我有一组activities
都扩展了一个baseActivity
.
我正在尝试设置它,title in the BaseActivity
以便它反映在所有子活动中。
该应用程序正在登录用户。我试图username across the title
在他们登录后进入每个屏幕。
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
public class NfcBaseActivity extends Activity{
private static final String TAG = NfcBaseActivity.class.getSimpleName();
String carername;
public String getCarername() {
return carername;
}
public void setCarername(String carername) {
this.carername = carername;
Log.e(TAG, "setting carername to " + this.carername);
setTitle(carername + " is currently logged in");
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setTitle(getCarername() + " is logged in");
}
}
@Override
protected void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.entryscreen);
nfcscannerapplication = (NfcScannerApplication) getApplication();
//loginWebservice = new LoginWebservice(this);
loginWebservice = nfcscannerapplication.loginWebservice;
userName = (EditText)findViewById(R.id.username);
passwordPin = (EditText)findViewById(R.id.password);
login = (Button)findViewById(R.id.buttonlogin);
login.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
////////////get user's input///////////
compId = "100";
String theUsername = userName.getText().toString();
thePassword = passwordPin.getText().toString();
String loginType = "1";
String[] params = new String[]{compId, theUsername, thePassword, loginType};
//validate user Asynchonously on background thread
AsyncValidateCarer avc = new AsyncValidateCarer();
avc.execute(params);
EntryActivity.this.setCarername(fullName);
}// end of onclick
});
我调用AsyncTask
which 验证用户是否针对 web 服务,然后将实例变量 fullName 设置为用户名。
这个 AsyncTask 是从 Activity 的onClick()
. 我使用下面的方法来调用活动的超类方法setcarer()
,该方法在超类中设置标题。
我希望这种变化会反映在所有其他扩展超类的类中。
为什么这没有得到反映?
EntryActivity.this.setCarername(fullName);