2024.4.22

第一阶段验收时我们的项目仍然没有大的进展，老师说我们可以做一个leisiyuqq空间发表动态的软件，加上定位，在发布之后能够根据地点查看曾今上传过的照片，于是将之前所作的项目推翻，c重新开始了新项目的完成
首先写了登录页面

<androidx.constraintlayout.widget.ConstraintLayout 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"
tools:context=".MainActivity">99999

<androidx.appcompat.widget.AppCompatButton
android:id="@+id/LoginButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="15dp"
android:layout_margin="15dp"
android:layout_weight="1"
android:textColor="@color/white"
android:background="@drawable/translucent_button"
android:text="登 录"
android:textSize="24dp" />

<androidx.appcompat.widget.AppCompatButton
android:id="@+id/SignUpButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="15dp"
android:layout_margin="15dp"
android:layout_weight="1"
android:textColor="@color/white"
android:background="@drawable/translucent_button"
android:text="注 册"
android:textSize="24dp" />

</androidx.constraintlayout.widget.ConstraintLayout>
登录功能
package com.example.share;

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

//import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;

import com.example.share.register;
import com.example.share.dao.UserDao;
import com.example.share.utils.CommonUtils;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

private Button LoginButton,SignUpButton;
private EditText UserNameEdit,PassWordEdit;
UserDao userDao;
private Handler mainHandler;

@SuppressLint("MissingInflatedId")
@Override
protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

LoginButton = findViewById(R.id.LoginButton);
SignUpButton=findViewById(R.id.SignUpButton);

UserNameEdit = findViewById(R.id.UserNameEdit);
PassWordEdit = findViewById(R.id.PassWordEdit);

userDao=new UserDao();
mainHandler=new Handler(getMainLooper());

LoginButton.setOnClickListener(this);
SignUpButton.setOnClickListener(this);
}

@Override
public void onClick(View v) {
if (v.getId() == R.id.LoginButton) {
String name=UserNameEdit.getText().toString().trim();
String password=PassWordEdit.getText().toString().trim();

new Thread(new Runnable() {
@Override
public void run() {

String Password="";
String TeacherPassword="";
Password=userDao.login(name);

if(password.equals(Password)){
Intent intent=new Intent(getApplicationContext(), DongtaiActivity.class);
Bundle bundle=new Bundle();
bundle.putString("name",name);
intent.putExtras(bundle);
startActivity(intent);
mainHandler.post(new Runnable() {
@Override
public void run() {
CommonUtils.showShortMsg(MainActivity.this,"登陆成功");
SharedPreferences sharedPref = getSharedPreferences("app_prefs", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPref.edit();
editor.putString("username", name);
editor.apply();
Intent intent=new Intent(getApplicationContext(), DongtaiActivity.class);
}
});

}
else if(password.equals(TeacherPassword)){
Intent intent=new Intent(getApplicationContext(), DongtaiActivity.class);
startActivity(intent);
mainHandler.post(new Runnable() {
@Override
public void run() {
CommonUtils.showShortMsg(MainActivity.this,"登陆成功");
Intent intent=new Intent(getApplicationContext(), DongtaiActivity.class);
}
});

}
else{
mainHandler.post(new Runnable() {
@Override
public void run() {
CommonUtils.showShortMsg(MainActivity.this,"登陆失败");
}
});
}
}
}).start();
}
else if(v.getId()==R.id.SignUpButton){
Intent intent=new Intent(getApplicationContext(), DongtaiActivity.class);
startActivity(intent);
}
}

@Override
public void onPointerCaptureChanged(boolean hasCapture) {
super.onPointerCaptureChanged(hasCapture);
}
}