Question

我正在尝试将一个字符串从一个活动拉到另一个活动，但每次我尝试打开一个活动时，我都会在.getString上获得一个forceclose。

Logcat错误

10-26 10:36:45.444: ERROR/AndroidRuntime(15112):     at http.www.hotapp.com.timeandlocation.email.EmailSettings.onCreate(ThisActivity.java:29)

活动调用字符串

public class ThisActivity extends Activity{

private TextView reciever;
private String rec;

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

    reciever = (TextView) findViewById (R.id.Reciver);
    rec = 
        getIntent()
        .getExtras()
        .getString
        ("send");
    reciever.setText(rec);

}

字符串

的活动

public class OtherActivity extends Activity{
private EditText sendto;
private Button save;

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

    sendto = (EditText) findViewById(R.id.sendto);
    save = (Button) findViewById(R.id.Save);

    save.setOnClickListener(new OnClickListener(){
        public void onClick(View v){
            Intent intent = new Intent (EmailActivity.this,EmailSettings.class);
            intent.putExtra("send", sendto.getText().toString());
            startActivity(intent);
        }
    });
}
}

感谢您的帮助。

Answer 1

尝试使用getIntent().getStringExtra("send");

如果您想检查额外是否有用：

getIntent().hasExtra("send");

Answer 2

试试这个：

Bundle extras = getIntent().getExtras();
    if(extras !=null)
    {
        rec = extras.getString("send");
            }

Answer 3

通过从getString（）函数

中消除NULL EXCEPTION来尝试这个

强制关闭.getString？

3 个答案: