I have a linear layout which I fill with imageviews everytime the user takes a picture with the camera. So these imageviews are added dynamically.
To each of these imageviews I attached an OnClick event to open the picture and show it in another imageview in another activity.
Each imageview has a tag containing an arraylist item with the bitmap information.
The OnClick event:
ImageView iv = new ImageView(this);
LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
iv.setLayoutParams(params);
iv.setImageBitmap(mBitmap);
iv.setTag(pli);
iv.setPadding(5, 5, 5, 5);
lvp.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
PhotoList pli = (PhotoList) arg0.getTag();
Intent i = new Intent(getBaseContext(), PhotoActivity.class);
i.putExtra("photo", pli.Photo);
i.putExtra("PhotoId", pli.id);
startActivity(i);
}
});
lvp.addView(iv);
Obviously the line with arg0.getTag() is not working.
Variable arg0 is of the linearlayout, but I need the clicked on imageview.
How do I detect wich imageview in the linearlayout was clicked on?
rg,
Eric
You have set the OnClickListener to the parent LinearLayout instead of the ImageView.
Instead of this:
lvp.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
...
}
});
Use this:
iv.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
...
}
});
Related
How do I make a single button width to fill parent programmatically? I have done this but it cannot seem to work it is still located on top left with width just wrapping the content... here is some of the code on the button creation...
public class TEST_GIFDisplay extends Activity implements View.OnClickListener {
SurfaceView sview;
GifRun gr = new GifRun();
Button btnBack;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
sview = new SurfaceView(this);
sview.setZOrderOnTop(true);
gr.LoadGiff(sview, this, R.drawable.smiley);
LinearLayout linearLayout1 = new LinearLayout(this);
linearLayout1.setOrientation(LinearLayout.VERTICAL);
linearLayout1.setBackgroundColor(Color.parseColor("#27ae60"));
linearLayout1.setLayoutParams(new ViewGroup.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT));
LinearLayout linearLayout2 = new LinearLayout(this);
linearLayout2.setOrientation(LinearLayout.VERTICAL);
linearLayout2.setBackgroundColor(Color.parseColor("#27ae60"));
linearLayout2.setLayoutParams(new ViewGroup.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT));
LinearLayout.LayoutParams p = new
LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
p.weight = 1.0f;
btnBack = new Button (this);
btnBack.setText("Back");
btnBack.setBackgroundColor(Color.parseColor("#f1c40f"));
btnBack.setGravity(Gravity.CENTER_HORIZONTAL);
btnBack.setLayoutParams(p);
btnBack.setOnClickListener(this);
linearLayout2.addView(btnBack);
linearLayout1.addView(linearLayout2);
linearLayout1.addView(sview);
setContentView(linearLayout1);
}
#Override
public void onClick(View view) {
btnBack = (Button) view;
btnBack.setBackgroundColor(Color.parseColor("#2980b9")); //color change
new CountDownTimer(100, 50) {
#Override
public void onTick(long arg0) {
// TODO Auto-generated method stub
}
#Override
public void onFinish() {
btnBack.setBackgroundColor(Color.parseColor("#f1c40f")); // original color
}
}.start();//end color changed
finish();
}
}
You are adding the Button to linearLayout2. You should change the linearLayout2's width to MATCH_PARENT
linearLayout2.setLayoutParams(new ViewGroup.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT));
I hope this helps.
P.S: You can create Button's selectors for pressed and selected states, instead of using timer to show a pressed button effect. Here is a basic link that can help you in achieving this : android button selector
I'm trying to use an image gallery for my application menu. The objective is that when the user click on a image it will send you to a particular activity. The problem is that I don´t know how to associate each image with each activity. For example if you click on the first image it opens a game, if you click on the second one you go to the application options... How can I do it?
public class Carrusel extends Activity implements OnClickListener {
ImageView lastClicked = null;
int padding = 10;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.start);
LinearLayout l;
l = (LinearLayout) findViewById(R.id.carrusel);
int[] images = new int[] { R.drawable.image1, R.drawable.image2,
R.drawable.image3,R.drawable.image4,R.drawable.image5};
for (int i = 0; i <5; i++) {
ImageView iv = new ImageView(this);
iv.setImageResource(images[i]);
iv.setPadding(padding, padding, padding, padding);
iv.setOnClickListener(this);
l.addView(iv);
}
}
#Override
public void onClick(View v) {
Intent i= new Intent (this, Flip3d.class);
startActivity (i);
}
}
The last "onClick" was a test of what I was trying. Obviously in this case all the images open the same activity, that is what I want to change.
Create on OnClickListener for each of your ImageViews.
iv.setOnClickListener (new OnClickListener() {
#Override
OnClick(View v) {
// start the activity you want
}
});
You can set ids for your imageview which can be used in onClick to identify your view.
protected void onCreate(Bundle savedInstanceState) {
// ...
for (int i = 0; i <5; i++) {
ImageView iv = new ImageView(this);
iv.setImageResource(images[i]);
iv.setPadding(padding, padding, padding, padding);
iv.setOnClickListener(this);
iv.setId(mIvIds[i]);
l.addView(iv);
}
}
public void onClick(View v) {
if (v.getId() == mIvIds[0]) {
Intent i= new Intent (this, Flip3d.class);
startActivity (i);
} else if (v.getId() == mIvIds[1]) {
// other stuff
} else if (v.getId() == mIvIds[2]) {
// ...
