问如何在onClickListener之外从onClickListener获取值
EN

Stack Overflow用户

提问于 2019-04-03 08:13:34

回答 2查看 73关注 0票数 0

因此，我正在尝试创建一个多项选择测验，它将根据您的选择生成一个健身计划。我有三个多项选择按钮，每次回答一个问题时，问题和答案都会轮换。我正在尝试获取用户为每个问题选择的答案，但是我的程序不允许我正确地获取数据。

我尝试过使用getter和setter方法，但我的程序仍然无法获取信息

    private TextView blank;
    private Button mButtonChoice1;
    private Button mButtonChoice2;
    private Button mButtonChoice3;

    String experience;
    String preference;
    int days;

     protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        blank = (TextView) findViewById(R.id.program);
        mButtonChoice1 = (Button)findViewById(R.id.choice1);
        mButtonChoice2 = (Button)findViewById(R.id.choice2);
        mButtonChoice3 = (Button)findViewById(R.id.choice3);


         mButtonChoice1.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View view){
                //My logic for Button goes in here

                if (mButtonChoice1.getText() == "Two"){ 
//QUESTION 1 ANSWER_1
                    updateQuestion();
                    days = 2;


                }
                else if (mButtonChoice1.getText() == "0-6 months") { //QUESTION 2 ANSWER_1
                    updateQuestion();
                    experience = "0-6 months";

                }

            }




          mButtonChoice2.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View view){
                //My logic for Button goes in here

                if (mButtonChoice2.getText() == "Three"){ //QUESTION 1 ANSWER_2
                    updateQuestion();
                    days = 3;

                }
                else if(mButtonChoice2.getText() == "6-18 months"){ //QUESTION 2 ANSWER_2
                    updateQuestion();
                    experience = "6-18 months";

                }
           }
       }



          mButtonChoice3.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View view){
                //My logic for Button goes in here

                if (mButtonChoice3.getText() == "Four"){ //QUESTION 1 ANSWER_3
                    updateQuestion();
                    days = 4;

                }
                else if (mButtonChoice3.getText() == "1.5+ years") { //QUESTION 2 ANSWER_3
                    updateQuestion();
                    experience = "1.5+ years";

                }
           }
       }



//here i am just testing if my program is able to receive the data that was entered for each variable 
if (day == 2 && preference == "Strength" && experience == "0-6 months") {

    blank.setText("test working");

}
else {

blank.setText("Test not working");

}



}// oncreate

然而，就在我启动程序的时候，甚至在我选择任何选项之前，测试testVIew部分就已经声明了“测试不工作”。

如果我将if语句放在onclickListener函数中，我的程序将能够获得变量的值，但是，我需要将if语句放在底部，因为我需要考虑每个变量的所有情况，并且不能将if语句放在onclick方法中。

我希望能够在onClickListener之外获得变量preference,days,experience的值

android

java

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回答 2

Stack Overflow用户

发布于 2019-04-03 08:25:32

尝试：

if (day == 2 || preference == "Strength" || experience == "0-6 months")

或

if(day ==2 ){
    statements;
}
else if(preference == "Strength"){
    statements;
}
else if(experience == "0-6 months"){
    statements;
}
else {
    blank.setText("Test not working");
}