Question

我每次点击DatePicker Fragment时都会尝试显示Button。但我得到了“不兼容的类型”：

public class InserirActivity extends BaseActivity implements BaseActivity.OnInfoChangedListener{
(...)    
public void clicando (View v){

            DialogFragment newFragment;
            newFragment = new DatePickerFragment();  
            newFragment.show(getFragmentManager(), "datePicker");
    }

问题发生在newFragment = new DatePickerFragment();，因为我收到错误"Incompatible Types"。由于与另一个Fragment的回调，此活动扩展到BaseActivity。

这是我的DatePickerFragment：

public class DatePickerFragment extends DialogFragment
        implements DatePickerDialog.OnDateSetListener {

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        // Use the current date as the default date in the picker
        final Calendar c = Calendar.getInstance();
        int year = c.get(Calendar.YEAR);
        int month = c.get(Calendar.MONTH);
        int day = c.get(Calendar.DAY_OF_MONTH);

        // Create a new instance of DatePickerDialog and return it
        return new DatePickerDialog(getActivity(), this, year, month, day);
    }

    public void onDateSet(DatePicker view, int year, int month, int day) {
        // Do something with the date chosen by the user

        Log.d("DatePicker","Here!");

    }
}

我称之为layout.xml的程序clicando()：

 <Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Ok"
    android:layout_marginRight="5dp"
    android:id="@+id/buttonOk"
    android:onClick="clickando"
    android:background="@drawable/buttons_1"
    android:textColor="@color/green7"/>

我已经在这里阅读了很多类似的问题/解决方案，但我找不到一个。你能帮我么？

Answer 1

在检查了我注意到的所有内容之后

import android.support.v4.app.DialogFragment;

而不是

import android.app.DialogFragment;

Android：Dialog Fragment和DatePicker Fragment不兼容的类型

1 个答案: