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<?xml version="1.0" encoding="utf-8"?>

<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="com.example.foolishfan.user_v10.Login">
    <RelativeLayout
        android:id="@+id/login_view"
        android:layout_width="400dp"
        android:layout_height="800dp"
        android:layout_centerInParent="true"
         >
  
        <Button
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="登录"
            android:id="@+id/login_btn_login"
            android:onClick="finish_login"
            android:background="#545bcb"
            android:textSize="20dp"
            android:textColor="#ffffff"
            android:layout_below="@+id/login_edit_pwd"
            android:layout_alignParentLeft="true"
            android:layout_alignParentStart="true"
            android:layout_marginTop="52dp" />
  
        <EditText
            android:layout_width="400dp"
            android:layout_height="60dp"
            android:inputType="textPassword"
            android:ems="10"
            android:id="@+id/login_edit_pwd"
            android:drawableLeft="@android:drawable/ic_lock_idle_lock"
            android:hint="请输入您的密码"
            android:layout_below="@+id/login_edit_account"
            android:layout_alignParentLeft="true"
            android:layout_alignParentStart="true" />
  
        <EditText
            android:layout_width="400dp"
            android:layout_height="60dp"
            android:inputType="textPersonName"
            android:id="@+id/login_edit_account"
            android:drawableLeft="@android:drawable/ic_menu_myplaces"
            android:hint="请输入您的用户名"
            android:layout_below="@+id/logo"
            android:layout_alignParentLeft="true"
            android:layout_alignParentStart="true"
            android:layout_marginTop="20dp" />
 
        <ImageView
            android:id="@+id/logo"
            android:layout_width="300dp"
            android:layout_height="150dp"
            android:layout_alignParentEnd="true"
            android:layout_alignParentLeft="true"
            android:layout_alignParentStart="true"
            android:layout_alignParentTop="true"
            android:background="#000001" />
 
    </RelativeLayout>
    <RelativeLayout
        android:id="@+id/login_success_view"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:layout_marginLeft="15.0px"
        android:layout_marginRight="15.0px"
        android:layout_marginTop="62.0px"
        android:background="#ff3f3f3f"
        android:paddingBottom="10.0px"
        android:paddingTop="21.0px"
        android:visibility="gone" >
  
        <TextView
            android:id="@+id/login_success_show"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:textColor="#ff3f3f3f"
            android:textSize="20.0dip" />
    </RelativeLayout>
  
</RelativeLayout>
 
原文地址:https://www.cnblogs.com/fanbudufan/p/13986231.html