Develop Reference

How to set textview position when created dynamically in Android Studio

I want to dynamically change the position of the textview list dynamically. Here's what I have tried so far:
final TextView[] myTextViews = new TextView[N]; // create an empty array;
TextView rowTextView = new TextView(Oyun.this);
rowTextView = (TextView)findViewById(R.id.parent);
myTextViews[atesSayac].setText("This is row #" + atesSayac);
myTextViews[atesSayac] = rowTextView;
RelativeLayout.LayoutParams layoutParams = (RelativeLayout.LayoutParams)myTextViews[atesSayac].getLayoutParams();
layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
RelativeLayout.LayoutParams layoutParams2 = (RelativeLayout.LayoutParams)myTextViews[atesSayac].getLayoutParams();
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
myTextViews[atesSayac].setLayoutParams(layoutParams);
myTextViews[atesSayac].setLayoutParams(layoutParams2);
myTextViews[atesSayac].setTranslationX(locationX);
myTextViews[atesSayac].setTranslationY(locationY);
atesEt.addView(myTextViews[atesSayac]);

handling programatically created layout from xml: ids challenge

I need to be able to add a layout to my main layout from xml file many times programatically.
The problem is handling assigning ids of the new layout's views. See the code:
MainFragment.java
private int belowOfWhat = R.id.layout_header;
...
onActivityResult:
LayoutInflater myInflater = LayoutInflater.from(getContext());
RelativeLayout layout = (RelativeLayout) myInflater.inflate(R.layout.assignment_layout, null, false);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,ViewGroup.LayoutParams.WRAP_CONTENT);
//here problems start
//i want to position the new layout below the previously created layout
params.addRule(RelativeLayout.BELOW, belowOfWhat);
layout.setLayoutParams(params);
mRelativeLayout = rootView.findViewById(R.id.to_do_layout);
mRelativeLayout.addView(layout);
belowOfWhat = generateViewId();
idsOfToDos.add(belowOfWhat);
CheckBox assignmentCheckbox = (CheckBox)
//assignment_checkbox is an id of checkbox in the xml layout I add
rootView.findViewById(R.id.assignment_checkbox);
assignmentCheckbox.setId(belowOfWhat);
assignmentCheckbox.setText(mToDoInfo);
I don't know where the problem is, so here is how the app works now: I add a new layout, it gets positioned correctly below layout_header.
But when I add the second or more layouts they overlap each other on top of the app instead of being positioned one below the other.
I'd appreciate if you guided me to the solution of the problem.

If you don't need views'ids for other purposes you could solve more simple.
If I've understood what you are trying to do, what you need is a vertical LinearyLayout instead of a RelativeLayout, then subviews will be added one below each other

You have to use Relative Layout and use the following properties with that to align the views.
RelativeLayout.BELOW
RelativeLayout.RIGHT_OF
RelativeLayout.ALIGN_BOTTOM
RelativeLayout layout = new RelativeLayout(this);
RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
layout.setLayoutParams(layoutParams);
RelativeLayout.LayoutParams params1 = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
RelativeLayout.LayoutParams params2 = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
RelativeLayout.LayoutParams params3 = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
RelativeLayout.LayoutParams params4 = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
TextView tv1 = new TextView(this);
tv1.setId(1);
tv1.setText("textView1");
TextView tv2 = new TextView(this);
params2.addRule(RelativeLayout.RIGHT_OF, tv1.getId());
tv2.setId(2);
tv2.setText("textView2");
TextView tv3 = new TextView(this);
params3.addRule(RelativeLayout.BELOW, tv1.getId());
tv3.setId(3);
tv3.setText("textView3");
TextView tv4 = new TextView(this);
params4.addRule(RelativeLayout.RIGHT_OF, tv3.getId());
params4.addRule(RelativeLayout.ALIGN_BOTTOM, tv3.getId());
tv4.setId(4);
tv4.setText("textView4");
layout.addView(tv1, params1);
layout.addView(tv2, params2);
layout.addView(tv3, params3);
layout.addView(tv4, params4);
hope so it gives you an idea how to align views pragmatically.

Dynamically create Imageviews

I have to create Dynamically list of Imageview in a row, There is an other Imageview (dot Drawable) under Each Imageview.
see below pic which is my desired view.
Here is my source.
for (int i = 0; i < 9; i++) {
RelativeLayout.LayoutParams params1 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
RelativeLayout.LayoutParams params2 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
ImageView catImg = new ImageView(getApplicationContext());
catImg.setImageResource(bottDrawableArr[i]);
catImg.setId(View.generateViewId());
int dp = (int) utiles.convertDpToPixel(27, getApplicationContext());
params1.height = dp;
params1.width = dp;
ImageView dotImg = new ImageView(getApplicationContext());
dotImg.setImageResource(R.mipmap.dot);
dotImg.setId(View.generateViewId());
params2.addRule(RelativeLayout.BELOW, dotImg.getId());
dockBg.addView(catImg, params1);
dockBg.addView(dotImg, params2);
}
But I am Unable to get my desire view,
while my views show like this
I tried to put dot under each image but unable to achieve that.

