实验_Login UI

来源：互联网发布：网剧数据分析编辑：程序博客网时间：2024/06/06 07:47

已尽力：

运行效果图：

MainActivity.java代码不需改变；；

；

新建LoginActivity.java的：

package com.example.minitwittersimulate;import android.app.Activity;import android.content.Intent;import android.content.SharedPreferences;import android.os.Bundle;import android.preference.PreferenceManager;import android.view.View;import android.view.View.OnClickListener;import android.view.Window;import android.widget.Button;import android.widget.CheckBox;import android.widget.EditText;import android.widget.Toast;public class LoginActivity extends Activity{private SharedPreferences pref;private SharedPreferences.Editor editor;private EditText accountEdit;private EditText passwordEdit;private Button login;private CheckBox rememberPass;@Overrideprotected void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_NO_TITLE);setContentView(R.layout.activity_login);pref = PreferenceManager.getDefaultSharedPreferences(this);accountEdit = (EditText) findViewById(R.id.etUsername);passwordEdit = (EditText) findViewById(R.id.etPassword);rememberPass = (CheckBox) findViewById(R.id.cbRememberPass);login = (Button) findViewById(R.id.btnLogin);boolean isRemember = pref.getBoolean("remember_password", false);if (isRemember){// 将账号和密码都设置到文本框中String account = pref.getString("account", "");String password = pref.getString("password", "");accountEdit.setText(account);passwordEdit.setText(password);rememberPass.setChecked(true);}login.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View v){String account = accountEdit.getText().toString();String password = passwordEdit.getText().toString();if (account.equals("admin") && password.equals("123456")){editor = pref.edit();if (rememberPass.isChecked()){ // 检查复选框是否被选中editor.putBoolean("remember_password", true);editor.putString("account", account);editor.putString("password", password);} else{editor.clear();}editor.commit();Intent intent = new Intent(LoginActivity.this, MainActivity.class);startActivity(intent);finish();}else{Toast.makeText(LoginActivity.this, "account or password is invalid", Toast.LENGTH_SHORT).show();}}});}}

新建login_top.xml的代码：

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:background="@drawable/btnbg_roundcorner"    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:id="@+id/tvUsername"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentLeft="true"        android:layout_alignParentTop="true"        android:text="@string/tvName"        android:textAppearance="?android:attr/textAppearanceMedium" />    <EditText        android:id="@+id/etUsername"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/tvUsername"        android:layout_below="@+id/tvUsername"        android:background="@android:drawable/edit_text"        android:ems="10" >        <requestFocus />    </EditText>    <TextView        android:id="@+id/tvPassword"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/etUsername"        android:layout_below="@+id/etUsername"        android:text="@string/tvPassword"        android:textAppearance="?android:attr/textAppearanceMedium" />    <EditText        android:id="@+id/etPassword"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/tvPassword"        android:layout_below="@+id/tvPassword"        android:background="@android:drawable/edit_text"        android:ems="10"        android:inputType="textPassword" />    <CheckBox        android:id="@+id/cbRememberPass"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignBaseline="@+id/btnLogin"        android:layout_alignBottom="@+id/btnLogin"        android:layout_alignLeft="@+id/etPassword"        android:text="记住密码"        android:textSize="20sp" />    <Button        android:id="@+id/btnLogin"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignRight="@+id/etPassword"        android:layout_below="@+id/etPassword"        android:background="#FF72CAE1"        android:onClick="login"        android:text="@string/btnLogin" /></RelativeLayout>

新建login_botton.xml的代码：

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="wrap_content" >    <TextView        android:id="@+id/tvRegist"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentLeft="true"        android:layout_alignParentTop="true"        android:layout_marginLeft="21dp"        android:layout_marginTop="18dp"        android:text="@string/tvRegister"        android:autoLink="all"        android:textColorLink="#FFFF66CC" />    <ImageView        android:id="@+id/imageView1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentBottom="true"        android:layout_alignParentRight="true"        android:layout_marginBottom="24dp"        android:src="@drawable/panda" />    <ImageView        android:id="@+id/imageView2"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentBottom="true"        android:layout_centerHorizontal="true"        android:layout_marginBottom="28dp"        android:src="@drawable/icon" /></RelativeLayout>

新建 activity_login.xml代码:

<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:background="@drawable/loginbg"    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=".LoginActivity" >  <include layout="@layout/login_top"/>   <include layout="@layout/login_bottom"/>"</LinearLayout>

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