μ΄μ²λΌ ViewPagerμ 3 κ°μ μλμͺ½ μ μ μΆκ°νκ³ μΆμ΅λλ€.
FragmentActivityλ₯Ό μ¬μ©νκ³ λΌμ΄λΈλ¬λ¦¬ ViewPagerλ₯Ό μ§μν©λλ€.
λ΅λ³
κ·Έλ κ² λ§μ μ½λκ° νμνμ§ μμ΅λλ€.
viewpager
with λ§ μ¬μ©νλ©΄ μ½λ©νμ§ μκ³ λμ΄ λͺ¨λ μμ
μ μν ν μ μμ΅λλ€ tablayout
.
κΈ°λ³Έ λ μ΄μμ :
<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="wrap_content">
<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v4.view.ViewPager>
<android.support.design.widget.TabLayout
android:id="@+id/tabDots"
android:layout_alignParentBottom="true"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabBackground="@drawable/tab_selector"
app:tabGravity="center"
app:tabIndicatorHeight="0dp"/>
</RelativeLayout>
λ€μκ³Ό κ°μ΄ UI μμ λΉνμ± λλ λ¨νΈμ μ°κ²°νμμμ€.
μλ° μ½λ :
mImageViewPager = (ViewPager) findViewById(R.id.pager);
TabLayout tabLayout = (TabLayout) findViewById(R.id.tabDots);
tabLayout.setupWithViewPager(mImageViewPager, true);
κ·Έκ² λ€μΌ, λλ μκ°.
λλ‘μ΄ λΈ ν΄λ μ λ€μ xml 리μμ€ νμΌμ λ§λ€μ΄μΌ ν©λλ€.
tab_indicator_selected.xml
<?xml version="1.0" encoding="utf-8"?>
<shape
android:innerRadius="0dp"
android:shape="oval"
android:thickness="4dp"
android:useLevel="false"
xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="@color/colorAccent"/>
</shape>
tab_indicator_default.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:innerRadius="0dp"
android:shape="oval"
android:thickness="2dp"
android:useLevel="false">
<solid android:color="@android:color/darker_gray"/>
</shape>
tab_selector.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/tab_indicator_selected"
android:state_selected="true"/>
<item android:drawable="@drawable/tab_indicator_default"/>
</selector>
λλ§νΌ κ²μΌλ₯Έ λλ? κΈμ, μμ λͺ¨λ μ½λλ λΌμ΄λΈλ¬λ¦¬λ‘ λ³νλ©λλ€!
μ¬μ©λ²
gradle
implementation 'com.chabbal:slidingdotsplash:1.0.2'
μ λ€μμ μΆκ°νμμμ€. Activity λλ Fragment λ μ΄μμμ λ€μμ μΆκ°νμμμ€.
<com.chabbal.slidingdotsplash.SlidingSplashView
android:id="@+id/splash"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:imageResources="@array/img_id_arr"/>
strings.xml
μλ₯Ό λ€μ΄ μ μ λ°°μ΄ λ§λ€κΈ°
<integer-array name="img_id_arr">
<item>@drawable/img1</item>
<item>@drawable/img2</item>
<item>@drawable/img3</item>
<item>@drawable/img4</item>
</integer-array>
λλ!
μΆκ° μ²μ·¨νκΈ° μν΄ νμ΄μ§ λ³κ²½ μ¬μ© addOnPageChangeListener(listener);
Githubμμμ λ§ν¬λ₯Ό .
λ΅λ³
λ΄ μμ μ루μ :
λ μ΄μμμμ :
<LinearLayout
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/dots"
/>
κ·Έλ¦¬κ³ νλμμ
private final static int NUM_PAGES = 5;
private ViewPager mViewPager;
private List<ImageView> dots;
@Override
protected void onCreate(Bundle savedInstanceState) {
// ...
