Develop Reference

How to add onclicklistener to dynamically generated textViews?

I write code to generate dynamic TextViews as a user what he looked like and any time
, But the problem each text view has only one click,
And any other click on textView does not reach onClick
I found some answers but not work with my code... Please help me.
This is my code
RelativeLayout mainBackground = findViewById(R.id.mainBackground);
private void AddTextView() {
RelativeLayout.LayoutParams lparams = new
RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
final TextView tv = new TextView(this);
tv.setId(textCount);
tv.setLayoutParams(lparams);
tv.setText(text);
tv.setTextColor(colorChooser);
tv.setTextSize(size);
tv.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Log.d("textID",view.getId()+"");
}
});
this.mainBackground.addView(tv);
}

Dynamically add LinearLayout into LinearLayout

I have a issue trying to dynamically add some linear layout into a linearlayout container after user have clicked on a button.
private void AddView() {
MyView myView1 = new MyView("Name");
this.mainLinearLayout.addView(myView1);
}
This code works great in activity's onCreate method but not after handling user event.
Do you have any idea why it's not working ? (I mean nothing appears on UI)
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
AddView(); => works great
}
playButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
AddView(); => not working
}
});
Thanks,

I think that AddView is wrong.
private void addView() {
LayoutParams lparams = new LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
MyView myView1 = new MyView("Name");
myView1.setLayoutParams(lparams);
this.mainLinearLayout.addView(myView1);
}

Programmatically create ImageView in Android

I followed this to create a simple animation.
The example creates manually an ImageView in the main layout, having a resource like this android:src="#anim/anim_android
The problem is, when I make a dynamic ImageView, and I set the resource like this myImageView.setImageResource(R.anim.anim_android);, the animation doesn't work, just views the first image of the sequence.
Any help?
Thanks.

you sould start the animation from you imageView :
myImageView.setImageResource(R.anim.anim_android);
final AnimationDrawable myAnimationDrawable = (AnimationDrawable)myImageViewn.getDrawable();
myImageView.post(
new Runnable(){
#Override
public void run() {
myAnimationDrawable.start();
}
});
}
EDIT : i think you didn't add the ImageView to your Layout ( contentView of your Activity ) ; try this :
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
RelativeLayout rootLayout = new RelativeLayout(this);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
rootLayout.setLayoutParams(params);
ImageView myAnimation = new ImageView(this);
RelativeLayout.LayoutParams paramsImage = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
paramsImage.addRule(RelativeLayout.CENTER_IN_PARENT);
myAnimation.setLayoutParams(paramsImage);
myAnimation.setImageDrawable(getResources().getDrawable(R.anim.anim_android));
rootLayout.addView(myAnimation);
setContentView(rootLayout);
final AnimationDrawable myAnimationDrawable = (AnimationDrawable)myAnimation.getDrawable();
myAnimation.post(new Runnable() {
#Override
public void run() {
myAnimationDrawable.start();
}
});
}

dynamically added imageviews which one is clicked on?

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) {
...
}
});

Android : How to set TextViews positions depending on other ones programatically?

I want to put elements in my view depending on the position of the other ones. Let me explain : First, I have two textviews and I've put successfully the second (villeOffre) one under the first one (titreOffre) :
titreOffre = (TextView) findViewById(R.id.offreTitre);
titreOffre.setText(capitalizedString(offre.getTitle()));
villeOffre = (TextView) findViewById(R.id.offreVille);
villeOffre.setText(offre.getLocality());
infos = (TextView) findViewById(R.id.infos);
ViewTreeObserver vto = titreOffre.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener(
{
#Override
public void onGlobalLayout()
{
FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) villeOffre.getLayoutParams();
params.setMargins(15,titreOffre.getBottom()+12,15,0);
villeOffre.setLayoutParams(params);
titreOffre.getViewTreeObserver().removeOnGlobalLayoutListener(this);
}
});
This works perfectly, but now I want to put a third textview (infos) which is depending on villeOffre position. How to do that ?
Thanks a lot.

public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
rr = new RelativeLayout(this);
b1 = new Button(this);
b1.setId(R.id.Button01);
recent = b1;
b1.setText("Click me");
rr.addView(b1);
setContentView(rr);
b1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
tv1 = new TextView(can.this);
tv1.setId((int)System.currentTimeMillis());
lp = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
lp.addRule(RelativeLayout.BELOW, recent.getId());
tv1.setText("Time: "+System.currentTimeMillis());
rr.addView(tv1, lp);
recent = tv1;
}
});
}