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
<!--使用线性布局-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#F5F5F5">
<!--Logo-->
<ImageView
android:id="@+id/LogoImage"
android:layout_width="match_parent"
android:layout_height="120dp"
android:layout_marginTop="100dp"
/>
<!--标题-->
<TextView
android:id="@+id/TitleText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="25dp"
android:text="登录"
android:gravity="center"
android:textStyle="italic"
android:textColor="#808080"
android:textSize="30dp" />
<!--嵌套线性布局-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<!--嵌套线性布局-->
<LinearLayout
android:id="@+id/UserNameLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!--用户名输入-->
<EditText
android:id="@+id/UserNameEdit"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="15dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="10dp"
android:layout_marginBottom="15dp"
android:background="@drawable/translucent_edit"
android:hint="输入用户名"
android:textSize="24dp"
android:singleLine="true" />
</LinearLayout>
<!--嵌套线性布局-->
<LinearLayout
android:id="@+id/PassWordLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<!--密码输入-->
<EditText
android:id="@+id/PassWordEdit"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="15dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="10dp"
android:layout_marginBottom="15dp"
android:background="@drawable/translucent_edit"
android:hint="输入用户密码"
android:textSize="24dp"
android:maxLength="16"
android:singleLine="true"
android:inputType="textPassword" />
</LinearLayout>
<!--嵌套线性布局-->
<LinearLayout
android:id="@+id/LayoutButton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<!--登录按钮-->
<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" />
<!--注册按钮-->
<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" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
</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);
}
}