addDots();
}
public void addDots() {
dots = new ArrayList<>();
LinearLayout dotsLayout = (LinearLayout)findViewById(R.id.dots);
for(int i = 0; i < NUM_PAGES; i++) {
ImageView dot = new ImageView(this);
dot.setImageDrawable(getResources().getDrawable(R.drawable.pager_dot_not_selected));
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT
);
dotsLayout.addView(dot, params);
dots.add(dot);
}
mViewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
@Override
public void onPageSelected(int position) {
selectDot(position);
}
@Override
public void onPageScrollStateChanged(int state) {
}
});
}
public void selectDot(int idx) {
Resources res = getResources();
for(int i = 0; i < NUM_PAGES; i++) {
int drawableId = (i==idx)?(R.drawable.pager_dot_selected):(R.drawable.pager_dot_not_selected);
Drawable drawable = res.getDrawable(drawableId);
dots.get(i).setImageDrawable(drawable);
}
}
λ΅λ³
viewPager.addOnPageChangeListener(new OnPageChangeListener() {
@Override
public void onPageSelected(int position) {
switch (position) {
case 0:
img_page1.setImageResource(R.drawable.dot_selected);
img_page2.setImageResource(R.drawable.dot);
img_page3.setImageResource(R.drawable.dot);
img_page4.setImageResource(R.drawable.dot);
break;
case 1:
img_page1.setImageResource(R.drawable.dot);
img_page2.setImageResource(R.drawable.dot_selected);
img_page3.setImageResource(R.drawable.dot);
img_page4.setImageResource(R.drawable.dot);
break;
case 2:
img_page1.setImageResource(R.drawable.dot);
img_page2.setImageResource(R.drawable.dot);
img_page3.setImageResource(R.drawable.dot_selected);
img_page4.setImageResource(R.drawable.dot);
break;
case 3:
img_page1.setImageResource(R.drawable.dot);
img_page2.setImageResource(R.drawable.dot);
img_page3.setImageResource(R.drawable.dot);
img_page4.setImageResource(R.drawable.dot_selected);
break;
default:
break;
}
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
@Override
public void onPageScrollStateChanged(int arg0) {
}
});
λ΅λ³
ViewPagerμμ νμ΄μ§ νμκΈ°μ νμμ±μ ν΄κ²°νκΈ° μν΄ λΌμ΄λΈλ¬λ¦¬λ₯Ό λ§λ€μμ΅λλ€. λ΄ λΌμ΄λΈλ¬λ¦¬μλ DotIndicatorλΌλ λ·°κ° μμ΅λλ€. λ΄ λΌμ΄λΈλ¬λ¦¬λ₯Ό μ¬μ©νλ €λ©΄ compile 'com.matthew-tamlin:sliding-intro-screen:3.2.0'
gradle λΉλ νμΌμ μΆκ° νμμμ€.
λ€μμ μΆκ°νμ¬λ³΄κΈ°λ₯Ό λ μ΄μμμ μΆκ° ν μ μμ΅λλ€.
<com.matthewtamlin.sliding_intro_screen_library.indicators.DotIndicator
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:numberOfDots=YOUR_INT_HERE
app:selectedDotIndex=YOUR_INT_HERE/>
μ μ½λλ Google Launcher ν νλ©΄μμ μ μ κΈ°λ₯μ μλ²½νκ² λ³΅μ νμ§λ§ μΆκ°λ‘ μ¬μ©μ μ μνλ €λ©΄ λ€μ μμ±μ μΆκ° ν μ μμ΅λλ€.
app:unselectedDotDiameter
λ°app:selectedDotDiameter
λνΈμ μ§κ²½μ μ€μ ν©λλ€app:unselectedDotColor
κ³Όapp:selectedDotColor
μ μ μμμ μ€μ ν©λλ€app:spacingBetweenDots
μ μ¬μ΄μ 거리λ₯Ό λ³κ²½app:dotTransitionDuration
μμ κ²μμ ν° κ²μΌλ‘ (κ·Έλ¦¬κ³ λ€λ‘) λ³νλ₯Ό μ λλ©μ΄μ νλ μκ°μ μ€μ νκΈ° μν΄
λν λ€μμ μ¬μ©νμ¬ νλ‘κ·Έλλ° λ°©μμΌλ‘보기λ₯Ό λ§λ€ μ μμ΅λλ€.
DotIndicator indicator = new DotIndicator(context);
μμ±κ³Ό μ μ¬ν μμ±μ μμ νλ λ°©λ²μ΄ μμ΅λλ€. μ νλ λ€λ₯Έ νμ΄μ§λ₯Ό νμνλλ‘ νμκΈ°λ₯Ό μ
λ°μ΄νΈνλ €λ©΄ indicator.setSelectedItem(int, true)
λ΄λΆμμ λ©μλ λ₯Ό νΈμΆνμμμ€ ViewPager.OnPageChangeListener.onPageSelected(int)
.
μ¬μ©μ€μΈ μλ λ€μκ³Ό κ°μ΅λλ€.
