首先我对EditView,button,textview外观设置了一下。
目录
简单的外观设置
文字点击设置(变色)
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@color/colorPrimary" android:state_pressed="true" />
</selector>
按钮点击设置(变色)
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="@color/colorPrimary"/>
<item android:state_pressed="false" android:drawable="@color/colorPrimaryDark"/>
</selector>
输入框外观设置(好看)
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="@color/colorPrimary"/>
<item android:state_pressed="false" android:drawable="@color/colorPrimaryDark"/>
</selector>
登录页面的布局设置
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent"
tools:context=".MainActivity"
android:layout_margin="15dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="10dp"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="账号:"
android:textSize="25dp"
android:layout_marginRight="5dp"
/>
<EditText
android:id="@+id/et_account_one"
android:layout_width="match_parent"
android:layout_height="40dp"
android:hint="请输入用户名或手机号"
android:inputType="text"
style="@style/MyEditStyle" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="10dp"
android:layout_marginTop="20dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="密码:"
android:textSize="25dp"
android:layout_marginRight="5dp"
/>
<EditText
android:id="@+id/et_password_one"
android:layout_width="match_parent"
android:layout_height="40dp"
android:hint="请输入密码"
style="@style/MyEditStyle"
android:inputType="numberPassword"
/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center_horizontal"
android:layout_marginTop="20dp">
<CheckBox
android:id="@+id/ck_remeber"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="记住密码"
android:textSize="20dp"/>
<CheckBox
android:id="@+id/ck_Automatic"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="自动登录"
android:textSize="20dp"
android:layout_marginLeft="30dp"/>
</LinearLayout>
<Button
android:id="@+id/btm_signin"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="登录"
android:onClick="SignIn"
style="@style/MybtmStyle" />
<TextView
android:id="@+id/tv_register"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:layout_gravity="right"
android:text="没账号?立即注册"
android:clickable="true"
android:background="@drawable/text"
android:textColor="@color/colorPrimary"/>
</LinearLayout>
效果图
注册页面的布局设置
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent"
tools:context=".MainActivity"
android:layout_margin="15dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="10dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="5dp"
android:text="账 号 :"
android:textSize="25dp" />
<EditText
android:id="@+id/ed_account"
style="@style/MyEditStyle"
android:layout_width="match_parent"
android:layout_height="40dp"
android:hint="请输入用户名或手机号"
android:inputType="text" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="10dp"
android:layout_marginTop="10dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="密 码 :"
android:textSize="25dp"
android:layout_marginRight="5dp"
/>
<EditText
android:id="@+id/ed_password"
android:layout_width="match_parent"
android:layout_height="40dp"
android:hint="请输入密码"
android:inputType="numberPassword"
style="@style/MyEditStyle" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="10dp"
android:layout_marginTop="10dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="确认密码:"
android:textSize="25dp"
android:layout_marginRight="5dp"
/>
<EditText
android:id="@+id/ed_containPassword"
android:layout_width="match_parent"
android:layout_height="40dp"
android:hint="再次输入密码"
android:inputType="numberPassword"
style="@style/MyEditStyle"/>
</LinearLayout>
<Button
android:id="@+id/btn_register"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="注册"
style="@style/MybtmStyle" />
<CheckBox
android:id="@+id/cb_agree"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:layout_gravity="left"
android:text="同意协议"
android:textColor="@color/colorPrimary"/>
</LinearLayout>
效果图
登录成功页面的布局设置
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent"
tools:context=".MainActivity3">
<TextView
android:id="@+id/tv_comein"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="登录成功"
