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完成这个需要三部分：
1是关于背景颜色的布局：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/linear" android:layout_width="fill_parent" android:layout_height="fill_parent" android:weightSum="1" android:orientation="vertical" android:background="#55FFFFFF"> </LinearLayout>
2是带圆角淡蓝色背景的RelativeLayout布局，下面是详细代码
<?xml version="1.0" encoding="UTF-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android"> <solid android:color="#55FFFFFF" />
详细的界面布局设计
<?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="#FF0066CC" /> <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> <?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:layout_marginTop="16dp" android:background="@android:drawable/edit_text" android:ems="10" android:inputType="textPassword" /> <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:layout_marginTop="20dp" android:background="#FF72CAE1" android:text="@string/btnLogin" /> <CheckBox android:id="@+id/cbRememberPass" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/etPassword" android:layout_alignTop="@+id/btnLogin" android:text="记住密码" /> </RelativeLayout>
3 MainActivity.java
package com.liu.activity; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.content.SharedPreferences.Editor; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.view.Window; import android.widget.Button; import android.widget.CheckBox; import android.widget.CompoundButton; import android.widget.CompoundButton.OnCheckedChangeListener; import android.widget.EditText; import android.widget.ImageButton; import android.widget.Toast; public class LoginActivity extends Activity { private EditText userName, password; private CheckBox rem_pw, auto_login; private Button btn_login; private ImageButton btnQuit; private String userNameValue,passwordValue; private SharedPreferences sp; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //去除标题 this.requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.login); //获得实例对象 sp = this.getSharedPreferences("userInfo", Context.MODE_WORLD_READABLE); userName = (EditText) findViewById(R.id.et_zh); password = (EditText) findViewById(R.id.et_mima); rem_pw = (CheckBox) findViewById(R.id.cb_mima); auto_login = (CheckBox) findViewById(R.id.cb_auto); btn_login = (Button) findViewById(R.id.btn_login); btnQuit = (ImageButton)findViewById(R.id.img_btn); //判断记住密码多选框的状态 if(sp.getBoolean("ISCHECK", false)) { //设置默认是记录密码状态 rem_pw.setChecked(true); userName.setText(sp.getString("USER_NAME", "")); password.setText(sp.getString("PASSWORD", "")); //判断自动登陆多选框状态 if(sp.getBoolean("AUTO_ISCHECK", false)) { //设置默认是自动登录状态 auto_login.setChecked(true); //跳转界面 Intent intent = new Intent(LoginActivity.this,LogoActivity.class); LoginActivity.this.startActivity(intent); } } // 登录监听事件 现在默认为用户名为：xuyinghui 密码：123 btn_login.setOnClickListener(new OnClickListener() { public void onClick(View v) { userNameValue = userName.getText().toString(); passwordValue = password.getText().toString(); if(userNameValue.equals("xuyinghui")&&passwordValue.equals("123")) { Toast.makeText(LoginActivity.this,"登录成功", Toast.LENGTH_SHORT).show(); //登录成功和记住密码框为选中状态才保存用户信息 if(rem_pw.isChecked()) { //记住用户名、密码、 Editor editor = sp.edit(); editor.putString("USER_NAME", userNameValue); editor.putString("PASSWORD",passwordValue); editor.commit(); } //跳转界面 Intent intent = new Intent(LoginActivity.this,LogoActivity.class); LoginActivity.this.startActivity(intent); //finish(); }else{ Toast.makeText(LoginActivity.this,"用户名或密码错误，请重新登录", Toast.LENGTH_LONG).show(); } } }); //监听记住密码多选框按钮事件 rem_pw.setOnCheckedChangeListener(new OnCheckedChangeListener() { public void onCheckedChanged(CompoundButton buttonView,boolean isChecked) { if (rem_pw.isChecked()) { System.out.println("记住密码已选中"); sp.edit().putBoolean("ISCHECK", true).commit(); }else { System.out.println("记住密码没有选中"); sp.edit().putBoolean("ISCHECK", false).commit(); } } }); //监听自动登录多选框事件 auto_login.setOnCheckedChangeListener(new OnCheckedChangeListener() { public void onCheckedChanged(CompoundButton buttonView,boolean isChecked) { if (auto_login.isChecked()) { System.out.println("自动登录已选中"); sp.edit().putBoolean("AUTO_ISCHECK", true).commit(); } else { System.out.println("自动登录没有选中"); sp.edit().putBoolean("AUTO_ISCHECK", false).commit(); } } }); btnQuit.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { finish(); } }); } }
整个界面设计完毕！
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原文地址：http://www.cnblogs.com/lzk101816/p/4620308.html
