Question

我将Dialog用作Login。因此,在关闭该方言之后,方言显示的任何价值都丢失。如何收回这一价值? 我的法典如下:

private void accessPinCode()
{
    LayoutInflater factory = LayoutInflater.from(this);
    final View textEntryView = factory.inflate(R.layout.dialog_login, null);
    AlertDialog.Builder alert = new AlertDialog.Builder(this);                 
    alert.setTitle("Title");  
    alert.setMessage("Enter Pin :");                
    alert.setView(textEntryView);       

    alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {  
        public void onClick(DialogInterface dialog, int whichButton) {          
            EditText mUserText;
            mUserText = (EditText) textEntryView.findViewById(R.id.txt_password);
            //String strPinCode = mUserText.getText().toString();
            Log.d( TAG, "Pin Value 1 : " + mUserText.getText().toString());               
            strPIN = mUserText.getText().toString();
            Log.d( TAG, "strPIN inside accessPinCode : " + strPIN);
            fPIN= checkPINCode();
            Log.d( TAG, "fPass : " + fPIN);


            return;                  
        }  
    });  

    alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {

        public void onClick(DialogInterface dialog, int which) {
            // TODO Auto-generated method stub
            return;   
        }
    });

    alert.show();
    Log.d( TAG, "strPIN outside Alert Show : " + strPIN);
}

根据我的法典, PIN和FPIN的数值被丢失。 I wanna在PinCode之外使用这些价值。如何获得?

实际上,我把这一职能称为已改变的活动。如果记录通过,用户可以查阅另一个表格。但是,在点击Okohton之前,所有游艇都已经在打上了变换的活动。我的表态活动如下:

tabHost.setOnTabChangedListener(new OnTabChangeListener() {

            public void onTabChanged(String tabId) {
                // TODO Auto-generated method stub

                if (tabId.equals("index"))
                {
                    tabHost.setCurrentTab(1);
                    accessPinCode();
                }
                Log.d( TAG, "tabId : "+ tabId );    
            }
        });

是否有任何类型的糖尿病适合Login? 如何解决?

Answer 1

Edit:在你的负面/积极性 but子中,你必须从周围类别中指定一个职能,确定这两个参数,其数值载于。

例如:

private String mStrPin;
private float mFPin;

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

............

    alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {   
            String strPin = "1234";
            float fPin = 1.234f;
            public void onClick(DialogInterface dialog, int which) {
                loggedIn(strPin, fPin);
            }
    }

............

}
private void loggedIn(String strPin, float fPin) {
    mStrPin = strPin;
    mFPin = fPin;
}

Answer 2

简化实例:

public interface TextListener {
    void onPositiveResult(CharSequence text);
}

public static AlertDialog getTextDialog(Context ctx,
        final TextListener listener) {
    View view = LayoutInflater.from(ctx).inflate(R.layout.dialog, null);
    final TextView tv = (TextView) view.findViewById(R.id.tv);
    AlertDialog.Builder builder = new AlertDialog.Builder(ctx);
    builder.setView(view);
    //
    builder.setPositiveButton(android.R.string.ok, new OnClickListener() {

        @Override
        public void onClick(DialogInterface dialog, int which) {
            listener.onPositiveResult(tv.getText());
        }
    });
    builder.setNegativeButton(android.R.string.cancel, null);
    return builder.create();
}

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