作业07

<?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="match_parent"
    android:background="@drawable/dengluye">


    <ImageView
        android:id="@+id/touxiang"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/touxiang02"
        android:layout_marginTop="100dp"
        android:layout_centerHorizontal="true">
    </ImageView>
    <EditText
        android:id="@+id/et01"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:layout_below="@id/touxiang"
        android:background="#9D9D9D"
        android:layout_marginTop="5dp"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:hint="账号/手机号">
    </EditText>

    <EditText
        android:id="@+id/et02"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:layout_below="@id/et01"
        android:layout_marginTop="2dp"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:background="#ADADAD"
        android:inputType="textPassword">

    </EditText>
    <Button
        android:id="@+id/btn02"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/button_shape"
        android:text="登录"
        android:layout_below="@id/et02"
        />
    <Button
        android:id="@+id/btnzc2"
        android:layout_width="200dp"
        android:layout_height="wrap_content"
        android:onClick="click"
        android:layout_marginTop="400dp"
        android:layout_centerHorizontal="true"
        android:background="@drawable/button_shape"
        android:text="未有账号？请注册" />




</RelativeLayout>

package com.example.myapplication;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private ListView mListView;
private EditText dengluzh;
private EditText denglumm;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(
                WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN
        );
        setContentView(R.layout.denglu);
        dengluzh = (EditText)  findViewById(R.id.et01);
        denglumm = (EditText)  findViewById(R.id.et02);
        Button login = (Button) findViewById(R.id.btn02);
        Button zc2 = (Button) findViewById(R.id.btnzc2);
        login.setOnClickListener(this);
        zc2.setOnClickListener(this);

            }

    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.btn02:
                String zh = dengluzh.getText().toString();
              String mm = denglumm.getText().toString();

                if ("13164557510".equals(zh)&&"sqlzhs521".equals(mm)){
                   Intent intent = new Intent(MainActivity.this,MyActivity.class);
                   startActivity(intent);
                }else {
                    Toast.makeText(MainActivity.this,"登陆失败",Toast.LENGTH_SHORT).show();
                }
                break;
            case R.id.btnzc2:
                Intent intent = new Intent();
                intent.setClass(MainActivity.this,zhuceActivity.class);
                startActivity(intent);
                break;
        }
    }


}

来源：https://www.cnblogs.com/LXF-i/p/12006131.html