两个布局中的两个textview

时间：2016-05-02 02:34:27

标签： android layout

我希望垂直并排放置两个相对布局，并在每个布局中放置一个文本视图。我希望每个布局占据屏幕的一半（因此我使用了android：layout_weight =＆＃34; 50＆＃34;。这是主要活动的xml代码：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="helloworld3.myapplication.MainActivity">

    <RelativeLayout
        android:id="@+id/view1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="50"
        android:paddingBottom="@dimen/activity_vertical_margin"
        android:paddingLeft="@dimen/activity_horizontal_margin"
        android:paddingRight="@dimen/activity_horizontal_margin"
        android:paddingTop="@dimen/activity_vertical_margin"
        tools:context="helloworld3.myapplication.MainActivity">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Hello World 1!" />
    </RelativeLayout>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="50"
        android:paddingBottom="@dimen/activity_vertical_margin"
        android:paddingLeft="@dimen/activity_horizontal_margin"
        android:paddingRight="@dimen/activity_horizontal_margin"
        android:paddingTop="@dimen/activity_vertical_margin"
        android:layout_below="@id/view1"
        tools:context="helloworld3.myapplication.MainActivity">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Hello World 2!" />
    </RelativeLayout>
</RelativeLayout>

但结果只显示第一个文本视图＆＃34; Hello world 1！＆＃34;并且它不会显示第二个，Hello world 2！有人可以帮忙吗？

7 个答案:

答案 0 :(得分：0)

如果你想让2个TextViews成为另一个的顶部，每个屏幕取1/2，只需使用垂直方向的LinearLayout：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:text="Text 1"/>

    <TextView
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:text="Text 2"/>

</LinearLayout>

如果你不希望TextViews的高度为1/2，你可以将它们包装在FrameLayout中：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Text 1" />

    </FrameLayout>

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Text 2" />

    </FrameLayout>

</LinearLayout>

答案 1 :(得分：0)

为什么不使用水平线性布局并将每个文本视图的权重调整为.5，并将textview的重力设置为您想要的位置

答案 2 :(得分：0)

RelativeLayout match_parent和layout_width

设置为layout_height

您需要将其中一个设置为0dp layout_weight才能生效。父母也应该更改为LinearLayout。顺便说一下layout_weight值不应该是重要的，只要它们是相等的：见下文

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="helloworld3.myapplication.MainActivity">

<RelativeLayout
    android:id="@+id/view1"
    android:layout_width="0dp"
    android:layout_height="match_parent"
    android:layout_weight="1"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="helloworld3.myapplication.MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World 1!" />
</RelativeLayout>

<RelativeLayout
    android:layout_width="0dp"
    android:layout_height="match_parent"
    android:layout_weight="1"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:layout_below="@id/view1"
    tools:context="helloworld3.myapplication.MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World 2!" />
</RelativeLayout>

答案 3 :(得分：0)

如果你想将屏幕分成两半。你不必将layout_weight设置为50.只需将layout_height（因为你想垂直划分屏幕）设置为 0dp ，然后android会做你想要的而不考虑RelativeLayout的身高。<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context="demo.drawable.propertyanimationdemo.HalfLayoutActivity"> <RelativeLayout android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" android:background="@android:color/holo_orange_light"></RelativeLayout> <RelativeLayout android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" android:background="@android:color/holo_blue_dark"></RelativeLayout> </LinearLayout> 所以它可能是这样的：

 import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;

import java.util.Calendar;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);




        Calendar calendar = Calendar.getInstance();

        calendar.set(Calendar.HOUR_OF_DAY,1);
        calendar.set(Calendar.MINUTE,12);
        calendar.set(Calendar.SECOND, 0);

        Intent intent = new Intent(getApplicationContext(),Notification_reciever.class);

        PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 100, intent, PendingIntent.FLAG_UPDATE_CURRENT);

        AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
        alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,calendar.getTimeInMillis(),AlarmManager.INTERVAL_DAY,pendingIntent);




    }

}

答案 4 :(得分：0)

使用线性布局（水平）

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

<TextView
    android:layout_width="match_parent"
    android:layout_height="0sp"
    android:layout_weight="1"
    android:text="Demo 1"/>

<TextView
    android:layout_width="match_parent"
    android:layout_height="0sp"
    android:layout_weight="1"
    android:text="Demo 2"/></LinearLayout>

答案 5 :(得分：0)

Just add weight sum in parent layout and change its from Relative to Linear       
layout . Also In Child layout like two relative one add layout height to  
0dp below is updated code

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:weightSum="100">

<RelativeLayout
android:id="@+id/view1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="50"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin">

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World 1!" />
</RelativeLayout>

<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_below="@id/view1"
android:layout_weight="50"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin">

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World 2!" />
</RelativeLayout>
</LinearLayout>

答案 6 :(得分：0)

首先，我建议你为此使用线性布局。线性布局可以根据给定的权重轻松划分屏幕。

以下是适合您问题的示例。

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
tools:context="helloworld3.myapplication.MainActivity">

<RelativeLayout
    android:layout_width="0dp"
    android:layout_height="match_parent"
    android:layout_weight="1">

    <TextView
        android:id="@+id/textView11"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentStart="true"
        android:layout_alignParentTop="true"
        android:text="view 1"
        android:textAppearance="?android:attr/textAppearanceMedium" />
</RelativeLayout>

<RelativeLayout
    android:layout_width="0dp"
    android:layout_height="match_parent"
    android:layout_weight="1">

    <TextView
        android:id="@+id/textView12"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentStart="true"
        android:layout_alignParentTop="true"
        android:text="view 2"
        android:textAppearance="?android:attr/textAppearanceMedium" />
</RelativeLayout>
</LinearLayout>

将此应用到您自己的布局中，您将获得所需的内容。确实它是否适合你。接受答案作为正确答案。

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