Android版本从2.2更改为4.2.2

时间:2013-09-28 02:34:13

标签: java android

我在更改应用程序的Android版本时遇到问题。我已经在项目下的“Package Explorer”中说了Android 2.2,但是我尝试了一些更高版本,比如4.2.2,它没有用,但是当我尝试使用2.2时,它没有任何问题。 我尝试通过右键单击项目来更改版本>属性> Android> Android 4.2.2,但也没有用。这是我的sdk:

<uses-sdk android:minSdkVersion="9"    android:targetSdkVersion="17" />

在4.2.2我在日志中得到的东西:

  

09-28 02:27:13.088:W / System.err(785):at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
  09-28 02:27:13.088:W / System.err(785):at dalvik.system.NativeStart.main(Native Method)
  09-28 02:27:17.708:I / System.out(785):暂停loginauthactivity .......
  09-28 02:27:17.718:I / System.out(785):inside homeButton().......
  09-28 02:27:18.178:I / Choreographer(785):跳过121帧!应用程序可能在其主线程上做了太多工作   09-28 02:27:19.918:I / Choreographer(785):跳过39帧!应用程序可能在其主线程上做了太多工作   09-28 02:27:20.318:I / Choreographer(785):跳过62帧!应用程序可能在其主线程上做了太多工作。
  09-28 02:27:22.738:I / System.out(785):在menu_login里面

我班上的代码片段:

公共类LoginAuthActivity扩展了Activity {

private Button login;
private EditText username;
private EditText password;
private String user = null;
private String pwd = null;
private String status = null;
private boolean flag = false;
Boolean isInternetPresent = false;
boolean logged;

//class variables
AppEngineDAO ackDAO;
AlertDialogManager alert = null;
SessionManager session = null;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    //set the layout
    setContentView(R.layout.activity_login_auth);
    Toast.makeText(getApplicationContext(),
            "Inside LoginAuthActivity onCreate()", Toast.LENGTH_SHORT)
            .show();

    //creating object of the classes
    ackDAO = new AppEngineDAO();
    session = new SessionManager(getApplicationContext());
    alert = new AlertDialogManager();


    Toast.makeText(getApplicationContext(),
            "User Login Status: " + session.isLoggedIn(), Toast.LENGTH_LONG)
            .show();

    username = (EditText) findViewById(R.id.editusername);
    password = (EditText) findViewById(R.id.editpassword);
    login = (Button) findViewById(R.id.btnlogin);
    login.setOnClickListener(loginButtonListener);

}

private OnClickListener loginButtonListener = new OnClickListener() {
    public void onClick(View v) {
        Toast.makeText(getApplicationContext(),
                "Inside loginButtonListener OnClickListener()",
                Toast.LENGTH_SHORT).show();

        System.out.println("INSIDE login BUTTON .....");

        displayError();

        if (flag == false) {
            user = username.getText().toString().trim();
            pwd = password.getText().toString().trim();
            System.out.println("inside flag false.....");
            try {
                status = ackDAO.login(user, pwd,"student");
                System.out.println("status in login auth....." + status);
                if (status.equals("ok")) {
                    System.out.println("inside STATUS OK.....");
                    session.createLoginSession(user, pwd);
                    Intent i = new Intent(getApplicationContext(),
                            HomeActivity.class);
                    i.putExtra("user", user);
                    startActivity(i);
                    overridePendingTransition(R.anim.push_left_in, R.anim.push_up_out);
                } else if (status.equals("notok")) {
                    System.out.println("inside STATUS notOK.....");
                    alert.showAlertDialog(LoginAuthActivity.this,
                            "Login failed..",
                            "Username/Password is incorrect", false);
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
};

1 个答案:

答案 0 :(得分:0)

看到日志,你似乎在主线程中做了一些繁重的操作。将android版本更改为4.2后尝试清理项目,无需在清单或属性文件中手动更改sdk版本。