Question

我正在编写一个应用程序并需要显示地址，以便我以后可以使用它。我从LocationManager获取位置，并希望在按下时显示显示地址的Toast。我的问题是，当按下按钮时，没有任何反应。（甚至不在LogCat中）

以下是代码：

Button getTaxi = (Button) findViewById(R.id.GetTaxi);
getTaxi.setOnClickListener(new View.OnClickListener() {

    public void getAddress() {
        Geocoder geocoder = new Geocoder(getBaseContext(), Locale.getDefault());
        String result = null;
        try {
            List<Address> list = geocoder.getFromLocation(location.getLatitude(), location.getLongitude(), 1);
            if (list != null && list.size() > 0) {
                Address address = list.get(0);
                // sending back first address line and locality
                result = address.getAddressLine(0) + ", " + address.getLocality();
            }
        } catch (IOException e) {
            String exception = String.format("IOException!!");
            Toast.makeText(getApplicationContext(), exception, Toast.LENGTH_LONG);
        } finally {
            if (result != null) {
                Toast.makeText(getApplicationContext(), result, Toast.LENGTH_LONG);
            } else 
                Toast.makeText(getApplicationContext(), "nix is", Toast.LENGTH_LONG);
        }

        final Intent intent = new Intent();
        setResult(RESULT_OK, intent);
        finish();
        return;
    }

    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
    }
});

我知道它可能非常混乱，但我刚开始使用JAVA / Android编程。

提前非常感谢你！

Answer 1

请改为：

Button getTaxi = (Button) findViewById(R.id.GetTaxi);
getTaxi.setOnClickListener(new View.OnClickListener() {


    Toast toast;

    public void getAddress() {
        Geocoder geocoder = new Geocoder(getBaseContext(), Locale.getDefault());   
        String result = null;
        try {
            List<Address> list = geocoder.getFromLocation(
                    location.getLatitude(), location.getLongitude(), 1);
            if (list != null && list.size() > 0) {
                Address address = list.get(0);
                // sending back first address line and locality
                result = address.getAddressLine(0) + ", " + address.getLocality();
            }
        } catch (IOException e) {
            String exception = String.format("IOException!!");
            toast = Toast.makeText(getApplicationContext(), exception, Toast.LENGTH_LONG);
        } finally {

            if (result != null) {
                toast = Toast.makeText(getApplicationContext(), result, Toast.LENGTH_LONG);
            } else 
                toast = Toast.makeText(getApplicationContext(), "nix is", Toast.LENGTH_LONG);
        }




        final Intent intent = new Intent();
        setResult(RESULT_OK, intent);
        finish();
        return;
    }


    @Override
    public void onClick(View v) {
        getAddress();
        toast.show();
    }
});

Answer 2

未调用getAddress。在onClick方法中添加getAddress（）。

Answer 3

public void onClick(View v)需要包含代码，因为这是按下按钮时执行的操作。在您的情况下，看起来您只需在getAddress()内拨打onClick()。

Answer 4

你必须制作onclick metod然后你必须传递getAddress（）然后，当你点击按钮

时，你可以轻松地进行添加

将当前地址显示为Toast

4 个答案: