Question

当我按下提交按钮时，相同的活动会重新打开（清除所有选中的单选按钮）。仅当用户已注册时才会发生这种情况。

当用户是新用户时使用firebase，然后打开新的活动（MatchFind.class），这是正确的。

代码的主要部分

bSubmit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                DatabaseReference current_user_db = mDatabase.child(user_id);
                int id1 = r1.getCheckedRadioButtonId();
                int id2 = r2.getCheckedRadioButtonId();
                int id3 = r3.getCheckedRadioButtonId();
                int id4 = r4.getCheckedRadioButtonId();
                int id5 = r5.getCheckedRadioButtonId();
                int id6 = r6.getCheckedRadioButtonId();
                int id7 = r7.getCheckedRadioButtonId();
                int id8 = r8.getCheckedRadioButtonId();
                int id9 = r9.getCheckedRadioButtonId();
                int id10 = r10.getCheckedRadioButtonId();

                if (id1 == -1 || id2 == -2 || id3 == -1 || id4 == -1 || id5 == -1 || id6 == -1 || id7 == -1
                        || id8 == -1 || id9 == -1 || id10 == -1) {
                    Toast.makeText(Questions.this, "Please Answer All The Questions", Toast.LENGTH_SHORT).show();
                } else {
                    rb1 = (RadioButton) findViewById(id1);
                    rb2 = (RadioButton) findViewById(id2);
                    rb3 = (RadioButton) findViewById(id3);
                    rb4 = (RadioButton) findViewById(id4);
                    rb5 = (RadioButton) findViewById(id5);
                    rb6 = (RadioButton) findViewById(id6);
                    rb7 = (RadioButton) findViewById(id7);
                    rb8 = (RadioButton) findViewById(id8);
                    rb9 = (RadioButton) findViewById(id9);
                    rb10 = (RadioButton) findViewById(id10);

                    getAnswers();

                    /*for (int i = 1; i < 11; i++) {
                        current_user_db.child("answer"+i).setValue(ans[i]);
                    }*/

                    current_user_db.child("answer"+1).setValue(ans[1]);
                    current_user_db.child("answer"+2).setValue(ans[2]);
                    current_user_db.child("answer"+3).setValue(ans[3]);
                    current_user_db.child("answer"+4).setValue(ans[4]);
                    current_user_db.child("answer"+5).setValue(ans[5]);
                    current_user_db.child("answer"+6).setValue(ans[6]);
                    current_user_db.child("answer"+7).setValue(ans[7]);
                    current_user_db.child("answer"+8).setValue(ans[8]);
                    current_user_db.child("answer"+9).setValue(ans[9]);
                    current_user_db.child("answer"+10).setValue(ans[10]);

                    Intent intent = new Intent(Questions.this, MatchFind.class);
                    startActivity(intent);
                }
            }
        });

完整代码

public class Questions extends AppCompatActivity {

    private DatabaseReference mDatabase;
    private FirebaseAuth mAuth;

    private Button bSubmit;

    private RadioGroup r1, r2, r3, r4, r5, r6, r7, r8, r9, r10;
    private RadioButton rb1, rb2, rb3, rb4, rb5, rb6, rb7, rb8, rb9, rb10;
    private String ans[] = new String[11];

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_questions);

        bSubmit = (Button) findViewById(R.id.bSubmit);

        r1 = (RadioGroup) findViewById(R.id.rGroupQ1);
        r2 = (RadioGroup) findViewById(R.id.rGroupQ2);
        r3 = (RadioGroup) findViewById(R.id.rGroupQ3);
        r4 = (RadioGroup) findViewById(R.id.rGroupQ4);
        r5 = (RadioGroup) findViewById(R.id.rGroupQ5);
        r6 = (RadioGroup) findViewById(R.id.rGroupQ6);
        r7 = (RadioGroup) findViewById(R.id.rGroupQ7);
        r8 = (RadioGroup) findViewById(R.id.rGroupQ8);
        r9 = (RadioGroup) findViewById(R.id.rGroupQ9);
        r10 = (RadioGroup) findViewById(R.id.rGroupQ10);

        mDatabase = FirebaseDatabase.getInstance().getReference().child("Users");
        mAuth = FirebaseAuth.getInstance();

        final String user_id = mAuth.getCurrentUser().getUid();

        bSubmit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                DatabaseReference current_user_db = mDatabase.child(user_id);
                int id1 = r1.getCheckedRadioButtonId();
                int id2 = r2.getCheckedRadioButtonId();
                int id3 = r3.getCheckedRadioButtonId();
                int id4 = r4.getCheckedRadioButtonId();
                int id5 = r5.getCheckedRadioButtonId();
                int id6 = r6.getCheckedRadioButtonId();
                int id7 = r7.getCheckedRadioButtonId();
                int id8 = r8.getCheckedRadioButtonId();
                int id9 = r9.getCheckedRadioButtonId();
                int id10 = r10.getCheckedRadioButtonId();

                if (id1 == -1 || id2 == -2 || id3 == -1 || id4 == -1 || id5 == -1 || id6 == -1 || id7 == -1
                        || id8 == -1 || id9 == -1 || id10 == -1) {
                    Toast.makeText(Questions.this, "Please Answer All The Questions", Toast.LENGTH_SHORT).show();
                } else {
                    rb1 = (RadioButton) findViewById(id1);
                    rb2 = (RadioButton) findViewById(id2);
                    rb3 = (RadioButton) findViewById(id3);
                    rb4 = (RadioButton) findViewById(id4);
                    rb5 = (RadioButton) findViewById(id5);
                    rb6 = (RadioButton) findViewById(id6);
                    rb7 = (RadioButton) findViewById(id7);
                    rb8 = (RadioButton) findViewById(id8);
                    rb9 = (RadioButton) findViewById(id9);
                    rb10 = (RadioButton) findViewById(id10);

                    getAnswers();

                    /*for (int i = 1; i < 11; i++) {
                        current_user_db.child("answer"+i).setValue(ans[i]);
                    }*/

                    current_user_db.child("answer"+1).setValue(ans[1]);
                    current_user_db.child("answer"+2).setValue(ans[2]);
                    current_user_db.child("answer"+3).setValue(ans[3]);
                    current_user_db.child("answer"+4).setValue(ans[4]);
                    current_user_db.child("answer"+5).setValue(ans[5]);
                    current_user_db.child("answer"+6).setValue(ans[6]);
                    current_user_db.child("answer"+7).setValue(ans[7]);
                    current_user_db.child("answer"+8).setValue(ans[8]);
                    current_user_db.child("answer"+9).setValue(ans[9]);
                    current_user_db.child("answer"+10).setValue(ans[10]);

                    Intent intent = new Intent(Questions.this, MatchFind.class);
                    startActivity(intent);
                }
            }
        });
    }

    private void getAnswers() {
        if (rb1.getText().toString().equals("Long Term Relationship"))
            ans[1] = "a";
        else
            ans[1] = "b";

        if (rb2.getText().toString().equals("Yes"))
            ans[2] = "a";
        else
            ans[2] = "b";

        if (rb3.getText().toString().equals("Yes"))
            ans[3] = "a";
        else
            ans[3] = "b";

        if (rb4.getText().toString().equals("Bollywood Movies"))
            ans[4] = "a";
        else
            ans[4] = "b";

        if (rb5.getText().toString().equals("Yes"))
            ans[5] = "a";
        else
            ans[5] = "b";

        if (rb6.getText().toString().equals("Yes"))
            ans[6] = "a";
        else
            ans[6] = "b";

        if (rb7.getText().toString().equals("Yes"))
            ans[7] = "a";
        else
            ans[7] = "b";

        if (rb8.getText().toString().equals("Yes"))
            ans[8] = "a";
        else
            ans[8] = "b";

        if (rb9.getText().toString().equals("Yes"))
            ans[9] = "a";
        else
            ans[9] = "b";

        if (rb10.getText().toString().equals("Yes"))
            ans[10] = "a";
        else
            ans[10] = "b";
    }

FindMatch.java

public class MatchFind extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_match_find);
    }
}

Answer 1

添加此标志，FLAG_ACTIVITY_CLEAR_TASK，并在开始活动之前调用finish（）。执行干净，然后重新启动，最好使无效并重新启动以清除缓存。

Answer 2

您是否对登录用户使用firebase身份验证。您需要在On create中创建Firebase AuthStateListener（）。并检查用户是否已登录或不在那里。如果用户签名的身份验证状态已更改，您可以点击那里按钮。

在Android

2 个答案: