add LoopRecyclerViewPager demo

lsjwzh · Dec 12, 2015 · 93c3b3f · 93c3b3f
1 parent 3a72ab7
commit 93c3b3f
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Showing 10 changed files with 151 additions and 9 deletions.
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
@@ -25,6 +25,9 @@
         <activity
           android:name=".VerticalPagerActivity" >
         </activity>
+        <activity
+          android:name=".LoopPagerActivity" >
+        </activity>
         <activity
           android:name=".MaterialDemoActivity"
           android:theme="@style/Theme.DesignDemo">

diff --git a/app/src/main/java/com/lsjwzh/widget/recyclerviewpagerdeomo/LoopPagerActivity.java b/app/src/main/java/com/lsjwzh/widget/recyclerviewpagerdeomo/LoopPagerActivity.java
@@ -0,0 +1,105 @@
+package com.lsjwzh.widget.recyclerviewpagerdeomo;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+
+import com.lsjwzh.widget.recyclerviewpager.LoopRecyclerViewPager;
+
+public class LoopPagerActivity extends Activity {
+    protected LoopRecyclerViewPager mRecyclerViewPager;
+    private EditText mTargetPosition;
+    private Button mScrollToPosition;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.demo_loopviewpager);
+        initViewPager();
+    }
+
+    protected void initViewPager() {
+        mRecyclerViewPager = (LoopRecyclerViewPager) findViewById(R.id.viewpager);
+        mTargetPosition = (EditText) findViewById(R.id.target_position);
+        mScrollToPosition = (Button) findViewById(R.id.scroll_to_target_position);
+        mScrollToPosition.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                int position = mTargetPosition.getText() != null ? Integer.valueOf(mTargetPosition
+                        .getText()
+                        .toString()) : 0;
+                mRecyclerViewPager.smoothScrollToPosition(position);
+            }
+        });
+
+        LinearLayoutManager layout = new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL,
+                false);
+        mRecyclerViewPager.setTriggerOffset(0.15f);
+        mRecyclerViewPager.setFlingFactor(0.25f);
+        mRecyclerViewPager.setLayoutManager(layout);
+        mRecyclerViewPager.setAdapter(new LayoutAdapter(this, mRecyclerViewPager));
+        mRecyclerViewPager.setHasFixedSize(true);
+        mRecyclerViewPager.setLongClickable(true);
+
+        mRecyclerViewPager.setOnScrollListener(new RecyclerView.OnScrollListener() {
+            @Override
+            public void onScrollStateChanged(RecyclerView recyclerView, int scrollState) {
+
+            }
+
+            @Override
+            public void onScrolled(RecyclerView recyclerView, int i, int i2) {
+//                mPositionText.setText("First: " + mRecyclerViewPager.getFirstVisiblePosition());
+                int childCount = mRecyclerViewPager.getChildCount();
+                int width = mRecyclerViewPager.getChildAt(0).getWidth();
+                int padding = (mRecyclerViewPager.getWidth() - width) / 2;
+
+                for (int j = 0; j < childCount; j++) {
+                    View v = recyclerView.getChildAt(j);
+                    //往左 从 padding 到 -(v.getWidth()-padding) 的过程中，由大到小
+                    float rate = 0;
+                    if (v.getLeft() <= padding) {
+                        if (v.getLeft() >= padding - v.getWidth()) {
+                            rate = (padding - v.getLeft()) * 1f / v.getWidth();
+                        } else {
+                            rate = 1;
+                        }
+                        v.setScaleY(1 - rate * 0.1f);
+                    } else {
+                        //往右 从 padding 到 recyclerView.getWidth()-padding 的过程中，由大到小
+                        if (v.getLeft() <= recyclerView.getWidth() - padding) {
+                            rate = (recyclerView.getWidth() - padding - v.getLeft()) * 1f / v.getWidth();
+                        }
+                        v.setScaleY(0.9f + rate * 0.1f);
+                    }
+                }
+            }
+        });
+
+        mRecyclerViewPager.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
+            @Override
+            public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
+                if (mRecyclerViewPager.getChildCount() < 3) {
+                    if (mRecyclerViewPager.getChildAt(1) != null) {
+                        View v1 = mRecyclerViewPager.getChildAt(1);
+                        v1.setScaleY(0.9f);
+                    }
+                } else {
+                    if (mRecyclerViewPager.getChildAt(0) != null) {
+                        View v0 = mRecyclerViewPager.getChildAt(0);
+                        v0.setScaleY(0.9f);
+                    }
+                    if (mRecyclerViewPager.getChildAt(2) != null) {
+                        View v2 = mRecyclerViewPager.getChildAt(2);
+                        v2.setScaleY(0.9f);
+                    }
+                }
+
+            }
+        });
+    }
+}
diff --git a/app/src/main/java/com/lsjwzh/widget/recyclerviewpagerdeomo/MainActivity.java b/app/src/main/java/com/lsjwzh/widget/recyclerviewpagerdeomo/MainActivity.java
@@ -62,12 +62,18 @@ void onClick() {
                 startActivity(new Intent(MainActivity.this, MaterialDemoActivity.class));
             }
         });
-        mDemoListAdapter.add(new DemoItem("Vertical ViewPager Demo(TODO)") {
+        mDemoListAdapter.add(new DemoItem("Vertical ViewPager Demo") {
             @Override
             void onClick() {
                 startActivity(new Intent(MainActivity.this, VerticalPagerActivity.class));
             }
         });
+        mDemoListAdapter.add(new DemoItem("Loop ViewPager Demo") {
+            @Override
+            void onClick() {
+                startActivity(new Intent(MainActivity.this, LoopPagerActivity.class));
+            }
+        });
         mDemoListAdapter.add(new DemoItem("3D effect Demo(TODO)") {
             @Override
             void onClick() {

diff --git a/app/src/main/java/com/lsjwzh/widget/recyclerviewpagerdeomo/SingleFlingPagerActivity.java b/app/src/main/java/com/lsjwzh/widget/recyclerviewpagerdeomo/SingleFlingPagerActivity.java
@@ -35,7 +35,7 @@ public void onScrollStateChanged(RecyclerView recyclerView, int scrollState) {
 
