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				@@ -1,9 +1,9 @@ 
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				 <?xml version="1.0" encoding="utf-8"?> 
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				 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
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				     xmlns:app="http://schemas.android.com/apk/res-auto" 
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				+    xmlns:tools="http://schemas.android.com/tools" 
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				     android:layout_width="match_parent" 
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				-    android:layout_height="wrap_content" 
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				-    xmlns:tools="http://schemas.android.com/tools"> 
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				+    android:layout_height="wrap_content"> 
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				     <androidx.constraintlayout.widget.ConstraintLayout 
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				         android:layout_width="match_parent" 
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				@@ -21,30 +21,35 @@ 
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				             app:layout_constraintTop_toTopOf="parent" 
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				             app:qmui_corner_radius="5dp" /> 
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				-         <TextView 
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				-             android:id="@+id/course_name" 
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				-             android:textColor="@color/white" 
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				-             android:textSize="@dimen/sp_9" 
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				-             android:gravity="center" 
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				-             android:layout_marginLeft="@dimen/dp_5" 
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				-             android:layout_marginTop="@dimen/dp_7" 
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				-             android:background="@drawable/gray_1_radius_bg" 
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				-             app:layout_constraintLeft_toLeftOf="@+id/im_pic" 
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				-             app:layout_constraintTop_toTopOf="@+id/im_pic" 
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				-             android:paddingRight="@dimen/dp_4" 
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				-             android:paddingLeft="@dimen/dp_4" 
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				-             android:layout_width="wrap_content" 
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				-             android:layout_height="@dimen/dp_13"/> 
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				         <TextView 
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				-            android:id="@+id/tv_title" 
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				+            android:id="@+id/course_name" 
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				             android:layout_width="wrap_content" 
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				+            android:layout_height="@dimen/dp_13" 
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				+            android:layout_marginLeft="@dimen/dp_5" 
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				+            android:layout_marginTop="@dimen/dp_7" 
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				+            android:background="@drawable/gray_1_radius_bg" 
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				+            android:gravity="center" 
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				+            android:paddingLeft="@dimen/dp_4" 
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				+            android:paddingRight="@dimen/dp_4" 
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				+            android:textColor="@color/white" 
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				+            android:textSize="@dimen/sp_9" 
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				+            app:layout_constraintLeft_toLeftOf="@+id/im_pic" 
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				+            app:layout_constraintTop_toTopOf="@+id/im_pic" /> 
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				+ 
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				+        <TextView 
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				+            android:id="@+id/tv_title" 
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				+            android:layout_width="0dp" 
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				             android:layout_height="wrap_content" 
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				             android:layout_marginLeft="11dp" 
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				+            android:layout_marginTop="5dp" 
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				+            android:layout_marginEnd="11dp" 
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				+            android:includeFontPadding="false" 
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				             android:lines="1" 
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				             android:text="从零开始学竖笛视频课" 
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				             android:textColor="@color/color_1a1a1a" 
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				             android:textSize="@dimen/sp_14" 
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				             app:layout_constraintLeft_toLeftOf="parent" 
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				+            app:layout_constraintRight_toRightOf="parent" 
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				             app:layout_constraintTop_toBottomOf="@+id/im_pic" /> 
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				         <de.hdodenhof.circleimageview.CircleImageView 
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				@@ -60,15 +65,46 @@ 
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				         <TextView 
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				             android:id="@+id/tv_teacher_name" 
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				-            android:layout_width="wrap_content" 
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				+            android:layout_width="0dp" 
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				             android:layout_height="wrap_content" 
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				             android:layout_marginLeft="6dp" 
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				-            tools:text="李老师" 
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				+            android:ellipsize="end" 
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				+            android:maxLines="1" 
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				             android:textColor="@color/color_999999" 
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				             android:textSize="@dimen/sp_12" 
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				             app:layout_constraintBottom_toBottomOf="@+id/im_header" 
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				             app:layout_constraintLeft_toRightOf="@+id/im_header" 
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				-            app:layout_constraintTop_toTopOf="@+id/im_header" /> 
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				+            app:layout_constraintRight_toLeftOf="@+id/view_line2" 
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				+            app:layout_constraintTop_toTopOf="@+id/im_header" 
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				+            tools:text="李老师李老师李老师李老师李老师李老师李老师李老师李老师李老师" /> 
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				+ 
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				+        <View 
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				+            android:id="@+id/view_line2" 
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				+            android:layout_width="1dp" 
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				+            android:layout_height="11dp" 
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				+            android:layout_marginStart="6dp" 
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				+            android:background="@color/color_d3d3d3" 
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				+            android:visibility="visible" 
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				+            app:layout_constraintBottom_toBottomOf="@+id/tv_teacher_name" 
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				+            app:layout_constraintLeft_toRightOf="@+id/tv_teacher_name" 
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				+            app:layout_constraintRight_toLeftOf="@+id/tv_buy_num" 
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				+            app:layout_constraintTop_toTopOf="@+id/tv_teacher_name" /> 
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				+ 
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				+        <TextView 
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				+            android:id="@+id/tv_buy_num" 
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				+            android:layout_width="0dp" 
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				+            android:layout_height="wrap_content" 
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				+            android:layout_marginStart="6dp" 
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				+            android:includeFontPadding="false" 
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				+            android:text="0人已购买" 
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				+            android:textColor="@color/color_ff802c" 
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				+            android:textSize="@dimen/sp_11" 
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				+            android:visibility="visible" 
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				+            app:layout_constraintBottom_toBottomOf="@+id/view_line2" 
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				+            app:layout_constraintLeft_toRightOf="@+id/view_line2" 
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				+            app:layout_constraintRight_toRightOf="parent" 
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				+            app:layout_constraintTop_toTopOf="@+id/view_line2" 
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				+            tools:text="6人已购买" /> 
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				         <TextView 
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				             android:id="@+id/tv_price" 
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