="2dp"
app:dotsSize="16dp"
app:dotsSpacing="6dp"
app:dotsStrokeWidth="2dp"
app:stiffness="300"
/>