android:textSize="35dp"
android:gravity="center_horizontal"/>
</LinearLayout>
效果图就不贴了,上面这个很简单,然后附上Java代码
登录页面的Java逻辑代码
package com.example.register;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class MainActivity extends AppCompatActivity {
EditText et_account;
EditText et_password;
CheckBox cb_remeber;
CheckBox cb_Auto;
Button btn_signin;
TextView tv_register;
Map<String,Integer> map=new HashMap<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
et_account = findViewById(R.id.et_account_one);
et_password = findViewById(R.id.et_password_one);
cb_remeber = findViewById(R.id.ck_remeber);
cb_Auto = findViewById(R.id.ck_Automatic);
btn_signin = findViewById(R.id.btm_signin);
tv_register = findViewById(R.id.tv_register);
//点击注册按钮
tv_register.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intentRegister = new Intent(MainActivity.this, MainActivity2.class);
startActivity(intentRegister);
}
});
}
//点击登录按钮
public void SignIn(View view) {
//获取SharedPreferences类的对象
SharedPreferences share = getSharedPreferences("account1", MODE_PRIVATE);
String ac=share.getString("zhanghao1","");
int ps = share.getInt("mima1", 0);
//TextUtils工具类是一个很好用的,判断两个用户名字符串是否相等,或者为空 即返回
if(!TextUtils.equals(ac,et_account.getText().toString())||
et_account.getText().toString().isEmpty()){
Toast.makeText(MainActivity.this,"用户名错误或者为空",
Toast.LENGTH_SHORT).show();
return;
}
//判断密码和储存的不一样或者为空即返回
if(Integer.parseInt(et_password.getText().toString())!=ps ||
et_password.getText().toString().isEmpty()){
Toast.makeText(MainActivity.this,"密码错误或者为空",
Toast.LENGTH_SHORT).show();
return;
}
//如果都一样即可跳转页面并传入用户名参数给下一个页面
if (Integer.parseInt(et_password.getText().toString())==ps
&&TextUtils.equals(ac,et_account.getText().toString())){
}
Intent main3 = new Intent(MainActivity.this, MainActivity3.class);
main3.putExtra("username", et_account.getText().toString());
startActivity(main3);
return;
}
}
注册页面的逻辑代码
package com.example.register;
import androidx.appcompat.app.AppCompatActivity;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity2 extends AppCompatActivity {
EditText ed_account;
EditText ed_password;
EditText ed_contain;
CheckBox cb_agree;
Button btn_register;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
ed_account = findViewById(R.id.ed_account);
ed_password = findViewById(R.id.ed_password);
ed_contain = findViewById(R.id.ed_containPassword);
cb_agree = findViewById(R.id.cb_agree);
btn_register = findViewById(R.id.btn_register);
//点击按钮
btn_register.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//首先需要判断协议是否勾选
if(!cb_agree.isChecked()){
Toast.makeText(MainActivity2.this, "还未同意协议,无法注册",
Toast.LENGTH_SHORT).show();
return;
}
//创建一个SharedPreferences类对象用于储存数据
SharedPreferences shared =
getSharedPreferences("account1", MODE_PRIVATE);
//对象中有个方法创建内部类对象,此内部类对象可以放入参数持久化存储
SharedPreferences.Editor edit = shared.edit();
//内部类对象用于存,外部类对象用于取,判断账号已经被注册或者为空
if (!shared.contains("zhanghao1")&&
!ed_account.getText().toString().isEmpty()) {
edit.putString("zhanghao1",
ed_account.getText().toString());
} else {
Toast.makeText(MainActivity2.this,
"该账号已经被注册或者为空",
Toast.LENGTH_SHORT).show();
return;
}
//判断密码不一致或者空
if(TextUtils.equals(ed_contain.getText().toString(),
ed_password.getText().toString())
&&!ed_password.getText().toString().isEmpty()
&&!ed_contain.getText().toString().isEmpty()){
edit.putInt("mima1",Integer.parseInt
(ed_password.getText().toString()));
}else{
Toast.makeText(MainActivity2.this,
"密码不一致或者有一项为空"
,Toast.LENGTH_SHORT).show();
return;
}
//存进去,没有下面这两条其中之一就无法成功存储
edit.commit();
//edit.apply();
Toast.makeText(MainActivity2.this,"已经保存",Toast.LENGTH_SHORT).show();
//结束当前页面
MainActivity2.this.finish();
}
});
}
}
登录成功页面Java代码
package com.example.register;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
public class MainActivity3 extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main3);
TextView tx = (TextView) findViewById(R.id.tv_comein);
Intent intent = getIntent();
if (intent != null) {
String name = intent.getStringExtra("username");
tx.setText(name+"用户欢迎回来");
}
}
}