LinearLayout中将按钮右对齐遇到的问题

来源：互联网发布：扬州网络电视台回看编辑：程序博客网时间：2024/06/07 23:34

今天在做登陆界面时，为了达到以下效果

先将右边按钮设置成

android:layout_gravity="right"

后又做其他设置，右边按钮还是无法右边对齐，后做如下改动后方才实现，

将右边按钮放到另外一个LinearLayout中，并设置该LinearLayout的 android:gravity="right"，

这个布局代码如下

<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"     ><include layout="@layout/title_firstpage"/><FrameLayout    android:layout_width="match_parent"    android:layout_height="match_parent" >       <LinearLayout           android:layout_width="match_parent"           android:layout_height="wrap_content"           android:background="@drawable/img_bg_hua"           android:paddingTop="@dimen/margin_30"           android:paddingLeft="@dimen/margin_30"           android:paddingRight="@dimen/margin_30"           android:orientation="vertical"           >            <EditText                android:id="@id/loginname"                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:inputType="textEmailAddress|phone"                android:hint="@string/hint_login_loginname"                android:background="@drawable/img_bg_ring_top_n"                android:drawableLeft="@drawable/img_drawbleleft_mobile"                android:paddingLeft="@dimen/margin_15"                android:drawablePadding="@dimen/margin_15"                 /><EditText                android:id="@id/password"                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:inputType="textPassword"                android:hint="@string/hint_login_password"                android:background="@drawable/img_bg_ring_bottom_n"                android:drawableLeft="@drawable/img_drawbleleft_password"                android:paddingLeft="@dimen/margin_15"                android:drawablePadding="@dimen/margin_15"                 /><LinearLayout     android:layout_width="match_parent"    android:layout_height="wrap_content"    android:orientation="horizontal"    android:paddingTop="@dimen/margin_30"    >    <Button         android:id="@id/forget_password"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_gravity="left"        android:gravity="center"              android:background="@drawable/bg_button_login"        android:text="@string/forgetpassword"        android:textColor="@color/gray8F"        android:textSize="@dimen/textsize_7"        />    <LinearLayout         android:layout_width="match_parent"        android:layout_height="wrap_content"        android:gravity="right"        >        <Button         android:id="@id/login"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:gravity="center"        android:background="@drawable/bg_button_login"        android:text="@string/login"        android:textColor="@color/red"        android:textSize="@dimen/textsize_7"        />    </LinearLayout>    </LinearLayout></LinearLayout><!-- 标题栏投影 -->       <ImageView            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:background="@drawable/img_shadow_title"            tools:ignore="ContentDescription" /></FrameLayout></LinearLayout>

不用LinearLayout，用RelativeLayout布局也可以实现，核心布局如下

<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="wrap_content"    android:paddingLeft="@dimen/margin_50"    android:paddingRight="@dimen/margin_50"    android:paddingTop="@dimen/margin_30" >    <EditText        android:id="@id/loginname"        style="@style/edittext_login"        android:background="@drawable/img_bg_ring_top_n"        android:drawableLeft="@drawable/img_drawbleleft_mobile"        android:hint="@string/hint_login_loginname" />    <EditText        android:id="@id/password"        style="@style/edittext_login"        android:layout_below="@id/loginname"        android:background="@drawable/img_bg_ring_bottom_n"        android:drawableLeft="@drawable/img_drawbleleft_password"        android:hint="@string/hint_login_password"        android:inputType="textPassword" />    <Button        android:id="@id/forget_password"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@id/password"        android:layout_marginTop="@dimen/margin_35"        android:background="@drawable/bg_button_login"        android:text="@string/forgetpassword"        android:textColor="@color/gray8F"        android:textSize="@dimen/textsize_7" />    <Button        android:id="@id/login"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentRight="true"        android:layout_below="@id/password"        android:layout_marginTop="@dimen/margin_35"        android:background="@drawable/bg_button_login"        android:text="@string/login"        android:textColor="@color/red"        android:textSize="@dimen/textsize_7" /></RelativeLayout>

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