小编Eul*_*nte的帖子

我已经从我的手册和互联网上阅读了许多解释getView方法的教程,但我不明白为什么他们使用它.有人可以用一些例子或片段向我解释一下吗？

我在活动中遇到一个问题:我想读取Ordinazioni.txt前一个活动中正确编写的所有文件,将它们放入一个并将其中的ArrayList每个元素写入MySQL数据库.

现在,PHP文件和文件是正确的,我已经单独检查了它们的工作,但此时LogCat阻止了应用程序.所以,在这里你是活动和LogCat.

public class AggiungiProdotto extends Activity {

    TextView tv1;
    private static String indirizzo ="http://10.0.2.2/tesina/Aggiungi_Ordinazione";
    FileInputStream in = null;
    InputStreamReader inputStreamReader = new InputStreamReader(in);
    BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
    HttpClient httpclient = new DefaultHttpClient();
    HttpPost httppost = new HttpPost(indirizzo);
    StringBuilder sb = new StringBuilder();
    int Tavolo = 1;
    String line;
    public ArrayList<String> Lettura = new ArrayList<String>();

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.aggiungi_prodotto);
        Invio();
    }

    public void Invio() {
        try {
            FileInputStream in = openFileInput("Ordinazioni.txt"); …