第七次作业1

<?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:layout_height="match_parent"
    android:background="#FFFFFF"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="70dp"
        android:gravity="center_horizontal">

        <ImageView
            android:layout_width="70dp"
            android:layout_height="70dp"
            android:background="@drawable/qq"/>
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:textSize="50sp" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="20dp"
        android:layout_marginTop="24dp"
        android:orientation="horizontal">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text=" QQ账号  : "
            android:textColor="#050505"
            android:textSize="24sp" />

        <EditText
            android:id="@+id/et_number"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:hint="请输入QQ号"
            android:textSize="24dp" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="24dp"
        android:orientation="horizontal">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="QQ密码 : "
            android:textColor="#050505"
            android:textSize="24sp" />

        <EditText
            android:id="@+id/et_password"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:hint="请输入密码"
            android:password="true"
            android:textSize="24dp" />
    </LinearLayout>

    <Button
        android:id="@+id/btn_register"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="24dp"
        android:background="#15B5FA"
        android:gravity="center_horizontal"
        android:onClick="test"
        android:text="登录"
        android:textColor="#FFFFFF"
        android:textSize="32sp" />


</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    android:id="@+id/ll"
    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"
    tools:context=".Main2Activity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="35dp"
        android:text="登陆成功"
        android:textColor="#1FBFFA"
        android:textSize="40sp" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="35dp"
        android:orientation="horizontal">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="您的账号是: 123456789"
            android:textColor="#050505"
            android:textSize="35sp" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="15dp"
        android:orientation="horizontal">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="您的密码是: 123456789"
            android:textColor="#050505"
            android:textSize="35sp" />

        <TextView
            android:id="@+id/tv_password"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textSize="35dp" />

    </LinearLayout>

</LinearLayout>
package cn.itcase.minkexin;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
    private Button button;
    private EditText editText, editText2;
    private  TextView textView2;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button = (Button) findViewById(R.id.button);
        editText = (EditText) findViewById(R.id.editText);
        editText2 = (EditText) findViewById(R.id.editText2);
    }
    public void  click(View view){
        String ID="123456";
        String PassWord="abc123";
        String s1=editText.getText().toString();
        String s2=editText2.getText().toString();
        if (ID.equals(s1)&&PassWord.equals(s2)) {
            Toast.makeText(MainActivity.this, "登陆成功", Toast.LENGTH_SHORT).show();
        }
        else {
            Toast.makeText(MainActivity.this, "登录失败", Toast.LENGTH_SHORT).show();
        }
        Intent intent =new Intent(MainActivity.this,Main2Activity.class);
        intent.putExtra("zh",s1);
        intent.putExtra("mm",s2);
        startActivity(intent);
    }

}
package cn.itcase.minkexin;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.widget.TextView;

public class Main2Activity extends AppCompatActivity {
    private TextView editText, editText2;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);
        editText = (TextView) findViewById(R.id.editText);
        editText2 = (TextView) findViewById(R.id.editText2);
        Intent intent=getIntent();
        String zh=intent.getStringExtra("zh");
        String mm=intent.getStringExtra("mm");
        editText.setText(zh);
        editText2.setText(mm);
    }

}
原文地址:https://www.cnblogs.com/minmeishaonv/p/11730512.html