The best way is working with some LinearLayout, something like this:
LinearLayout layout = new LinearLayout(this);
layout.setOrientation(LinearLayout.HORIZONTAL);
for (int i = 0; i < 9; i++) {
LinearLayout layoutChild = new LinearLayout(this);
layoutChild.setOrientation(LinearLayout.VERTICAL);
RelativeLayout.LayoutParams params1 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
RelativeLayout.LayoutParams params2 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
ImageView catImg = new ImageView(getApplicationContext());
catImg.setImageResource(bottDrawableArr[i]);
catImg.setId(View.generateViewId());
int dp = (int) utiles.convertDpToPixel(27, getApplicationContext());
params1.height = dp;
params1.width = dp;
ImageView dotImg = new ImageView(getApplicationContext());
dotImg.setImageResource(R.mipmap.dot);
dotImg.setId(View.generateViewId());
params2.addRule(RelativeLayout.BELOW, dotImg.getId());
layoutChild.addView(catImg, params1);
layoutChild.addView(dotImg, params2);
layout.addView(layoutChild);
}
dockBg.addView(layout);
Note: it's better to delete the unnecessary properties like setting some rules...

params2.addRule(RelativeLayout.BELOW, dotImg.getId());
This line of code looks like you are trying to add a rule to put the dotImg below the dotImg. Replacing that with catImg.getId() should fix your issue.
It might be a good idea to consider a RecyclerView though, Or if it is a static array (always the same items) then you could make a new layout file and just inflate it when you need it.

How to show textview left alignment in android

In my application i want to show VIEW ALL to left align like below image:-
But I found this type of layout and more thing i also do all these layout programmatically.
My SourceCode:-
private void printFrontCategory(){
for(int i=0;i<main.size();i++) {
View v = new View(MainActivity.this);
v.setLayoutParams(new RadioGroup.LayoutParams(RadioGroup.LayoutParams.FILL_PARENT, 5));
v.setBackgroundColor(Color.rgb(51, 51, 51));
/* View v1 = new View(MainActivity.this);
v1.setLayoutParams(new RadioGroup.LayoutParams(RadioGroup.LayoutParams.FILL_PARENT,5));
v1.setBackgroundColor(Color.rgb(255, 255, 255));*/
HorizontalScrollView horizontalScrollView = new HorizontalScrollView(MainActivity.this);
horizontalScrollView.setHorizontalScrollBarEnabled(false);
TextView textView = new TextView(MainActivity.this);
String content = front_category_catetory_name.get(i);
content = content.replace("'", "");
content = content.replace("&","");
textView.setText(content);
textView.setGravity(Gravity.RIGHT);
// textView.setGravity(Gravity.CENTER);
textView.setTextSize(20);
TextView textView2 = new TextView(MainActivity.this);
textView2.setText("VIEW ALL");
textView2.setTextColor(Color.BLUE);
textView2.setGravity(Gravity.LEFT);
LinearLayout linearLayout2 = new LinearLayout(MainActivity.this);
linearLayout2.setOrientation(LinearLayout.HORIZONTAL);
linearLayout2.addView(textView,0);
linearLayout2.addView(textView2,1);
LinearLayout linearLayout = new LinearLayout(MainActivity.this);
linearLayout.setOrientation(LinearLayout.HORIZONTAL);
for (int j = 0; j < main.get(i).size(); j++) {
LinearLayout linearLayout1 = new LinearLayout(MainActivity.this);
linearLayout1.setOrientation(LinearLayout.VERTICAL);
ImageView image = new ImageView(MainActivity.this);
TextView nameProduct = new TextView(MainActivity.this);
TextView priceProduct = new TextView(MainActivity.this);
TextView special_discount = new TextView(MainActivity.this);
/* Log.d("counter val",cnt+"");
Log.d("thumb ",front_category_thumb.size()+"");
Log.d("image", front_category_thumb.get(52));*/
new SetImageView(image).execute(main.get(i).get(j).get(1));
nameProduct.setText(main.get(i).get(j).get(2));
if (!String.valueOf(main.get(i).get(j).get(5)).equals(null)) {
priceProduct.setText(main.get(i).get(j).get(3));
special_discount.setText(main.get(i).get(j).get(5));
priceProduct.setPaintFlags(nameProduct.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
priceProduct.setGravity(Gravity.CENTER);
special_discount.setGravity(Gravity.CENTER);
nameProduct.setGravity(Gravity.CENTER);
linearLayout1.addView(image);
linearLayout1.addView(nameProduct);
linearLayout1.addView(priceProduct);
linearLayout1.addView(special_discount);
} else if (!String.valueOf(main.get(i).get(j).get(4)).equals(null)) {
priceProduct.setText(main.get(i).get(j).get(3));
special_discount.setText(main.get(i).get(j).get(4));
priceProduct.setPaintFlags(nameProduct.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
priceProduct.setGravity(Gravity.CENTER);
special_discount.setGravity(Gravity.CENTER);
nameProduct.setGravity(Gravity.CENTER);
linearLayout1.addView(image);
linearLayout1.addView(nameProduct);
linearLayout1.addView(priceProduct);
linearLayout1.addView(special_discount);
} else {
priceProduct.setText(main.get(i).get(j).get(3));
priceProduct.setGravity(Gravity.CENTER);
nameProduct.setGravity(Gravity.CENTER);
linearLayout1.addView(image);
linearLayout1.addView(nameProduct);
linearLayout1.addView(priceProduct);
}
linearLayout.addView(linearLayout1, j);
}
horizontalScrollView.addView(linearLayout);
// linearLayoutmens.addView(textView);
// linearLayoutmens.addView(v1);
linearLayoutmens.addView(linearLayout2);
linearLayoutmens.addView(horizontalScrollView);
linearLayoutmens.addView(v);
}
}
I am new in android programming. Please help me!

