TextInputLayout EditText计数器在LinearLayout中的屏幕外运行

时间:2016-02-16 02:43:56

标签: android

我正在尝试让我的EditText占据屏幕顶部工具栏和底部宽提交按钮之间剩余的空白区域。

然而,当我对match_parent使用EditText时,计数器会在屏幕外运行(最后在按钮后面)。我似乎无法弄清楚如何展示它。

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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="match_parent"
    android:orientation="vertical"
    tools:context="com.myapp.app.PostActivity">


    <android.support.design.widget.AppBarLayout
        android:id="@+id/appBarLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            android:overScrollMode="never"
            app:popupTheme="@style/AppTheme.PopupOverlay" />

    </android.support.design.widget.AppBarLayout>


    <LinearLayout
        android:id="@+id/textLinearLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:orientation="vertical"
        android:paddingLeft="@dimen/activity_horizontal_margin"
        android:paddingRight="@dimen/activity_horizontal_margin"
        >

        <android.support.design.widget.TextInputLayout
            android:id="@+id/textContainer"
            android:layout_width="match_parent"
            android:layout_height="match_parent"

            android:scrollbars="vertical"
            app:counterEnabled="true"
            app:counterMaxLength="300">

            <EditText
                android:id="@+id/EditText"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:background="#00000000"
                android:gravity="top|left"
                android:inputType="textMultiLine|textCapSentences"
                android:maxLength="300"
                android:scrollbars="vertical"/>

        </android.support.design.widget.TextInputLayout>

    </LinearLayout>


    <LinearLayout
        android:id="@+id/submitArea"
        android:layout_width="match_parent"
        android:layout_height="60dp"
        android:orientation="horizontal">

        <Button
            android:id="@+id/postButton"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:text="Submit" />
    </LinearLayout

</LinearLayout>

现在看来是这样的:

enter image description here

以下是我希望它的样子(右下方的0/300计数器):

enter image description here

2 个答案:

答案 0 :(得分:1)

尝试以下更新的布局xml代码:

#include <stdio.h>
#include <stdlib.h>

void main()
{
    int testNums[] = {3, 0x12, 0xFF, -3};
    int testBits[] = {9, 7, 12, 15};
    int i;

    for (i = 0; i < sizeof(testNums) / sizeof(testNums[0]); i++)
        printBin(testNums[i], testBits[i]);
}

void printBin(int num, int bits)
{
    int pow;
    int mask = 1 << bits - 1;

    for(pow=0; pow<bits; pow++)
    {
        if(mask & num)
            printf("1");
        else
            printf("0");
        num<<1;
    }
    printf("\n");
}

<强>输出:

enter image description here

我希望它会帮助你。

答案 1 :(得分:1)

尝试使用RelativeLayout,认为问题出在布局上:

<?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="match_parent"
tools:context="com.myapp.app.PostActivity">

<android.support.design.widget.AppBarLayout
    android:id="@+id/appBarLayout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:theme="@style/AppTheme.AppBarOverlay">

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="?attr/colorPrimary"
        android:overScrollMode="never"
        app:popupTheme="@style/AppTheme.PopupOverlay" />

</android.support.design.widget.AppBarLayout>


<LinearLayout
    android:id="@+id/textLinearLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_below="@id/appBarLayout"
    android:layout_above="@id/submitArea"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    >

    <android.support.design.widget.TextInputLayout
        android:id="@+id/textContainer"
        android:layout_width="match_parent"
        android:layout_height="match_parent"

        android:scrollbars="vertical"
        app:counterEnabled="true"
        app:counterMaxLength="300">

        <EditText
            android:id="@+id/EditText"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#00000000"
            android:gravity="top|left"
            android:inputType="textMultiLine|textCapSentences"
            android:maxLength="300"
            android:scrollbars="vertical"/>

    </android.support.design.widget.TextInputLayout>

</LinearLayout>


<LinearLayout
    android:id="@+id/submitArea"
    android:layout_width="match_parent"
    android:layout_height="60dp"
    android:layout_alignParentBottom="true"
    android:orientation="horizontal">

    <Button
        android:id="@+id/postButton"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="Submit" />
</LinearLayout>

</RelativeLayout>

这些技巧使用android:layout_belowandroid:layout_above作为中间布局,android:layout_alignParentBottom="true"作为提交按钮。

希望这会有所帮助;)