2017-07-02 102 views
0

我一直在使用ConstraintLayout一段時間,到目前爲止一直喜歡它,但遇到了佈局對齊的問題。以下是我有:如何將我的TextView與ConstraintLayout中的其他視圖對齊?

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你看有文字要求的時間,我想,這種觀點總是將低於LinearLayout就是它以上)TextView以及低於額定值酒吧在右邊。爲此,我已將其上部錨定點錨定到LinearLayout,但似乎沒有辦法將它限制在右側的評級欄下方。我的意思是,我只能在每條邊上放一個約束嗎?

請注意,我也不能假定關於LinearLayout的高度總是大於或小於(圖像視圖+評級欄)的高度。因此,更多的是二者的深度的觀點應的請求的時間TextView

的最終位置的決定因素作爲參考,在此以上的佈局文件:

<?xml version="1.0" encoding="utf-8"?> 
<android.support.constraint.ConstraintLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:app="http://schemas.android.com/apk/res-auto" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:orientation="vertical" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:layout_marginTop="4dp" 
    android:layout_marginBottom="4dp" 
    android:layout_marginLeft="8dp" 
    android:layout_marginStart="8dp" 
    android:layout_marginRight="8dp" 
    android:layout_marginEnd="8dp" 
    android:background="@color/lightGrey" 
    android:id="@+id/constraintLayout"> 


    <LinearLayout 
     android:layout_width="0dp" 
     android:layout_height="wrap_content" 
     android:orientation="vertical" 
     app:layout_constraintTop_toTopOf="parent" 
     android:layout_marginLeft="16dp" 
     android:layout_marginStart="16dp" 
     android:layout_marginTop="16dp" 
     app:layout_constraintLeft_toLeftOf="parent" 
     app:layout_constraintRight_toLeftOf="@+id/guideline" 
     android:layout_marginRight="8dp" 
     android:layout_marginEnd="8dp" 
     app:layout_constraintHorizontal_bias="0.0" 
     android:id="@+id/linearLayout" 
     tools:layout_editor_absoluteY="16dp"> 

     <TextView 
      android:text="@string/tutor_name" 
      android:textStyle="bold" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:id="@+id/tutor_name"/> 

     <TextView 
      android:text="@string/tutor_skill_set" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_marginTop="12dp" 
      android:id="@+id/skill_set"/> 

     <TextView 
      android:text="@string/tutor_types" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_marginTop="12dp" 
      android:id="@+id/tutor_types" /> 

     <TextView 
      android:text="@string/tutor_location" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:id="@+id/location" 
      android:layout_marginTop="12dp" /> 

    </LinearLayout> 


    <ImageView 
     android:id="@+id/display_pic" 
     android:layout_width="80dp" 
     android:layout_height="80dp" 
     android:layout_alignParentEnd="true" 
     android:layout_alignParentRight="true" 
     android:layout_marginEnd="16dp" 
     android:layout_marginLeft="8dp" 
     android:layout_marginRight="16dp" 
     android:layout_marginStart="8dp" 
     android:layout_marginTop="16dp" 
     android:adjustViewBounds="false" 
     android:scaleType="centerCrop" 
     app:layout_constraintHorizontal_bias="1.0" 
     app:layout_constraintLeft_toLeftOf="@+id/guideline" 
     app:layout_constraintRight_toRightOf="parent" 
     app:layout_constraintTop_toTopOf="parent" 
     app:srcCompat="@android:color/holo_red_light" /> 

    <com.iarcuschin.simpleratingbar.SimpleRatingBar 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:id="@+id/tutor_rating" 
     android:layout_below="@+id/display_pic" 
     android:layout_alignParentRight="true" 
     android:layout_alignParentEnd="true" 
     app:srb_starSize="13dp" 
     app:srb_numberOfStars="5" 
     app:srb_borderColor="@color/colorAccent" 
     app:srb_fillColor="@color/colorPrimary" 
     app:srb_starBorderWidth="1" 
     app:srb_isIndicator="true" 
     app:layout_constraintRight_toRightOf="@+id/display_pic" 
     android:layout_marginTop="8dp" 
     app:layout_constraintTop_toBottomOf="@+id/display_pic" 
     android:layout_marginLeft="8dp" 
     android:layout_marginStart="8dp" 
     app:layout_constraintLeft_toLeftOf="@+id/guideline" 
     app:layout_constraintHorizontal_bias="1.0" /> 

    <android.support.constraint.Guideline 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:id="@+id/guideline" 
     android:orientation="vertical" 
     app:layout_constraintGuide_percent="0.6796875" /> 

    <TextView 
     android:id="@+id/tutor_requested_time" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="Requested time" 
     android:textStyle="italic" 
     android:layout_marginStart="32dp" 
     android:layout_marginLeft="32dp" 
     tools:layout_editor_absoluteX="30dp" 
     android:layout_marginTop="47dp" 
     app:layout_constraintTop_toBottomOf="@+id/linearLayout" /> 


</android.support.constraint.ConstraintLayout> 

一個半溶液,我試圖和工作(沒有真正雖然):