             @Override
             public void onScrolled(RecyclerView recyclerView, int i, int i2) {
-//                mPositionText.setText("First: " + mRecyclerView.getFirstVisiblePosition());
+//                mPositionText.setText("First: " + mRecyclerViewPager.getFirstVisiblePosition());
                 int childCount = mRecyclerView.getChildCount();
                 int width = mRecyclerView.getChildAt(0).getWidth();
                 int padding = (mRecyclerView.getWidth() - width) / 2;

diff --git a/app/src/main/java/com/lsjwzh/widget/recyclerviewpagerdeomo/VerticalLayoutFragment.java b/app/src/main/java/com/lsjwzh/widget/recyclerviewpagerdeomo/VerticalLayoutFragment.java
@@ -57,7 +57,7 @@ public void onViewCreated(View view, Bundle savedInstanceState) {
         mToast = Toast.makeText(activity, "", Toast.LENGTH_SHORT);
         mToast.setGravity(Gravity.CENTER, 0, 0);
 
-        mRecyclerView = (RecyclerViewPager) view.findViewById(R.id.list);
+        mRecyclerView = (RecyclerViewPager) view.findViewById(R.id.viewpager);
 
         LinearLayoutManager layout = new LinearLayoutManager(getActivity(),LinearLayoutManager.VERTICAL,false);
         mRecyclerView.setTriggerOffset(0.15f);
@@ -81,7 +81,7 @@ public void onScrollStateChanged(RecyclerView recyclerView, int scrollState) {
 
             @Override
             public void onScrolled(RecyclerView recyclerView, int i, int i2) {
-//                mPositionText.setText("First: " + mRecyclerView.getFirstVisiblePosition());
+//                mPositionText.setText("First: " + mRecyclerViewPager.getFirstVisiblePosition());
                 int childCount = mRecyclerView.getChildCount();
                 int width = mRecyclerView.getChildAt(0).getWidth();
                 int padding = (mRecyclerView.getWidth() - width) / 2;

diff --git a/app/src/main/java/com/lsjwzh/widget/recyclerviewpagerdeomo/VerticalPagerActivity.java b/app/src/main/java/com/lsjwzh/widget/recyclerviewpagerdeomo/VerticalPagerActivity.java
@@ -19,7 +19,7 @@ protected void onCreate(Bundle savedInstanceState) {
     }
 
     protected void initViewPager() {
-        mRecyclerView = (RecyclerViewPager) findViewById(R.id.list);
+        mRecyclerView = (RecyclerViewPager) findViewById(R.id.viewpager);
 
         LinearLayoutManager layout = new LinearLayoutManager(this, LinearLayoutManager.VERTICAL,
                 false);
@@ -38,7 +38,7 @@ public void onScrollStateChanged(RecyclerView recyclerView, int scrollState) {
 
             @Override
             public void onScrolled(RecyclerView recyclerView, int i, int i2) {
-//                mPositionText.setText("First: " + mRecyclerView.getFirstVisiblePosition());
+//                mPositionText.setText("First: " + mRecyclerViewPager.getFirstVisiblePosition());
                 int childCount = mRecyclerView.getChildCount();
                 int width = mRecyclerView.getChildAt(0).getWidth();
                 int padding = (mRecyclerView.getWidth() - width) / 2;

diff --git a/app/src/main/res/layout/demo_loopviewpager.xml b/app/src/main/res/layout/demo_loopviewpager.xml
@@ -0,0 +1,28 @@
+<?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">
+    <EditText
+      android:id="@+id/target_position"
+      android:hint="Target Position"
+      android:inputType="number"
+      android:layout_width="match_parent"
+      android:layout_height="40dp"/>
+
+    <Button
+      android:id="@+id/scroll_to_target_position"
+      android:text="Scroll To Target Position"
+      android:layout_width="match_parent"
+      android:layout_height="50dp"/>
+
+    <com.lsjwzh.widget.recyclerviewpager.LoopRecyclerViewPager
+        android:id="@+id/viewpager"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_marginTop="20dp"
+        android:clipToPadding="false"
+        android:paddingTop="15dp"
+        android:paddingBottom="15dp"/>
+</LinearLayout>
diff --git a/app/src/main/res/layout/demo_vertical_viewpager.xml b/app/src/main/res/layout/demo_vertical_viewpager.xml
@@ -5,7 +5,7 @@
     android:layout_height="match_parent">
 
     <com.lsjwzh.widget.recyclerviewpager.RecyclerViewPager
-        android:id="@+id/list"
+        android:id="@+id/viewpager"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:layout_marginTop="20dp"

diff --git a/app/src/main/res/layout/layout_horizontal.xml b/app/src/main/res/layout/layout_horizontal.xml
@@ -6,7 +6,7 @@
     android:layout_height="match_parent">
 <com.lsjwzh.widget.recyclerviewpager.RecyclerViewPager
     android:layout_marginTop="20dp"
-    android:id="@+id/list"
+    android:id="@+id/viewpager"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:paddingLeft="30dp"

diff --git a/app/src/main/res/layout/layout_viewpager.xml b/app/src/main/res/layout/layout_viewpager.xml
@@ -5,7 +5,7 @@
     android:layout_height="match_parent">
 
     <android.support.v4.view.ViewPager
-        android:id="@+id/list"
+        android:id="@+id/viewpager"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:layout_marginTop="20dp"