I am trying to attempt the below :
What i am trying to do is whenever a user click on a button, it will add a image to the layout(which the user can scale and move to any position within the layout). The user can repeat this process hence if the user click 6 times on the button, there should be 6 image in the layout.
i have google around, looking for some sample but ain't sure if its the correct one to use. maybe i did not use the correct keyword to search. So far i have seen is endless adapter and RecyclerView but both seen to be mainly for "ListView" type.
Anyone can suggest or share a link/example that i can read up and learn from? It will be a great help.
If you want to add image on button click set on-click listener on it. You need to get how many time the user have clicked the button.
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
//get adapter and view
//get image to add
addImage(i); //to desire view
}
});
Related
How do i get a specific view inside of a RecyclerView item? For example I have a floating action button inside of a recyclerview item. The recyclerview card can swipe to trigger an event (new activity) and when the user swipes i am making the fab invisible. I want so that when the user returns back to the activity with the recyclerview, the fab is visible again.
I've tried to implement this a few ways, but for some reason it's taking the fab from the NEXT card/item and placing it on the original card/item that was swiped. This is a problem because the next card might have a different colored fab or no fab at all. What is happening is that it's taking the most recent viewholder item, even if the previous one is the one I want to deal with.
So i need a way to reference the fab in the current item. I'm currently setting it to currentFab = holder.mFab (but again, it's taking the most recent holder item even though it's not the one I pressed on). I need a way to reference the fab in a specific item.
I've tried something similar in the past, I've added the Swipe function in "onBindViewHolder ", Using a Swipe Library.
What I have made is, A CardView, Inside it there are 2 Strings, And a Button, this Button will be invisible according to specific conditions, So because it's inside onBindVewHolder, it was easy to make some edits on the button.
Here's a sample :
holder.Button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
holder.Button.setVisibility(View.GONE);
}
});
Ofcourse this isn't a "fully working code" it's just an example, Plus you didn't put any code that you have tried.
I'm using a ListView to show some images and names in my application. I can make the ListView tiles clickable and start new activities as well . But now i want to do different actions for the different items that are on one listview tile. If user clicks on image, image opens and the textView will show some toast or something. The ImageView and TextView are on the same ListView Tile. How can i achieve this? Any Help?
Define OnClickListener events in your adapter for the button and textview as required and you are done. They will precede the click event for the list item by default.
if the contained views in your custom row layout does not have a click event it will fall back to the click event of the list view item.
You can implement click event in adapter, but you also implement it in activity.
You can find solution in :http://www.migapro.com/click-events-listview-gridview/
hope it can help you.
Some note: should not use view holder in gridview like above tuturial, it can make some bug, can implement direct like this:
button1.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
((ListView) parent).performItemClick(v, position, 0); // Let the event be handled in onItemClick()
}
});
Another way to implement this elegantly is to add secondary views called 'accessories' to the item views associated with your ListView. This is explaned quite well in the link below by Cyril Mottier: A Google Developer Expert on the Android platform:
http://cyrilmottier.com/2011/11/23/listview-tips-tricks-4-add-several-clickable-areas/
I've got a questions. I have an OnClick method. So user clicks on button it randomly gens image. So when he finds the similar image and clicks on it I need to do OnClick from the beginning.
No, there is a point:
1.User click on 1 image
2. It generates the second image
3. 3 different images is already on the desk and he needs to find the proper image.
Ok,
If a = b, then do the onClick method for image 1.
Assuming you want the user to click on image to generate new image, then you can use ImageButton for this. Add OnClickListener to this button and change the image in that listener.
Tutorial here
I wanted to develop an on screen keyboard similar to the square app (image below)
I would appreciate it if anyone could give me tips on which classes to focus on/ override for this. In particular, how do I associate the button clicks to the number input in the EditText field?
Every Button gets a Tag with the associate value (for example 1). Then, you use the android:onClick-attribute to set all buttons to the same method (input() for example) in the activity.
This method will be called with the clicked view, which you can then use the getTag()-method on to get the corresponding value:
// Will be called for every Button that is clicked
public void input(View v){
Log.v("APP", "Pressed: "+v.getTag());
}
Organize the Buttons in a GridLayout (GridView might also be possible).
Im working on a school project and it's my first time on android development. I've searched the whole web but couldn't find any answers to my problem. I have a list of images and i would like to put them on one screen and the user would be able to navigate through these images without changing the whole screen. Also Im trying to put an AutoComplete search box to call any image from the list on the same screen. I tried to use viewFlipper method but did not work out. Is there any other way to do it?
You could add an onClick listener to the ImageView. Something like this:
ImageView imgFavorite = (ImageView) findViewById(R.id.favorite_icon);
imgFavorite.setClickable(true);
imgFavorite.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
//Change the image here.
}
});
Source: Android ImageView's onClickListener does not work