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dragfooterview's Introduction

开源地址:https://github.com/open-android/DragFooterView 一个向左拖拽跳转至更多页面的通用控件

demo

inspiration

  • 详细的使用方法在DEMO里面都演示啦,如果你觉得这个库还不错,请赏我一颗star吧~~~

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自定义你自己的Footer效果  

作为一个library,当然不能只支持以上那一种效果啦,所以,这个库的 Footer应该是可定制的,可插拔的。定制Footer只需定义一个继承自 BaseFooterDrawer的类,然后在参数中提供的区域中绘制即可,而其余 的事件分发,拦截都不需要关心。以下是我自己定制的两种Footer效果。

custom2

custom1

使用步骤

1. 在project的build.gradle添加如下代码(如下图)

allprojects {
    repositories {
        ...
        maven { url "https://jitpack.io" }
    }
}

2. 在Module的build.gradle添加依赖

compile 'com.github.open-android:DragFooterView:0.1.0'

用法

1、在xml中配置如下 (注意:DragContainer只能有一个子View),RecyclerView向左拖拽

    <com.fangxu.library.DragContainer
        android:id="@+id/drag_recycler_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10dp">

        <android.support.v7.widget.RecyclerView
            android:id="@+id/recycler_view"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@android:color/white" />
    </com.fangxu.library.DragContainer>

2、在java类中添加事件监听器DragListener

    DragContainer dragContainer = (DragContainer) findViewById(R.id.drag_recycler_view);
    
    //若需使用自己定制的footer,需要调用DragContainer的setFooterDrawer方法设置定制的footer类,如下
    dragContainer.setFooterDrawer(new ArrowPathFooterDrawer.Builder(this, 0xff444444).setPathColor(0xffffffff).build());
    
    dragContainer.setDragListener(new DragListener() {
        @Override
        public void onDragEvent() {
            //do whatever you want,for example skip to the load more Activity.
            Intent intent = new Intent(HomeActivity.this, ShowMoreActivity.class);
            startActivity(intent);
        }
    });
    @Override
    public void onDragEvent() {
        Intent intent = new Intent(HomeActivity.this, ShowMoreActivity.class);
        startActivity(intent);
    }

属性

attribute value type defalut value description
dc_footer_color color 0xffcdcdcd footer view的背景颜色
dc_reset_animator_duration integer 700 松开拖拽后复位动画的时长
dc_drag_damp float 0.5f 拖拽阻尼系数,取值在(0,1]之间,取值越小,阻尼越大
  • 细节注意: //若需使用自己定制的footer,需要调用DragContainer的setFooterDrawer方法设置定制的footer类,如下    dragContainer.setFooterDrawer(new ArrowPathFooterDrawer.Builder(this, 0xff444444).setPathColor(0xffffffff).build());

其他控件用法 (HorizontalScrollView用法)

<com.fangxu.library.DragContainer
               android:id="@+id/drag_scroll_view"
               android:layout_width="match_parent"
               android:layout_height="wrap_content"
               android:layout_marginLeft="10dp"
               app:dc_reset_animator_duration="500">

               <HorizontalScrollView
                   android:id="@+id/scroll_view"
                   android:layout_width="match_parent"
                   android:layout_height="wrap_content"
                   android:background="@android:color/white"
                   android:scrollbars="none">

                   <LinearLayout
                       android:id="@+id/linear_layout"
                       android:layout_width="match_parent"
                       android:layout_height="170dp"
                       android:orientation="horizontal" />

               </HorizontalScrollView>

           </com.fangxu.library.DragContainer> 
 private void setupHorizontalScrollView() {
        LinearLayout linearLayout = (LinearLayout) findViewById(R.id.linear_layout);
        for (int i = 10; i < 20; i++) {
            ImageView imageView = new ImageView(this);
            LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(dp2px(120), ViewGroup.LayoutParams.MATCH_PARENT);
            params.leftMargin = 0;
            params.rightMargin = dp2px(5);
            imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
            imageView.setLayoutParams(params);
            linearLayout.addView(imageView);
            Glide.with(this).load(Constants.urls[i]).into(imageView);
        }

        DragContainer dragContainer = (DragContainer) findViewById(R.id.drag_scroll_view);
        BaseFooterDrawer drawer = new com.fangxu.dragfooterview.customfooters.ArrowPathFooterDrawer.Builder(this, 0xff444444).setPathColor(0xffffffff).build();
        dragContainer.setFooterDrawer(drawer);
        dragContainer.setDragListener(this);
    }

(ImageView用法)

<com.fangxu.library.DragContainer
               android:id="@+id/drag_image_view"
               android:layout_width="wrap_content"
               android:layout_height="wrap_content"
               android:layout_marginLeft="10dp"
               app:dc_drag_damp="0.66"
               app:dc_reset_animator_duration="500">

               <ImageView
                   android:id="@+id/image_view"
                   android:layout_width="150dp"
                   android:layout_height="200dp"
                   android:scaleType="centerCrop" />

           </com.fangxu.library.DragContainer>
 private void setupImageView() {
       ImageView imageView = (ImageView) findViewById(R.id.image_view);
       Glide.with(this).load(Constants.urls[0]).into(imageView);

       DragContainer dragContainer = (DragContainer) findViewById(R.id.drag_image_view);
       dragContainer.setFooterDrawer(new BezierFooterDrawer.Builder(this, 0xffffc000).setIconDrawable(getResources().getDrawable(R.drawable.left)).build());
       dragContainer.setDragListener(this);
   }

(TextView, Button用法)

  
   <LinearLayout
               android:layout_width="match_parent"
               android:layout_height="wrap_content"
               android:layout_marginBottom="20dp"
               android:orientation="horizontal">

               <com.fangxu.library.DragContainer
                   android:id="@+id/drag_text_view"
                   android:layout_width="0dp"
                   android:layout_height="wrap_content"
                   android:layout_marginLeft="10dp"
                   android:layout_marginRight="10dp"
                   android:layout_weight="1"
                   app:dc_reset_animator_duration="500">

                   <TextView
                       android:id="@+id/text_view"
                       android:layout_width="match_parent"
                       android:layout_height="80dp"
                       android:background="#66ee66"
                       android:gravity="center"
                       android:scaleType="centerCrop"
                       android:text="TextView" />

               </com.fangxu.library.DragContainer>

               <com.fangxu.library.DragContainer
                   android:id="@+id/drag_button"
                   android:layout_width="0dp"
                   android:layout_height="wrap_content"
                   android:layout_marginLeft="10dp"
                   android:layout_weight="1"
                   app:dc_reset_animator_duration="500">

                   <Button
                       android:id="@+id/button"
                       android:layout_width="match_parent"
                       android:layout_height="80dp"
                       android:background="#ff6600"
                       android:scaleType="centerCrop"
                       android:text="Button" />

               </com.fangxu.library.DragContainer>

           </LinearLayout>
private void setupTextView() {
       DragContainer dragContainer = (DragContainer) findViewById(R.id.drag_text_view);
       dragContainer.setDragListener(this);
   }

   private void setupButton() {
       Button button = (Button) findViewById(R.id.button);
       button.setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               Toast.makeText(HomeActivity.this, "onClick", Toast.LENGTH_SHORT).show();
           }
       });
       button.setOnLongClickListener(new View.OnLongClickListener() {
           @Override
           public boolean onLongClick(View v) {
               Toast.makeText(HomeActivity.this, "onLongClick", Toast.LENGTH_SHORT).show();
               return true;
           }
       });

       DragContainer dragContainer = (DragContainer) findViewById(R.id.drag_button);
       dragContainer.setDragListener(this);
   }
       

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