在edittext中爲setText值引發錯誤。 Id給定是正確的,如果我給set嘗試在空對象引用上調用虛擬方法'void android.widget.EditText.setText(java.lang.CharSequence)'導致空指針異常
下面給出的代碼我不能setText Otp代碼「 otpcode.setText( 「12345」);」在創造它完美的作品。 當我給它的方法「recivedSms」,它沒有工作。
public class Change_Password_Activity extends AppCompatActivity {
EditText user_name,pass_wd;
public EditText otpcode;
private Button btn_submit;
private String username,otp,password;
private ProgressDialog prgDialog;
private Typeface typeface;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_change__password_);
typeface = GlobalVariables.getTypeface(Change_Password_Activity.this);
prgDialog = new ProgressDialog(this);
// Set Progress Dialog Text
prgDialog.setMessage("Please wait...");
// Set Cancelable as False
prgDialog.setCancelable(false);
otpcode = (EditText)findViewById(R.id.otpedittext);
user_name = (EditText) findViewById(R.id.edittext_ch_user);
pass_wd = (EditText) findViewById(R.id.edittext_ch_passwd);
btn_submit = (Button) findViewById(R.id.button_changepswd);
otpcode.setTypeface(typeface);
user_name.setTypeface(typeface);
pass_wd.setTypeface(typeface);
btn_submit.setTypeface(typeface);
}
public void recivedSms(String message)
{
try
{
int smsnumbr= Integer.parseInt(message);
otpcode.setText(smsnumbr);
}
catch (Exception e)
{
Log.e("error", String.valueOf(e));
}
是否onCreate總是在receivedSms之前調用? –
何時何地receivedSms叫? – zgc7009
收到短信方法onCreate後調用 – susaine