Question

我正在使用TabHost和片段创建一个带有标签界面的应用程序，用户需要使用TimePickerDialog选择时间，并将选定的时间填充到EditText视图中，因此我将时间选择器移动到片段中我可以在多个选项卡中使用它，但是问题是当我使用对话框设置时间时，填充的EditText视图是最后一个选项卡中的那个，而不是打开TimePickerDialog的那个，我该如何处理？ / p>

这是时间选择器片段的布局

#include "/root/dev/Practice/include/FileWriter.h"
#include <fstream>

// g++ linker error if 'inline' not included - why?
inline FileWriter::FileWriter(std::string fileName)
{
    this->fileLocation = fileName;
    const char * x = this->fileLocation.c_str();
    this->filestream = new std::ofstream();
    this->filestream->open(x, std::ios::out | std::ios::app);
}

inline FileWriter::~FileWriter()
{
    this->filestream->close();
}

inline void FileWriter::AddLine(std::string line)
{
    *this->filestream << line << std::endl;
}

以下是填充EditText视图的代码，该视图存储在 MainActivity.java

中

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
         xmlns:tools="http://schemas.android.com/tools"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         tools:context="com.ztech.fakecallm.TimePickerFragment">
<EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:inputType="time"
        android:ems="10"
        android:id="@+id/timePicker"
        android:focusable="false"
        android:hint="@string/time"
        android:onClick="onClickTime"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp"
        android:layout_alignParentStart="true"
        android:layout_alignParentEnd="true"/>
</RelativeLayout>

这是代表第一个标签的片段布局

public void onClickTime(View view) {

    final Calendar c = Calendar.getInstance();

    int cHour = c.get(Calendar.HOUR_OF_DAY);

    int cMinute = c.get(Calendar.MINUTE);

    TimePickerDialog timePickerDialog = new TimePickerDialog(this, new TimePickerDialog.OnTimeSetListener() {
        @Override
        public void onTimeSet(TimePicker view, int hourOfDay, int minute) {

            c.set(Calendar.HOUR_OF_DAY, hourOfDay);

            c.set(Calendar.MINUTE, minute);

            scheduleDate = c.getTime();

            SimpleDateFormat dateFormat = new SimpleDateFormat("hh:mm a", Locale.US);

            EditText timeInput = (EditText)findViewById(R.id.timePicker);

            timeInput.setText(dateFormat.format(scheduleDate));

        }
    }, cHour, cMinute, false);

    timePickerDialog.show();

}

和代表第二个标签的片段的布局

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
         xmlns:tools="http://schemas.android.com/tools"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         tools:context="com.ztech.fakecallm.CallsFragment">
<fragment
        android:id="@+id/contact_picker_frag"
        class="com.ztech.fakecallm.ContactPickerFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:layout="@layout/fragment_contact_picker"/>
<RadioGroup android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:gravity="center"
            android:id="@+id/radioGroup"
            android:layout_marginTop="137dp"
            android:layout_alignParentTop="true"
            android:layout_alignParentStart="true">
    <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/incoming"
            android:id="@+id/incomingRadioButton"
            android:checked="true"
            android:layout_margin="20dp"/>
    <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/outgoing"
            android:id="@+id/outgoingRadioButton"
            android:checked="false"
            android:layout_margin="20dp"/>
    <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/missed"
            android:id="@+id/missedRadioButton"
            android:checked="false"
            android:layout_margin="20dp"/>
</RadioGroup>

<fragment
        android:id="@+id/time_picker_fragment_calls"
        class="com.ztech.fakecallm.TimePickerFragment"
        tools:layout="@layout/fragment_time_picker"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/radioGroup"
        android:layout_alignParentStart="true"/>
<Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/schedule"
        android:id="@+id/setCallScheduleButton"
        android:layout_margin="20dp"
        android:layout_alignParentBottom="true"
        android:layout_alignParentEnd="true"
        android:layout_alignParentStart="true"/>


</RelativeLayout>

毕竟 MainActivity 看起来像这样

 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
         xmlns:tools="http://schemas.android.com/tools"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         tools:context="com.ztech.fakecallm.SMSFragment">

<fragment
        android:id="@+id/contact_picker_frag_sms"
        class="com.ztech.fakecallm.ContactPickerFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:layout="@layout/fragment_contact_picker"/>

<EditText
        android:layout_width="wrap_content"
        android:layout_height="150dp"
        android:id="@+id/message_input"
        android:gravity="top"
        android:hint="@string/message"
        android:layout_marginTop="140dp"
        android:layout_alignParentStart="true"
        android:layout_alignParentEnd="true"/>

<RadioGroup
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:gravity="center"
        android:id="@+id/radioGroup"
        android:layout_below="@+id/message_input"
        android:layout_alignParentStart="true">
    <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/inbox"
            android:id="@+id/inbox_radio_button"
            android:checked="true"
            android:layout_margin="20dp"/>
    <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/sent"
            android:id="@+id/sent_radio_button"
            android:checked="false"
            android:layout_margin="20dp"/>
</RadioGroup>

<fragment
        android:id="@+id/time_picker_fragment_sms"
        class="com.ztech.fakecallm.TimePickerFragment"
        tools:layout="@layout/fragment_time_picker"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/radioGroup"
        android:layout_alignParentStart="true"/>

<Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/schedule"
        android:id="@+id/setSMSScheduleButton"
        android:layout_margin="20dp"
        android:layout_alignParentBottom="true"
        android:layout_alignParentEnd="true"
        android:layout_alignParentStart="true"/>

 </RelativeLayout>

Answer 1

使用此

enter link description here

   dependencies {
  compile 'com.wdullaer:materialdatetimepicker:2.3.0'
}

和

将您的片段实施为OnTimeSetListener

并在片段中显示TimePickerDialog

Calendar now2 = Calendar.getInstance();
                TimePickerDialog tpd = TimePickerDialog.newInstance(
                        NewActivity.this, now2.get(Calendar.HOUR_OF_DAY), now2.get(Calendar.MINUTE),
                        now2.get(Calendar.SECOND), false
                );
                tpd.show(getFragmentManager(), "Select Time");

并且

@Override
public void onTimeSet(RadialPickerLayout view, int hourOfDay, int minute) {
  String time = "You picked the following time: "+hourOfDay+"h"+minute;
  timeTextView.setText(time);
}

如何在多个使用过的片段中设置EditText视图的文本？

1 个答案: