├── .gitignore ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── hide │ │ └── myhoveringscroll │ │ └── app │ │ └── ApplicationTest.java │ └── main │ ├── AndroidManifest.xml │ ├── java │ └── com │ │ └── hide │ │ └── myhoveringscroll │ │ └── app │ │ ├── MainActivity.java │ │ └── MyHoveringScrollView.java │ └── res │ ├── layout │ └── activity_main.xml │ ├── menu │ └── menu_main.xml │ ├── mipmap-hdpi │ └── ic_launcher.png │ ├── mipmap-mdpi │ └── ic_launcher.png │ ├── mipmap-xhdpi │ └── ic_launcher.png │ ├── mipmap-xxhdpi │ └── ic_launcher.png │ ├── values-w820dp │ └── dimens.xml │ └── values │ ├── dimens.xml │ ├── strings.xml │ └── styles.xml ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | .gradle 2 | /local.properties 3 | /.idea/workspace.xml 4 | /.idea/libraries 5 | .DS_Store 6 | /build 7 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | buildscript { 2 | repositories { 3 | jcenter() 4 | } 5 | dependencies { 6 | classpath 'com.android.tools.build:gradle:1.1.1' 7 | } 8 | } 9 | apply plugin: 'com.android.application' 10 | 11 | repositories { 12 | jcenter() 13 | } 14 | 15 | android { 16 | compileSdkVersion 23 17 | buildToolsVersion "23.0.0" 18 | 19 | defaultConfig { 20 | applicationId "com.hide.myhoveringscroll.app" 21 | minSdkVersion 9 22 | targetSdkVersion 23 23 | versionCode 1 24 | versionName "1.0" 25 | } 26 | buildTypes { 27 | release { 28 | minifyEnabled false 29 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 30 | } 31 | } 32 | } 33 | 34 | dependencies { 35 | compile fileTree(dir: 'libs', include: ['*.jar']) 36 | compile 'com.android.support:appcompat-v7:23.0.0' 37 | } 38 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # By default, the flags in this file are appended to flags specified 3 | # in /Users/zhaoyiding/Documents/android-sdk-macosx/tools/proguard/proguard-android.txt 4 | # You can edit the include path and order by changing the proguardFiles 5 | # directive in build.gradle. 6 | # 7 | # For more details, see 8 | # http://developer.android.com/guide/developing/tools/proguard.html 9 | 10 | # Add any project specific keep options here: 11 | 12 | # If your project uses WebView with JS, uncomment the following 13 | # and specify the fully qualified class name to the JavaScript interface 14 | # class: 15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 16 | # public *; 17 | #} 18 | -------------------------------------------------------------------------------- /app/src/androidTest/java/com/hide/myhoveringscroll/app/ApplicationTest.java: -------------------------------------------------------------------------------- 1 | package com.hide.myhoveringscroll.app; 2 | 3 | import android.app.Application; 4 | import android.test.ApplicationTestCase; 5 | 6 | /** 7 | * Testing Fundamentals 8 | */ 9 | public class ApplicationTest extends ApplicationTestCase { 10 | public ApplicationTest() { 11 | super(Application.class); 12 | } 13 | } -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 10 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /app/src/main/java/com/hide/myhoveringscroll/app/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.hide.myhoveringscroll.app; 2 | 3 | import android.support.v7.app.ActionBarActivity; 4 | import android.os.Bundle; 5 | import android.view.Menu; 6 | import android.view.MenuItem; 7 | import android.view.View; 8 | import android.widget.Toast; 9 | 10 | 11 | public class MainActivity extends ActionBarActivity { 12 | 13 | private MyHoveringScrollView view_hover; 14 | 15 | @Override 16 | protected void onCreate(Bundle savedInstanceState) { 17 | super.onCreate(savedInstanceState); 18 | setContentView(R.layout.activity_main); 19 | 20 | view_hover = (MyHoveringScrollView) findViewById(R.id.view_hover); 21 | view_hover.setTopView(R.id.top); 22 | findViewById(R.id.btn).setOnClickListener(new View.OnClickListener() { 23 | @Override 24 | public void onClick(View v) { 25 | Toast.makeText(MainActivity.this,"点击了按钮", Toast.LENGTH_SHORT).show(); 26 | } 27 | }); 28 | } 29 | 30 | 31 | @Override 32 | public boolean onCreateOptionsMenu(Menu menu) { 33 | // Inflate the menu; this adds items to the action bar if it is present. 