Question

我通过Intent传递一个int但是我不知道如何接收它因为我必须从OnCreate方法接收一个意图但是如果我把它放在那里我就不能将它与另一个int进行比较其余代码：我在这里发送意图：

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：

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

        }

Answer 1

您需要在声明中获取onCreate方法内传递的数据。

您还没有发送Bundle，而是在String发送了Intent。因此，您需要从String获取Intent。

这样做

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

还发送这样的数据

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

如何通过Intent接收int

1 个答案: