如何通过意图接收int [英] How to receive an int through an Intent

问题描述

我正在通过一个Intent传递一个int，但是我不知道如何接收它，因为我必须从OnCreate方法中接收一个intent，但是如果我将其放置在那里，则无法将其与其他Int进行比较.代码: 我在这里发送意图:

I am passing an int through an Intent but I do not know how to receive it because I have to receive an intent from the OnCreate method but if I place it there I can't compare it to another int in the rest of the code: Here I am sending the Intent:

public class HomeActivityPro extends ActionBarActivity {
EditText conttext = (EditText) findViewById ( R.id.texthome );
Button buttone = (Button) findViewById(R.id.buttone);
String maxom = conttext.getText().toString();
int maxam = Integer.parseInt(maxom);

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

    View.OnClickListener maxim = new View.OnClickListener() {
        @Override
        public void onClick (View view) {
            Intent wall = new Intent(HomeActivityPro.this, GuessOne.class);
            wall.putExtra("maxPressed", maxam);
            startActivity(wall);
        }
    };
    buttone.setOnClickListener(maxim);

我在这里收到它:

public class GuessOne extends ActionBarActivity {
    int randone;
    int contone;
    Bundle bundle;
    int maxnumpre = 0;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.layout_guess_one);
    Intent wall = getIntent();
    int maxnumpre = wall.getIntExtra("maxPressed", 0);}

但是在onCreate方法之后，我必须这样做:

But after the onCreate method I have to do this:

if (contone >= maxnumpre ){
            resultaone.setText("You Failed" + " " + maxnumpre);
            Toast.makeText(this, "You Failed", Toast.LENGTH_LONG).show();

        }

推荐答案

您需要获取不在声明中的onCreate方法内部传递的数据.

You need to get the data passed inside onCreate method not in the declaration.

此外，您没有发送Bundle，而是在Intent中发送了String.因此，您需要从Intent中获取String.

Also you are not sending a Bundle, you are sending a String in the Intent. So you need to get the String from the Intent.

像这样

public class GuessOne extends ActionBarActivity {
    int randone;
    int contone;
    Bundle bundle;
    String maxPressed = "";
    int maxcont = 0;

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

        maxPressed = getIntent().getStringExtra("maxNumberPressed");
        try {
            maxCont = Integer.parseInt(maxPressed);
        }
        catch (NumberFormatException e) {
            e.printStackTrace();
        } 
    }

    //the rest of the code

也发送这样的数据

Intent wall = new Intent(HomeActivityPro.this, GuessOne.class);
wall.putExtra("maxNumberPressed", conttext.getText().toString());
startActivity(wall);

这篇关于如何通过意图接收int的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！