34 | getMenuInflater().inflate(R.menu.menu_main, menu); 35 | return true; 36 | } 37 | 38 | @Override 39 | public boolean onOptionsItemSelected(MenuItem item) { 40 | // Handle action bar item clicks here. The action bar will 41 | // automatically handle clicks on the Home/Up button, so long 42 | // as you specify a parent activity in AndroidManifest.xml. 43 | int id = item.getItemId(); 44 | 45 | //noinspection SimplifiableIfStatement 46 | if (id == R.id.action_settings) { 47 | return true; 48 | } 49 | 50 | return super.onOptionsItemSelected(item); 51 | } 52 | } 53 | -------------------------------------------------------------------------------- /app/src/main/java/com/hide/myhoveringscroll/app/MyHoveringScrollView.java: -------------------------------------------------------------------------------- 1 | package com.hide.myhoveringscroll.app; 2 | 3 | import android.annotation.SuppressLint; 4 | import android.annotation.TargetApi; 5 | import android.content.Context; 6 | import android.os.Build; 7 | import android.util.AttributeSet; 8 | import android.view.View; 9 | import android.view.ViewGroup; 10 | import android.widget.FrameLayout; 11 | import android.widget.ScrollView; 12 | 13 | /** 14 | * * * * * * * * * * * * * * * * * * * * * * * 15 | * Created by zhaoyiding 16 | * Date: 15/9/3 17 | * * * * * * * * * * * * * * * * * * * * * * * 18 | **/ 19 | public class MyHoveringScrollView extends FrameLayout { 20 | 21 | /** 22 | * 固定在顶部的View 23 | */ 24 | private ViewGroup mTopView; 25 | 26 | /** 27 | * 固定在顶部的View里面的内容 28 | */ 29 | private View mTopContent; 30 | 31 | /** 32 | * 固定在顶部的View在滚动条里最上端的位置 33 | */ 34 | private int mTopViewTop; 35 | 36 | /** 37 | * 滚动条的内容 38 | */ 39 | private ViewGroup mContentView; 40 | 41 | 42 | public MyHoveringScrollView(Context context) { 43 | this(context, null); 44 | } 45 | 46 | public MyHoveringScrollView(Context context, AttributeSet attrs) { 47 | this(context, attrs, 0); 48 | 49 | } 50 | 51 | public MyHoveringScrollView(Context context, AttributeSet attrs, int defStyleAttr) { 52 | super(context, attrs, defStyleAttr); 53 | init(); 54 | 55 | } 56 | 57 | @TargetApi(Build.VERSION_CODES.LOLLIPOP) 58 | public MyHoveringScrollView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 59 | super(context, attrs, defStyleAttr, defStyleRes); 60 | init(); 61 | } 62 | 63 | public void init() { 64 | post(new Runnable() { 65 | @Override 66 | public void run() { 67 | mContentView = (ViewGroup) getChildAt(0); 68 | removeAllViews(); 69 | 70 | MyScrollView scrollView = new MyScrollView(getContext(), MyHoveringScrollView.this); 71 | scrollView.addView(mContentView); 72 | addView(scrollView); 73 | 74 | } 75 | }); 76 | } 77 | 78 | 79 | public void setTopView(final int id) { 80 | post(new Runnable() { 81 | @Override 82 | public void run() { 83 | mTopView = (ViewGroup) mContentView.findViewById(id); 84 | 85 | int height = mTopView.getChildAt(0).getMeasuredHeight(); 86 | ViewGroup.LayoutParams params = mTopView.getLayoutParams(); 87 | params.height = height; 88 | mTopView.setLayoutParams(params); 89 | mTopViewTop = mTopView.getTop(); 90 | mTopContent = mTopView.getChildAt(0); 91 | 92 | } 93 | }); 94 | } 95 | 96 | public void onScroll(final int scrollY) { 97 | post(new Runnable() { 98 | @Override 99 | public void run() { 100 | if (mTopView == null 101 | ) return; 102 | 103 | if (scrollY >= mTopViewTop 104 | && mTopContent.getParent() == mTopView) { 105 | mTopView.removeView(mTopContent); 106 | addView(mTopContent); 107 | } else if (scrollY < mTopViewTop 108 | && mTopContent.getParent() == MyHoveringScrollView.this) { 109 | removeView(mTopContent); 110 | mTopView.addView(mTopContent); 111 | } 112 | 113 | } 114 | }); 115 | } 116 | 117 | @SuppressLint("ViewConstructor") 118 | private static class MyScrollView extends ScrollView { 119 | 120 | private MyHoveringScrollView mScrollView; 121 | 122 | public MyScrollView(Context context, MyHoveringScrollView scrollView) { 123 | super(context); 124 | mScrollView = scrollView; 125 | } 126 | 127 | 128 | @Override 129 | protected void onScrollChanged(int l, int t, int oldl, int oldt) { 130 | super.onScrollChanged(l, t, oldl, oldt); 131 | mScrollView.onScroll(t); 132 | } 133 | 134 | } 135 | 136 | 137 | } 138 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 6 | 10 | 15 | 16 | 19 | 23 | 30 |