我有對話框按鈕,然後在下面的相同的XML代碼創建timepicker:如何使用xml timepicker?
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TimePicker
android:id="@+id/timePicker1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<LinearLayout android:id="@+id/LinearLayout02" android:layout_height="wrap_content" android:layout_width="fill_parent">
<Button android:layout_height="wrap_content" android:id="@+id/dialog_ok" android:text="OK" android:layout_width="fill_parent" android:layout_weight="1"></Button>
<Button android:layout_height="wrap_content" android:text="Cancel" android:id="@+id/dialog_cancel" android:layout_width="fill_parent" android:layout_weight="1"></Button>
</LinearLayout>
</LinearLayout>
然後我在Java代碼中創建對話框,也帶來了從XML代碼對話框並timepicker在如下showen:
public void TimePickerDialog(){
final Dialog dialog = new Dialog(this);
dialog.setContentView(R.layout.sign_in_dialog);
/////////////////////updated code////////////////////
TimePicker timePicker1 = (TimePicker) findViewById(R.id.timePicker1);
timePicker1.setIs24HourView(true);
/////////////////////////////////
dialog.setTitle("Quick Mute");
//Allow the dialog to be cancelable
dialog.setCancelable(true);
// Here we add functionality to our dialog box's content. In this example it's the two buttons
//reference the button
Button okButton = (Button) dialog.findViewById(R.id.dialog_ok);
//Create a click listener
okButton.setOnClickListener(new OnClickListener() {
//override the onClick function to do something
public void onClick(View v) {
}
});
//reference the button
Button cancelButton = (Button) dialog.findViewById(R.id.dialog_cancel);
//Create a click listener
cancelButton.setOnClickListener(new OnClickListener() {
//override the onClick function to do something
public void onClick(View v) {
//Close the dialog</span>
dialog.dismiss();
}
});
//finally show the dialog
dialog.show();
}
這個問題我已經是我如何可以訪問到在XML代碼創建的,這樣我可以讓timepicker24小時timepicker的timepicker? ...以及我如何從xml代碼中的timepicker獲取時間?
當我試圖讓timePicker.getCurrentHour(); timePicker.getCurrentMinute();它給我nullpointeexception? – john
@約翰:你正在做的事情錯了,找不到'TimePicker'視圖。編輯你的問題,包括更新的代碼,並讓我知道。 –
嘿我更新了代碼 – john