ScrollView使用fillViewport设置高度为MatchParent

来源：互联网发布：js 给div style属性编辑：程序博客网时间：2024/06/05 16:33

转载请注明出处：http://blog.csdn.net/u012975705/article/details/49275001

之前遇到一问题，就是当使用ScrollView时，ScrollView控件里的布局无法充满整个手机屏幕，通过阅读源码发现，ScrollView中有个mFillViewport属性：
这里写图片描述

When set to true, the scroll view measure its child to make it fill the currently visible area.

大概意思就是当mFillViewport设置为true的时候，其子视图能够自动填充满当前可见的整个区域。即，在xml布局文件中为ScrollView控件添加

android:fillViewport="true"

能使ScrollView里的元素填满整个ScrollView。

实例：

<?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:background="@color/white"    android:gravity="center"    android:orientation="vertical">    <ScrollView        android:fillViewport="true"        android:layout_width="match_parent"        android:layout_height="match_parent">        <LinearLayout            android:layout_width="match_parent"            android:layout_height="match_parent"            android:orientation="vertical">            <LinearLayout                android:layout_width="match_parent"                android:layout_height="0dp"                android:layout_weight="1"                android:gravity="center"                android:orientation="vertical">                <ImageView                    android:layout_width="wrap_content"                    android:layout_height="wrap_content"                    android:src="@drawable/ic_logo2" />                <TextView                    style="@style/TextTitle"                    android:layout_width="wrap_content"                    android:layout_height="wrap_content"                    android:paddingTop="7dp"                    android:text="手机耕犊" />            </LinearLayout>            <LinearLayout                android:layout_width="match_parent"                android:layout_height="0dp"                android:layout_weight="1"                android:orientation="vertical">                <LinearLayout                    android:layout_width="match_parent"                    android:layout_height="wrap_content"                    android:layout_marginTop="@dimen/activity_vertical_margin"                    android:orientation="vertical">                    <LinearLayout                        android:focusable="true"                        android:focusableInTouchMode="true"                        android:layout_width="match_parent"                        android:layout_height="wrap_content"                        android:layout_marginLeft="@dimen/activity_horizontal_margin"                        android:layout_marginRight="@dimen/activity_horizontal_margin"                        android:layout_marginTop="@dimen/activity_vertical_margin"                        android:orientation="horizontal">                        <ImageView                            android:layout_width="wrap_content"                            android:layout_height="match_parent"                            android:paddingLeft="20dp"                            android:src="@drawable/ic_phone" />                        <EditText                            android:id="@+id/login_telnum"                            android:layout_width="match_parent"                            android:layout_height="wrap_content"                            android:background="@null"                            android:hint="@string/pc_telnum"                            android:paddingLeft="15dp"                            android:singleLine="true"                            android:textColor="@color/text_title"                            android:textColorHint="@color/gray"                            android:textCursorDrawable="@null"                            android:textSize="@dimen/typeface_medium_16" />                    </LinearLayout>                    <View                        android:layout_width="match_parent"                        android:layout_height="1dp"                        android:layout_marginBottom="30dp"                        android:layout_marginLeft="30dp"                        android:layout_marginTop="5dp"                        android:background="@color/bg_custom_gray" />                    <LinearLayout                        android:focusable="true"                        android:focusableInTouchMode="true"                        android:layout_width="match_parent"                        android:layout_height="wrap_content"                        android:layout_marginLeft="@dimen/activity_horizontal_margin"                        android:layout_marginRight="@dimen/activity_horizontal_margin"                        android:orientation="horizontal">                        <ImageView                            android:layout_width="wrap_content"                            android:layout_height="match_parent"                            android:paddingLeft="20dp"                            android:src="@drawable/ic_lock" />                        <EditText                            android:id="@+id/login_password"                            android:layout_width="match_parent"                            android:layout_height="wrap_content"                            android:background="@null"                            android:hint="@string/pc_password"                            android:paddingLeft="15dp"                            android:password="true"                            android:singleLine="true"                            android:textColor="@color/text_title"                            android:textColorHint="@color/gray"                            android:textCursorDrawable="@null"                            android:textSize="@dimen/typeface_medium_16" />                    </LinearLayout>                    <View                        android:layout_width="match_parent"                        android:layout_height="1dp"                        android:layout_marginBottom="10dp"                        android:layout_marginLeft="30dp"                        android:layout_marginTop="5dp"                        android:background="@color/bg_custom_gray" />                    <TextView                        android:id="@+id/pc_forget_pwd"                        style="@style/TextLittle"                        android:layout_width="wrap_content"                        android:layout_height="wrap_content"                        android:layout_marginLeft="30dp"                        android:text="@string/pc_forget_password"                        android:textColor="#20ac42"                        android:textSize="12dp" />                </LinearLayout>            </LinearLayout>            <LinearLayout                android:layout_width="match_parent"                android:layout_height="0dp"                android:layout_weight="1"                android:orientation="vertical">                <LinearLayout                    android:layout_width="match_parent"                    android:layout_height="wrap_content"                    android:layout_marginTop="30dp"                    android:orientation="vertical"                    android:paddingLeft="30dp"                    android:paddingRight="30dp">                    <Button                        android:id="@+id/pc_login"                        android:layout_width="match_parent"                        android:layout_height="@dimen/common_button_height"                        android:background="@drawable/bg_bt_rectangle_green2"                        android:text="@string/pc_login"                        android:textColor="@color/white"                        android:textSize="@dimen/typeface_medium_16" />                </LinearLayout>                <LinearLayout                    android:layout_width="match_parent"                    android:layout_height="match_parent"                    android:gravity="bottom">                    <TextView                        android:id="@+id/pc_register"                        android:layout_width="match_parent"                        android:layout_height="@dimen/common_button_height"                        android:background="@color/bg_custom_gray"                        android:gravity="center"                        android:text="@string/pc_register"                        android:textColor="@color/gray"                        android:textSize="@dimen/typeface_small_14" />                </LinearLayout>            </LinearLayout>        </LinearLayout>    </ScrollView></LinearLayout>

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