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‎.gitignore

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*.iml
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.gradle
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/local.properties
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/.idea
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.DS_Store
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/build
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/captures
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.externalNativeBuild
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bintray.properties
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gradle.properties

‎README.md

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## 1、描述
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**CeilingLayout用来控制子View的吸顶联滑，目前支持联滑控件：`NestedScrollView`、`RecyclerView`、`SmartRefreshLayout`；只需要在xml里配置需要吸顶子View的位置索引就能自动实现吸顶联滑效果。**
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![结合ViewGroup使用例子](https://github.com/pirrip90/CeilingLayout/blob/master/screen/screen2.gif)
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## 2、模型图
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![模型](https://github.com/pirrip90/CeilingLayout/blob/master/screen/screen1.png)
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CeilingLayout`是`LinearLayout`的子类,使用方法与竖向`LinearLayout`一致。
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如模型图所示，`CeilingLayout`竖向排列子View时，吸顶子View之后有且只能再排列一个子View，一般为联动View或包裹住联动View的父容器。
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## 3、xml属性
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|方法名|参数|描述|
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|:---:|:---:|:---:|
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| ceiling_childIndex | integer | 吸顶子View的位置索引
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## 4、使用
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- **xml配置**
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```xml
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<!-- 子View位置索引为1的子View吸顶 -->
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<com.github.xubo.statuslayout.CeilingLayout
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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app:ceiling_childIndex="1">
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<View
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android:layout_width="match_parent"
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android:layout_height="100dp"/>
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<TextView
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android:layout_width="match_parent"
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android:layout_height="100dp"
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android:text="我是吸顶View"/>
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<android.support.v7.widget.RecyclerView
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android:layout_width="match_parent"
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android:layout_height="match_parent"/>
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</com.github.xubo.statuslayout.StatusLayout>
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```
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## 5、gradle
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add the dependency:
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```gradle
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dependencies {
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   ...
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implementation 'com.github.xubo.ceilinglayout:CeilingLayout:1.0.1'
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}
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```
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## 6、注意事项
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###1、支持联动View表
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- [x] NestedScrollView
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- [x] RecyclerView
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- [x] SmartRefreshLayout
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###2、错误的位置索引配置
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> * 不存在的子View位置索引
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> * 位置索引为0,索引为0吸顶毫无意义
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###3、SmartRefreshLayout使用注意
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请使用`CeilingSmartRefreshLayout`代替`SmartRefreshLayout`,否则`SmartRefreshLayout`联动的支持将失效
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‎app/.gitignore

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/build
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app.iml

‎app/build.gradle

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apply plugin: 'com.android.application'
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android {
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compileSdkVersion 28
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defaultConfig {
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applicationId "com.github.xubo.ceilinglayout.sample"
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minSdkVersion 14
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targetSdkVersion 28
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versionCode 1
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versionName "1.0"
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testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
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}
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buildTypes {
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release {
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minifyEnabled false
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proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
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}
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}
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}
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dependencies {
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implementation fileTree(dir: 'libs', include: ['*.jar'])
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implementation 'com.android.support:appcompat-v7:28.+'
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implementation 'com.android.support.constraint:constraint-layout:1.1.3'
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testImplementation 'junit:junit:4.12'
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androidTestImplementation 'com.android.support.test:runner:1.0.1'
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androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
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implementation 'com.android.support:recyclerview-v7:28.+'
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implementation project(':ceilinglayout')
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}

‎app/proguard-rules.pro

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# Add project specific ProGuard rules here.
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# You can control the set of applied configuration files using the
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# proguardFiles setting in build.gradle.
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#
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# For more details, see
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# http://developer.android.com/guide/developing/tools/proguard.html
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# If your project uses WebView with JS, uncomment the following
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# and specify the fully qualified class name to the JavaScript interface
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# class:
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#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
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# public *;
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#}
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# Uncomment this to preserve the line number information for
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# debugging stack traces.
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#-keepattributes SourceFile,LineNumberTable
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# If you keep the line number information, uncomment this to
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# hide the original source file name.
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#-renamesourcefileattribute SourceFile

‎app/src/androidTest/java/com/github/xubo/ceilinglayout/sample/ExampleInstrumentedTest.java