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:app="http://schemas.android.com/apk/res-auto" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:layout_marginTop="4dp" 
    android:layout_marginBottom="4dp" 
    android:layout_marginLeft="8dp" 
    android:layout_marginStart="8dp" 
    android:layout_marginRight="8dp" 
    android:layout_marginEnd="8dp" 
    android:background="@color/lightGrey"> 


    <android.support.constraint.ConstraintLayout 
     android:orientation="vertical" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_marginBottom="10dp" 
     android:paddingBottom="10dp" 
     android:elevation="2dp" 
     android:id="@+id/constraintLayout"> 


     <LinearLayout 
      android:layout_width="0dp" 
      android:layout_height="wrap_content" 
      android:orientation="vertical" 
      app:layout_constraintTop_toTopOf="parent" 
      android:layout_marginLeft="16dp" 
      android:layout_marginStart="16dp" 
      android:layout_marginTop="16dp" 
      app:layout_constraintLeft_toLeftOf="parent" 
      app:layout_constraintRight_toLeftOf="@+id/guideline" 
      android:layout_marginRight="8dp" 
      android:layout_marginEnd="8dp" 
      app:layout_constraintHorizontal_bias="0.0" 
      android:id="@+id/linearLayout" 
      tools:layout_editor_absoluteY="16dp"> 

      <TextView 
       android:text="@string/tutor_name" 
       android:textStyle="bold" 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:id="@+id/tutor_name"/> 

      <TextView 
       android:text="@string/tutor_skill_set" 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:layout_marginTop="12dp" 
       android:id="@+id/skill_set"/> 

      <TextView 
       android:text="@string/tutor_types" 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:layout_marginTop="12dp" 
       android:id="@+id/tutor_types" /> 

      <TextView 
       android:text="@string/tutor_location" 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:id="@+id/location" 
       android:layout_marginTop="12dp" /> 

     </LinearLayout> 


     <ImageView 
      android:id="@+id/display_pic" 
      android:layout_width="80dp" 
      android:layout_height="80dp" 
      android:layout_alignParentEnd="true" 
      android:layout_alignParentRight="true" 
      android:layout_marginEnd="16dp" 
      android:layout_marginLeft="8dp" 
      android:layout_marginRight="16dp" 
      android:layout_marginStart="8dp" 
      android:layout_marginTop="16dp" 
      android:adjustViewBounds="false" 
      android:scaleType="centerCrop" 
      app:layout_constraintHorizontal_bias="1.0" 
      app:layout_constraintLeft_toLeftOf="@+id/guideline" 
      app:layout_constraintRight_toRightOf="parent" 
      app:layout_constraintTop_toTopOf="parent" 
      app:srcCompat="@android:color/holo_red_light" /> 

     <com.iarcuschin.simpleratingbar.SimpleRatingBar 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:id="@+id/tutor_rating" 
      android:layout_below="@+id/display_pic" 
      android:layout_alignParentRight="true" 
      android:layout_alignParentEnd="true" 
      app:srb_starSize="13dp" 
      app:srb_numberOfStars="5" 
      app:srb_borderColor="@color/colorAccent" 
      app:srb_fillColor="@color/colorPrimary" 
      app:srb_starBorderWidth="1" 
      app:srb_isIndicator="true" 
      app:layout_constraintRight_toRightOf="@+id/display_pic" 
      android:layout_marginTop="8dp" 
      app:layout_constraintTop_toBottomOf="@+id/display_pic" 
      android:layout_marginLeft="8dp" 
      android:layout_marginStart="8dp" 
      app:layout_constraintLeft_toLeftOf="@+id/guideline" 
      app:layout_constraintHorizontal_bias="1.0" /> 

     <android.support.constraint.Guideline 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:id="@+id/guideline" 
      android:orientation="vertical" 
      app:layout_constraintGuide_percent="0.6796875" /> 


    </android.support.constraint.ConstraintLayout> 


    <TextView 
     android:id="@+id/tutor_requested_time" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginLeft="32dp" 
     android:text="Requested time" 
     android:textStyle="italic" 
     android:layout_marginStart="32dp" 
     android:layout_marginBottom="8dp" 
     android:layout_below="@+id/constraintLayout" /> 


</RelativeLayout> 

解決方案有我貼有沒有解答一個問題其自身的問題:Color of TextView shows as white on a real device with ConstraintLayout

而且,它也是一種違背了使用ConstraintLayout本身的目的...

是這樣,那麼任何人都知道/有解決方案/上述問題的想法?

+0

爲什麼不添加另一個約束佈局作爲你的'LinearLayout'和'RatingBar'的父項? –

+0

@KingfisherPhuoc:我做了這樣的事,那就是我的半解決方案。這有它自己的問題。如果你能回答這些問題,請看鏈接的問題。 –

+0

這裏有一個很好的教程,在這裏:https://constraintlayout.com/basics/barriers.html。您感興趣的視圖是「屏障」:https://developer.android.com/reference/android/support/constraint/Barrier.html –

回答

0

ConstraintLayout的新功能叫Barrier是您的答案。請參閱this accepted answer「帶障礙的約束佈局;如何根據大小約束障礙底部/頂部」有關如何執行此操作。

+0

是的,用它。謝謝。進入另一個主要問題:https://stackoverflow.com/questions/44847361/color-of-textview-shows-as-white-on-a-real-device-with-constraintlayout –

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