ConstraintLayout的基本使用

最新推荐文章于 2025-09-09 18:11:46 发布
转载最新推荐文章于 2025-09-09 18:11:46 发布 · 65 阅读
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原文链接：https://my.oschina.net/sfshine/blog/3026169
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#移动开发 #python
博客转载了一则信息，提到2019年独角兽企业重金招聘Python工程师，给出了相关招聘标准的原文链接。
2019独角兽企业重金招聘Python工程师标准>>>
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".MainActivity">
    <android.support.constraint.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">
        <ImageView
                app:layout_constraintDimensionRatio="W,15:20"
                android:id="@+id/iv"
                android:background="#FF0000"
                android:src="@drawable/ic_action_share"
                android:layout_width="100dp"
                android:layout_height="0dp"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintTop_toTopOf="parent"/>

        <TextView
                android:background="#FF00FF"
                android:id="@+id/title"
                android:textSize="20dp"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:text="Hello World!"
                app:layout_constraintLeft_toRightOf="@id/iv"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintTop_toTopOf="@id/iv"/>
        <TextView
                android:background="#FFFF00"
                android:id="@+id/content"
                android:layout_width="0dp"
                android:layout_height="0dp"
                android:text="Hello World!"
                app:layout_constraintTop_toBottomOf="@id/title"
                app:layout_constraintLeft_toRightOf="@id/iv"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintBottom_toBottomOf="@id/iv"/>
    </android.support.constraint.ConstraintLayout>

    <android.support.constraint.ConstraintLayout
            android:layout_marginBottom="10dp"
            app:layout_constraintBottom_toTopOf="@id/tab_host"
            android:layout_width="match_parent"
            android:background="#EEFF00"
            android:layout_height="80dp">

        <TextView
                app:layout_constraintHorizontal_chainStyle="packed"
                android:background="#FF00FF"
                android:id="@+id/n_tab1"
                android:textSize="20dp"
                android:text="我的"
                android:gravity="center"
                android:layout_width="120dp"
                android:layout_height="wrap_content"
                app:layout_constraintHorizontal_weight="1"
                app:layout_constraintTop_toTopOf="parent"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintRight_toLeftOf="@id/n_tab2"
        />
        <TextView
                app:layout_constraintHorizontal_chainStyle="packed"
                android:background="#8800FF"
                android:id="@+id/n_tab2"
                android:textSize="20dp"
                android:text="发现"
                android:gravity="center"
                android:layout_width="120dp"
                android:layout_height="wrap_content"
                app:layout_constraintHorizontal_weight="1"
                app:layout_constraintTop_toTopOf="parent"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintLeft_toRightOf="@id/n_tab1"
                app:layout_constraintRight_toLeftOf="@id/n_tab3"
        />
        <TextView
                app:layout_constraintHorizontal_chainStyle="packed"
                android:background="#00FF00"
                android:id="@+id/n_tab3"
                android:textSize="20dp"
                android:text="个人中心"
                android:gravity="center"
                android:layout_width="120dp"
                android:layout_height="wrap_content"
                app:layout_constraintHorizontal_weight="1"
                app:layout_constraintTop_toTopOf="parent"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintLeft_toRightOf="@id/n_tab2"
        />
    </android.support.constraint.ConstraintLayout>

    <android.support.constraint.ConstraintLayout
            app:layout_constraintBottom_toBottomOf="parent"
            android:layout_width="match_parent"
            android:background="#EEFFEE"
            android:id="@+id/tab_host"
            android:layout_height="80dp">

        <TextView
                android:background="#FF00FF"
                android:id="@+id/tab1"
                android:textSize="20dp"
                android:text="我的"
                android:gravity="center"
                android:layout_width="0dp"
                android:layout_height="0dp"
                app:layout_constraintHorizontal_weight="1"
                app:layout_constraintVertical_weight="1"
                app:layout_constraintTop_toTopOf="parent"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintRight_toLeftOf="@id/tab2"
        />
        <TextView
                android:background="#8800FF"
                android:id="@+id/tab2"
                android:textSize="20dp"
                android:text="发现"
                android:gravity="center"
                android:layout_width="0dp"
                android:layout_height="0dp"
                app:layout_constraintHorizontal_weight="1"
                app:layout_constraintVertical_weight="1"
                app:layout_constraintTop_toTopOf="parent"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintLeft_toRightOf="@id/tab1"
                app:layout_constraintRight_toLeftOf="@id/tab3"
        />
        <TextView
                android:background="#00FF00"
                android:id="@+id/tab3"
                android:textSize="20dp"
                android:text="个人中心"
                android:gravity="center"
                android:layout_width="0dp"
                android:layout_height="0dp"
                app:layout_constraintHorizontal_weight="1"
                app:layout_constraintVertical_weight="1"
                app:layout_constraintTop_toTopOf="parent"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintLeft_toRightOf="@id/tab2"
        />
    </android.support.constraint.ConstraintLayout>

    <TextView
            android:background="#00FF00"
            android:id="@+id/float_view"
            android:textSize="20dp"
            android:text="浮动按钮"
            android:gravity="center"
            android:layout_width="60dp"
            android:layout_height="60dp"
            app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintRight_toRightOf="parent"
            app:layout_constraintVertical_bias="0.3"
            app:layout_constraintHorizontal_bias="0.05"
    />
</android.support.constraint.ConstraintLayout>
转载于:https://my.oschina.net/sfshine/blog/3026169