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package com.github.xubo.ceilinglayout.sample;
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import android.content.Context;
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import android.support.test.InstrumentationRegistry;
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import android.support.test.runner.AndroidJUnit4;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import static org.junit.Assert.*;
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/**
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* Instrumented test, which will execute on an Android device.
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* @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
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*/
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@RunWith(AndroidJUnit4.class)
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public class ExampleInstrumentedTest {
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@Test
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public void useAppContext() {
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// Context of the app under test.
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Context appContext = InstrumentationRegistry.getTargetContext();
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assertEquals("com.github.xubo.ceilinglayout.sample", appContext.getPackageName());
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}
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}

‎app/src/main/AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.github.xubo.ceilinglayout.sample">
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<application
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android:allowBackup="true"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:roundIcon="@mipmap/ic_launcher_round"
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android:supportsRtl="true"
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android:theme="@style/AppTheme">
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<activity android:name=".MainActivity">
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<intent-filter>
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<action android:name="android.intent.action.MAIN"/>
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<category android:name="android.intent.category.LAUNCHER"/>
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</intent-filter>
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</activity>
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</application>
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</manifest>

‎app/src/main/java/com/github/xubo/ceilinglayout/sample/MainActivity.java

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package com.github.xubo.ceilinglayout.sample;
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import android.graphics.Color;
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import android.support.v4.app.FragmentManager;
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import android.support.v4.view.ViewPager;
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import android.support.v7.app.ActionBar;
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import android.support.v7.app.AppCompatActivity;
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import android.os.Bundle;
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import android.util.DisplayMetrics;
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import android.util.Log;
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import android.widget.ImageView;
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import android.widget.RadioButton;
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import android.widget.RadioGroup;
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public class MainActivity extends AppCompatActivity {
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FragmentManager fragmentManager;
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ImageView main_image_iv;
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SliderRadioGroup main_srg;
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RadioButton main_tab1_rb;
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RadioButton main_tab2_rb;
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ViewPager main_content_vp;
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MyPagerAdapter myPagerAdapter;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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Utils.setColorLight(this, Color.WHITE);
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ActionBar actionBar = getSupportActionBar();
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if (actionBar != null) {
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actionBar.hide();
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}
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fragmentManager = getSupportFragmentManager();
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//id
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main_image_iv = findViewById(R.id.main_image_iv);
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main_srg = findViewById(R.id.main_srg);
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main_tab1_rb = findViewById(R.id.main_tab1_rb);
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main_tab2_rb = findViewById(R.id.main_tab2_rb);
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main_content_vp = findViewById(R.id.main_content_vp);
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main_image_iv.getLayoutParams().height = Utils.getScreenWidth(this) * 540 / 1920;
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myPagerAdapter = new MyPagerAdapter(fragmentManager);
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main_content_vp.setAdapter(myPagerAdapter);
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main_content_vp.setOffscreenPageLimit(2);
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main_content_vp.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
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@Override
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public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
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main_srg.move(position, positionOffset);
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}
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@Override
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public void onPageSelected(int position) {
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switch (position) {
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case 0:
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main_tab1_rb.setChecked(true);
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break;
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case 1:
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main_tab2_rb.setChecked(true);
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break;
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default:
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main_tab1_rb.setChecked(true);
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break;
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}
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}
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@Override
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public void onPageScrollStateChanged(int state) {
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}
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});
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main_srg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
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@Override
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public void onCheckedChanged(RadioGroup group, int checkedId) {
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switch (checkedId) {
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case R.id.main_tab1_rb:
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main_content_vp.setCurrentItem(0);
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break;
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case R.id.main_tab2_rb:
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main_content_vp.setCurrentItem(1);
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break;
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default:
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main_content_vp.setCurrentItem(0);
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break;
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}
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}
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});
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}
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}

‎app/src/main/java/com/github/xubo/ceilinglayout/sample/MyPagerAdapter.java

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package com.github.xubo.ceilinglayout.sample;
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import android.os.Bundle;
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import android.support.v4.app.Fragment;
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import android.support.v4.app.FragmentManager;
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import android.support.v4.app.FragmentPagerAdapter;
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/**
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* Author：xubo
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* Time：2019-03-21
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* Description：
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*/
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public class MyPagerAdapter extends FragmentPagerAdapter {
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public MyPagerAdapter(FragmentManager fm) {
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super(fm);
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}
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@Override
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public Fragment getItem(int position) {
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Fragment fragment;
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if (position == 0) {
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fragment = new Tab1Fragment();
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} else {
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fragment = new Tab2Fragment();
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}
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return fragment;
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}
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@Override
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public int getCount() {
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return 2;
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}
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}

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