}
}
But firstly you need to generate new ids for mIvIds[]. In API17 was View.generateViewId() added for this feature. But if only your imageviews are attached to that onclick listener i think there should be no problem if you use some random integers (e.g. 1,2,3,... )
I'm trying to create pinterest like layout. I find a way to achieve this: Android heterogeneous gridview like pinterest?!
However the problem is: I want to view item details after clicking each picture. But as I am using LinearLayout.addView() to add all the ImageViews, I'm not sure how I can get it clickable?
Is there anyway to be able to click each item on the view?
You can do this pretty easily by adding tag information to your image view that can be displayed when clicked.
Adding your image view would look like:
ImageView iv = new ImageView(context);
iv.setOnClickListener(your_listener);
iv.setTag("Item information");
linearLayout.addView(iv);
Then in your click listener:
public void onClick(View v) {
if(v instanceof ImageView) {
String info = (String)v.getTag();
/* Show information here */
}
}
Use this :
view.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// ADD your action here
}
});
or make your class implement the OnClickListner Interface and override the onClick() method
Use:
imageView.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
//do magic
}
});
And in your layout file mark the ImageView as clickable:
<ImageView
...
android:clickable="true">
...
</ImageView>
Building on the code that you linked, you can add a listener to each image view as you create it:
linear1 = (LinearLayout) findViewById(R.id.linear1);
linear2 = (LinearLayout) findViewById(R.id.linear2);
linear3 = (LinearLayout) findViewById(R.id.linear3);
for(int i=0;i<n;i++)
{
ImageView iv = new ImageView(this);
iv.setImageResource(R.id.icon);
iv.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
//Your click code
}
}
int j = count % 3; <----
if(j==0)
linear1.addView(iv);
else if(j==1)
linear2.addView(iv);
else
linear3.addView(iv);
}
I'm new in android and i have created editText dynamically with the following code while clicking add new button.Is it possible to add a delete button near editText so that each while clicking the delete respective editText will be removed?
btnAddNew.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
LinearLayout rAlign = (LinearLayout)findViewById(R.id.lId);
EditText newPass = new EditText(getApplicationContext());
allEds.add(newPass);
newPass.setHint("Name of Label");
newPass.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
newPass.setWidth(318);
newPass.setTextColor(Color.parseColor("#333333"));
newPass.setId(textb);
rAlign.addView(newPass);
MY_BUTTON ++;
addSpinner();
}
});
Yes, create your remove button at the same time as your EditText and use the removeView() method just like the addView() method, maybe like this:
btnAddNew.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
...
rAlign.addView(newPass);
MY_BUTTON ++;
addSpinner();
Button btnRemoveOld = new Button(this);
btnRemoveOld.setId(32); // arbitrary number
btnRemoveOld.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
LinearLayout rAlign = (LinearLayout)findViewById(R.id.lId);
rAlign.removeView(findViewById(textb));
}
});
// You will need to set parameters to define how the button looks
// and where it is in relation to the EditText here
rAlign.addView(btnRemoveOld);
}
});
I have an application where i want to add onclicklistener to my individual items in pager.
Below is my screen shot . please some one tell me how to add onclicklistener to individual image in this current page .
Thanks
below is my code for pager view.
here when 1st time run the app initialize the every view page, when i try to click on image it return only last image info. But i want the current image info.
scroller = ((Pager)findViewById(R.id.scrollView));
indicator = ((PageIndicator)findViewById(R.id.indicator));
indicator.setPager(scroller);
// Pager pager = new Pager(this, attrs)
//indicator.getActivePage();
LayoutInflater layoutInflater = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View pageView = null;
for (int i = 0; i < NUM_PAGES; i++) {
pageView = layoutInflater.inflate(R.layout.page, null);
// ((TextView) pageView.findViewById(R.id.pageText)).setText("Page " + (i+1));
c=4*i;
imageView1 = (ImageView) pageView.findViewById(R.id.imageView1);
imageView1.setImageResource(icons[c]);
imageView2 = (ImageView) pageView.findViewById(R.id.imageView2);
imageView2.setImageResource(icons[c+1]);
imageView3 = (ImageView) pageView.findViewById(R.id.imageView3);
imageView3.setImageResource(icons[c+2]);
imageView4 = (ImageView) pageView.findViewById(R.id.imageView4);
imageView4.setImageResource(icons[c+3]);
// pageView.setBackgroundColor(COLORS[i % COLORS.length]);
imageView1.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
System.out.println("helo i clicked==>"+c);
}
});
imageView2.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
System.out.println("helo i clicked==>"+c);
}
});
imageView3.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
System.out.println("helo i clicked==>"+c);
}
});
imageView4.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
System.out.println("helo i clicked==>"+c);
}
});
scroller.addPage(pageView);
}
It seem to be you didn't read information available at android developers.
Use below code to add onClickListener for images. I don't know whether you are using ImageView or ImageButton. I took ImageView.
ImageView iv = new ImageView(/**Context you have to pass**/);
iv.setOnClickListener(new View.OnClickListener) {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
// do whatever you want
}
});
I hope it may help you.
set this on your images..or button
in the xml such that
<Button [...]
android:onClick: "onClick" [...]
/>
"onClick": name this whatever you want your method name that handles clicks to be
This can be done by assigning onClickListeners to Image Buttons. You can use Image buttons to display these images and set onClickListeners on them. Perhaps something like this can help?
ImageButton button = (ImageButton) findViewById(R.id.imageButton1);
button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// Do your stuff here
}
});
If you use ImageView then set the property OnClick to true.