buttonclick

问题 I have a button in my menu with a “promo code” inside. I need to check if a user already clicked it so I can tell him (the next time he clicks it) “You already redeemed this promo code!” How do I do that? I need only the piece of code where I can check for button clicked. @Override public boolean onOptionsItemSelected(MenuItem item) { boolean clicked = false; switch (item.getItemId()) { case R.id.getcode: SharedPreferences pref = getSharedPreferences("promo", MODE_PRIVATE); boolean activated

问题 I am using custom adapter to show the items in my ArrayList. Each row item has 2 textViews and an image button. Depending on the status of an attribute, image on the image button is changing. Although it seems quite easy, I couldn't find a way to get some information from row item(orderID in my case), when image button is clicked. This is my custom adapter class public class OrderedAdapter extends ArrayAdapter<RMOrder> { private Context context; private RMOrder rowItem; private ListView lv;

问题 I have a custom UIButton created with xib file. When i use my custom button on my view, it does not work when i press to it. My RoundBtn.swift file: import UIKit @IBDesignable class RoundBtn: UIButton { var nibName = "RoundBtn" @IBOutlet weak var btnImageView: UIImageView! @IBOutlet weak var btnLabel: UILabel! @IBInspectable var image: UIImage? { get { return btnImageView.image } set(image) { btnImageView.image = image } } @IBInspectable var label: String? { get { return btnLabel.text } set

问题 I have a custom notification with three buttons ("ok", "cancel", "later") I can catch click event only when there is one button, but with the three buttons i can't know which button of them is clicked. My question is "How to know which button is clicked?" // I use this code in My "createNotification" function to add event to buttons Intent intent = new Intent(Context.NOTIFICATION_SERVICE); PendingIntent pendinghomeIntent = PendingIntent.getBroadcast(getBaseContext(), 0, intent, 0);

问题 In my application, I am trying to display the numeric keypad when the user clicks on a button. When the button is clicked, I shift the focus to the EditText in my layout using requestFocus() and next I need to display the numeric keypad so that the user can type in the values.. The values will always be numeric and hence I need to show only the numeric keypad. I tired using this inside my button's onClick() method but it does not work. InputMethodManager imm = (InputMethodManager

问题 function listContents(storagename) { alert("inside function"); //Clear up the list first $('#results').html(""); var files = navigator.getDeviceStorage(storagename); var cursor = files.enumerate(); cursor.onsuccess = function () { //alert("Got something"); var file = this.result; if (file != null) { var tagvalue = $("<p>" + file.name + "," + file.lastModifiedDate + "," + file.type + "," + file.size + "</p>").appendTo('#results'); console.log('tagvalue is ' + tagvalue); tagvalue.appendTo("

问题 how to open the following directory:settings/wireless and networks/Tethering and portable hotspot/portable Wi-Fi hotspot settings/configure portable Wi-Fi hotspot/ on button click? i want to achieve this using onClick method not id method. below is my code <RadioButton android:onClick="togglewifi" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:checked="true" android:text="Toggle Wifi"

问题 I have 50 dynamically generated HTML buttons as follows: <input type="button" id="btn1" name="myButton" value="Click Me" /> <input type="button" id="btn2" name="myButton" value="Click Me" /> : : : <input type="button" id="btn50" name="myButton" value="Click Me" /> Which is the best way to assign click event to all buttons using jQuery? By using id or by using name attribute ? 回答1: Event listeners cost memory. You have to think carefully about how you should implement the listeners. 1. The

问题 I come to you on bended knee, question in hand. I am relatively new to Android, so pardon any sacrilegious things I might say. Intro: I have several layouts in the app, that all have to include a common footer. This footer has some essential buttons for returning to the home page, logging out, etc. I managed to get this footer to appear in all the requisite pages with the help of the Include and Merge tags. The issue lies in defining on click listeners for all the buttons. Although I can

问题 Here is the code: button.setOnClickListener(new View.OnClickListener() { @Override public void onClick (View view){ Intent contactPickerIntent = new Intent(Intent.ACTION_PICK, ContactsContract.CommonDataKinds.Phone.CONTENT_URI); startActivityForResult(contactPickerIntent, RESULT_PICK_CONTACT); } }); return view;} public void but(View v) { Intent contactPickerIntent = new Intent(Intent.ACTION_PICK, ContactsContract.CommonDataKinds.Phone.CONTENT_URI); startActivityForResult(contactPickerIntent,