如何将重力应用于线性布局中方向为水平的项目?

How to apply gravity to the items in Linear Layout, whose orientation is Horizontal?

我有一个父线性布局,其方向为 vertical,在此之下我有另一个布局,其方向为 vertical,它有一个子布局,其方向为 Horizontal .

此布局有 2 个 Image Views。 ,我想对这些图像 views.1 和 left-gravity 以及 1 right-gravity.

应用引力

当我将重力应用到此布局时,它不会产生任何效果,但如果我删除最后一个 horizontal 布局,它会完美地工作,但显示 1 个图像向上和 1 个向下。

这是我的代码,请指导我

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#b9000000"
    android:id="@+id/ll_black_overlay"
    >

   //There are 2 More layouts, whith weights 20 and 50

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="30"
        android:orientation="vertical"
        android:paddingTop="20dp"
        android:paddingLeft="70dp"
        android:paddingRight="70dp"
        >

        // Layout for displaying text messages Vertically

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:layout_gravity="center"

            >

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Text View 1 , "
                android:textColor="@color/white"
                android:layout_gravity="center"
                android:gravity="center"
                />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Text View 002 , "
                android:textColor="@color/white"
                android:layout_gravity="center"
                android:gravity="center"
                />


 </LinearLayout>

  // --Problem area Layout for displaying Images side by side,
      1 image at left corner, 1 at right corner, if i remove Linear layout,
      gravity works, but id is not working with Linear Layout 

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"

            >

            <ImageView
                android:layout_width="50dp"
                android:layout_height="50dp"
                android:src="@drawable/icn_tour_arrow_left"
                android:layout_gravity="left"
                />


            <ImageView
                android:layout_width="50dp"
                android:layout_height="50dp"
                android:src="@drawable/icn_tour_arrow_right"
                android:layout_gravity="right"
                />

        </LinearLayout>

    </LinearLayout>




</LinearLayout>

使用下面的布局。

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/ll_black_overlay"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#b9000000"
android:orientation="vertical">

//There are 2 More layouts, whith weights 20 and 50

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="30"
    android:orientation="vertical"
    android:paddingLeft="70dp"
    android:paddingRight="70dp"
    android:paddingTop="20dp">

    // Layout for displaying text messages Vertically

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:orientation="vertical"

        >

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:gravity="center"
            android:text="Text View 1 , "
            android:textColor="@color/white" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:gravity="center"
            android:text="Text View 002 , "
            android:textColor="@color/white" />


    </LinearLayout>

    // --Problem area Layout for displaying Images side by side,
    1 image at left corner, 1 at right corner, if i remove Linear layout,
    gravity works, but id is not working with Linear Layout

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:weightSum="2">

        <LinearLayout
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:gravity="left">

            <ImageView
                android:layout_width="50dp"
                android:layout_height="50dp"
                android:src="@mipmap/ic_launcher" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:gravity="right">

            <ImageView
                android:layout_width="50dp"
                android:layout_height="50dp"
                android:src="@mipmap/ic_launcher" />
        </LinearLayout>

    </LinearLayout>

</LinearLayout>

<LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"

        >

        <ImageView
            android:layout_width="0dp"
            android:layout_height="50dp"
            android:layout_weight="1"
            android:src="@drawable/icn_tour_arrow_left"
            android:layout_gravity="left"
            />


        <ImageView
            android:layout_width="0dp"
            android:layout_height="50dp"
            android:layout_weight="1"
            android:src="@drawable/icn_tour_arrow_right"
            android:layout_gravity="right"
            />

    </LinearLayout>

它会在屏幕上显示两个相等的图像 如果您希望两个图像都在角落,请在 layout_weight

的两个图像之间添加另一个文本视图

Just add LinearLayout with weight 1 in between ImageViews.

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

        <ImageView
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:src="@drawable/icn_tour_arrow_left"
            android:layout_gravity="left"/>
<LinearLayout
    android:layout_width="0dp"
    android:layout_height="match_parent"
    android:layout_weight="1"/>
        <ImageView
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:src="@drawable/icn_tour_arrow_right"
            android:layout_gravity="right"/>

    </LinearLayout>
</LinearLayout>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/ll_black_overlay"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#b9000000"
android:orientation="vertical">

<LinearLayout
    android:id="@+id/linearLayout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:gravity="center"
        android:text="Text View 1 , "
        android:textColor="@color/white" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:gravity="center"
        android:text="Text View 002 , "
        android:textColor="@color/white" />

</LinearLayout>

<ImageView
    android:id="@+id/imageView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentEnd="true"
    android:layout_alignParentRight="true"
    android:layout_below="@+id/linearLayout"
    android:src="@drawable/icn_tour_arrow_right" />

<ImageView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/linearLayout"
    android:layout_gravity="right"
    android:layout_toLeftOf="@+id/imageView"
    android:layout_toStartOf="@+id/imageView"
    android:src="@drawable/icn_tour_arrow_left"/>