κ΄μ¬μ΄ μμΌμλ©΄ λΌμ΄λΈλ¬λ¦¬λ μ€μ λ‘ μμ gifμ νμλ κ²κ³Ό κ°μ μκ° νλ©΄μ λ§λ€λλ‘ μ€κ³λμμ΅λλ€.
Github μμ€ : https://github.com/MatthewTamlin/SlidingIntroScreen
λ΅λ³
ViewPagerIndicator
2012 λ
μ΄ν μ
λ°μ΄νΈλμ§ μμμΌλ©° μμ λμ§ μμ λͺ κ°μ§ λ²κ·Έκ° μμ΅λλ€.
λ§μ§λ§ μΌλ‘μ΄ λΌμ΄νΈ λΌμ΄λΈλ¬λ¦¬μμμ λν λ©μ§ μ μ νμνλ λμμ μ°Ύμ viewpager
μ΅λλ€. λ§ν¬λ λ€μκ³Ό κ°μ΅λλ€.
https://github.com/ongakuer/CircleIndicator
ꡬννκΈ° μ½λ€!
λ΅λ³
μμ λ¬Έμ μ λν κ°λ¨ν ν΄κ²°μ±
μ κ²μνλ €κ³ μκ°νμΌλ©° νμ ν μ«μλ νλμ λ³μ κ°λ§ λ³κ²½νμ¬ λμ μΌλ‘ λ³κ²½ν μ μμ΅λλ€ dotCounts=x
.
1) βitem_selectedβλΌλ νμ΄μ§ μ ν νμκΈ°μ λλ‘μ΄ λΈ ν΄λμ xml νμΌμ μμ±νμμμ€.
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval" android:useLevel="true"
android:dither="true">
<size android:height="8dp" android:width="8dp"/>
<solid android:color="@color/image_item_selected_for_dots"/>
</shape>
2) βitem_unselectedβλΌλ μ νλμ§ μμ νμκΈ°μ λν΄ νλ μ΄μμ xml νμΌμ μμ±νμμμ€.
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval" android:useLevel="true"
android:dither="true">
<size android:height="8dp" android:width="8dp"/>
<solid android:color="@color/image_item_unselected_for_dots"/>
</shape>
3) μ΄μ viewPager
λ μ΄μμ XML νμΌμμ μλ μ νμκΈ°λ₯Ό νμνλ €λ μμΉμ μ½λ μμ΄ λΆλΆμ μΆκ° νμμμ€.
<RelativeLayout
android:id="@+id/viewPagerIndicator"
android:layout_width="match_parent"
android:layout_below="@+id/banner_pager"
android:layout_height="wrap_content"
android:gravity="center">
<LinearLayout
android:id="@+id/viewPagerCountDots"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerHorizontal="true"
android:gravity="center"
android:orientation="horizontal" />
</RelativeLayout>
4) λ μ΄μμμ΄ ν½μ°½λκ±°λ μμ xml νμΌμ΄ κ΄λ ¨λ νλ νμΌ νμΌ μμμ΄ κΈ°λ₯μ μΆκ°νμμμ€.
private int dotsCount=5; //No of tabs or images
private ImageView[] dots;
LinearLayout linearLayout;
private void drawPageSelectionIndicators(int mPosition){
if(linearLayout!=null) {
linearLayout.removeAllViews();
}
linearLayout=(LinearLayout)findViewById(R.id.viewPagerCountDots);
dots = new ImageView[dotsCount];
for (int i = 0; i < dotsCount; i++) {
dots[i] = new ImageView(context);
if(i==mPosition)
dots[i].setImageDrawable(getResources().getDrawable(R.drawable.item_selected));
else
dots[i].setImageDrawable(getResources().getDrawable(R.drawable.item_unselected));
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT
);
params.setMargins(4, 0, 4, 0);
linearLayout.addView(dots[i], params);
}
}
5) λ§μ§λ§μΌλ‘ onCreate λ©μλμμ λ€μ μ½λλ₯Ό μΆκ°νμ¬ λ μ΄μμμ μ°Έμ‘°νκ³ νμ΄μ§ μ ν μμΉλ₯Ό μ²λ¦¬νμμμ€.
drawPageSelectionIndicators(0);
mPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
@Override
public void onPageSelected(int position) {
drawPageSelectionIndicators(position);
}
@Override
public void onPageScrollStateChanged(int state) {
}
});
λ΅λ³
λΉμ μ μ μ΄ν¬ μνΌμ λΌμ΄λΈλ¬λ¦¬λ₯Ό μλ ν μ μμ΅λλ€ β https://github.com/JakeWharton/Android-ViewPagerIndicator