onlongclicklistener

问题 I am working on an Android application. In my app I have to show the video in the corner of the screen.Then If the user double clicked or longclicked I have to expand the video in to full screen. So i used the following code. vd.setOnLongClickListener(new OnLongClickListener() { @Override public boolean onLongClick(View v) { // TODO Auto-generated method stub if (!flag) { DisplayMetrics metrics = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(metrics); android.widget

问题 I am building an app that contains a WebView which will be used to show the user some links and some plain text. I want to make it so that the user can LongClick on a link, or a body of text and get the option to delete that thing from the html thats being shown in the WebView. This question got me half way there. LongClicking on the links works by using the wv.getHitTestResult() method. But now my problem is when I long click on plain text the onLongClick() method of the listener doesn't get

问题 I have a gridview and i want its items to act different if user performs click or long click that is why i am using OnItemClickListener and OnItemLongClickListener but when long click happens both listeners react.I want to perform only OnItemLongClickListener. 回答1: public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) { return true; } return true will be prevent click event to be continue. It will be perform only OnItemLongClickListener . 回答2: You can use

问题 Newest Edit ---------------------------------------------------------------------------- I updated code and it is correct now, although I cannot get the functionality to run. On long click event nothing happens... In My file that displays list of rows from database I put the code for setting OnLongClickListener but part of the code (commented) returns an error: The constructor ListView(Monday.MyDiary) is undefined . Here is my file with inserted new code: package com.example.classorganizer;

问题 I am trying to use a Long-Click listener on a Toggle Button to lock/unlock the normal click action of the button (to avoid accidental clicking). The below code seems to have no effect. I have tried .isActivated , .isCickable and .isEnabled properties without luck... Is it possible? final ToggleButton btnStartStop = (ToggleButton) findViewById(R.id.toggleAction); btnStartStop.setOnLongClickListener(new View.OnLongClickListener() { @Override public boolean onLongClick(View v) { // TODO Auto

问题 I am working onLongClickListner and DialogBox I wanted to add button , when i click on it open a dialogBox (It first ask do you want to select the button) after click on the DialogButton True it comes back to selected button then it hold button for a while to check the answer and If the answer is correct then it show Message "Answer is true" and wrong it show Message"Answer is False". Here Is my code :- public class QuestionActivity extends Activity implements OnClickListener{ private

问题 At the moment my buttons do not work. The first two times any are pressed all buttons are influenced rather than just the one that has been pressed. Swap: seatButton[i].setAlpha(255); For: seatButton[i].setImageResource(0x7f020007) And my code works! Only the button I press is effected. Why? @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); table = new Table(); //Creates Table seatButton = new ImageButton[10]; /

问题 I am using the TabLayout found in the Service library. I have tried to add an OnLongClickListener when long-clicking on a tab. It has been impossible for me. I have even been trying to "hack" it by using childViews: View tabLayoutChild = tabLayout.getChildAt(0); ViewGroup group = (ViewGroup) tabLayoutChild; group.getChildAt(0).setOnLongClickListener(this); Doesn't work and does NOT look pretty. It is all very handy except for the longClick I want to implement. My small snippet of code

问题 I need to be able to tell when the user is holding a button down and when the user lets go. This is different from onClickListener and onLongClickListener. How would i go about doing something like this? For example I press a button that starts a chronometer.(pseudo code) if ButtonIsBeingPressed { chronometer start(); //and keep going } else chronometer stop(); //or on release or something } 回答1: Look into the OnTouchListener it has MotionEvents for Down (press) and Up (release): view

问题 Here, I have a view pager that is shared by multiple Fragments which all are contained in a TABLayout as shown below <RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent" xmlns:app="http://schemas.android.com/apk/res-auto" android:orientation="vertical" xmlns:android="http://schemas.android.com/apk/res/android"> <android.support.v7.widget.Toolbar android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="?attr/actionBarSize" android