账户保存算法优化

src/sixaunyi/app/src/main/java/com/example/sixaunyi/LoginActivity.java

@@ -29,16 +29,16 @@ public class LoginActivity extends AppCompatActivity {
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        sharedPreferences = getSharedPreferences("account", Context.MODE_PRIVATE);
-        String username = sharedPreferences.getString("username", "");
-        String password =sharedPreferences.getString("password", "");
-        boolean isChecked = sharedPreferences.getBoolean("checkbox_state", false);
         setContentView(R.layout.activity_login);
         // 获取输入框和按钮的实例
         mUsername = findViewById(R.id.username);
         mPassword = findViewById(R.id.password);
         mLoginButton = findViewById(R.id.login);
         Account_remember=findViewById(R.id.remember);
+        sharedPreferences = getSharedPreferences("account", Context.MODE_PRIVATE);
+        String username = sharedPreferences.getString("username", "");
+        String password =sharedPreferences.getString("password", "");
+        boolean isChecked = sharedPreferences.getBoolean("checkbox_state", false);
         mUsername.setText(username);
         mPassword.setText(password);
         Account_remember.setChecked(isChecked);
@@ -46,25 +46,6 @@ public class LoginActivity extends AppCompatActivity {
         mLoginButton.setOnClickListener(v -> {
             attemptLogin();
         });
-        Account_remember.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
-            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
-                // 复选框状态改变时的逻辑处理
-                String password = mPassword.getText().toString();
-                SharedPreferences.Editor editor = sharedPreferences.edit();
-                if (isChecked) {
-                    // 复选框被选中
-                    editor.putBoolean("checkbox_state", true);
-                    editor.putString("password", password);
-                    editor.apply();
-                } else {
-                    // 复选框未被选中
-                    editor.putBoolean("checkbox_state", false);
-                    editor.putString("password", "");
-                    editor.apply();
-                }
-            }
-        });
-
     }
     private void attemptLogin() {
         String username = mUsername.getText().toString();
@@ -73,6 +54,13 @@ public class LoginActivity extends AppCompatActivity {
         if (if_correct) {
             SharedPreferences.Editor editor = sharedPreferences.edit();
             editor.putString("username", username);
+            editor.putBoolean("checkbox_state", Account_remember.isChecked());
+            editor.apply();
+            if (Account_remember.isChecked()){
+                editor.putString("password", password);
+            }else{
+                editor.putString("password", "");
+            }
             editor.apply();
             Toast.makeText(this, "登录成功", Toast.LENGTH_SHORT).show();
             Intent intent = new Intent(LoginActivity.this, MainActivity.class);