If you haven't found solution yet, then you can try the following
textView.setGravity(Gravity.RIGHT); This basically act as Gravity for text within TextView for more info refer So basically it is counter part of android:Gravity. Hence we need LayoutParam
Your problem it can be solved in two ways using LinearLayout and RelativeLayout change the below code from
TextView textView = new TextView(MainActivity.this);
String content = front_category_catetory_name.get(i);
content = content.replace("'", "");
content = content.replace("&","");
textView.setText(content);
textView.setGravity(Gravity.RIGHT);
// textView.setGravity(Gravity.CENTER);
textView.setTextSize(20);
TextView textView2 = new TextView(MainActivity.this);
textView2.setText("VIEW ALL");
textView2.setTextColor(Color.BLUE);
textView2.setGravity(Gravity.LEFT);
LinearLayout linearLayout2 = new LinearLayout(MainActivity.this);
linearLayout2.setOrientation(LinearLayout.HORIZONTAL);
linearLayout2.addView(textView,0);
linearLayout2.addView(textView2,1);
Solution1 Using LinearLayout
TextView textView = new TextView(MainActivity.this);
String content = front_category_catetory_name.get(i);
content = content.replace("'", "");
content = content.replace("&","");
textView.setText(content);
textView.setGravity(Gravity.START); //Gravity.Left also works
textView.setTextSize(20);
TextView textView2 = new TextView(MainActivity.this);
textView2.setText("VIEW ALL");
textView2.setTextColor(Color.BLUE);
textView2.setGravity(Gravity.END); //Gravity.Right also works
LinearLayout linearLayout2 = new LinearLayout(MainActivity.this);
linearLayout2.setOrientation(LinearLayout.HORIZONTAL);
LinearLayout.LayoutParams linearLayoutParam = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT,2);
linearLayout2.setLayoutParams(linearLayoutParam);
LinearLayout.LayoutParams viewParam = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT,1);
linearLayout2.addView(textView, 0, viewParam);
linearLayout2.addView(textView2, 1, viewParam);
In above solution I have assigned weightSum = 2 to LinearLayout and weight=1 to each TextView.
Solution2 Using RelativeLayout
TextView textView = new TextView(MainActivity.this);
String content = front_category_catetory_name.get(i);
content = content.replace("'", "");
content = content.replace("&","");
textView.setText(content);
//textView.setGravity(Gravity.START); //Gravity.Left also works
textView.setTextSize(20);
TextView textView2 = new TextView(MainActivity.this);
textView2.setText("VIEW ALL");
textView2.setTextColor(Color.BLUE);
//textView2.setGravity(Gravity.END); //Gravity.Right also works
RelativeLayout relativeLayout2 = new RelativeLayout(MainActivity.this);
RelativeLayout.LayoutParams relativeLayoutParam1 = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
relativeLayoutParam1.addRule(RelativeLayout.ALIGN_PARENT_LEFT);
relativeLayout2.addView(textView, 0, relativeLayoutParam1);
RelativeLayout.LayoutParams relativeLayoutParam2 = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
relativeLayoutParam2.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
relativeLayout2.addView(textView2, 1, relativeLayoutParam2);
In this case textView.setGravity(Gravity.RIGHT); is optional.
Update Based on comment
If you want underlined text as in SAMPLE below then check one of the answer here
<u>Sample</u>
But if you want a black line then it is view and you need to add it after adding linearlayout2 or relativelayout2 depending upon the solution in the main view.

Dynamically create textview in center

I have a list of items and a relative layout. I want to add as many relative layouts as the no of items in list and textview in each on them.
My problem is, I am not able to position the textview in the centre of the layout.
Below in my code
for(int i = 0; i < Names.size(); i++)
{
textView = new TextView(this);
textView.setText(Names.get(i));
rt=new RelativeLayout(this);
rt.setBackgroundResource(R.drawable.mednamedash);
int curTextViewId = prevTextViewId + 1;
int curRLId = prevRLId + 1;
textView.setId(curTextViewId);
rt.setId(curRLId);
final RelativeLayout.LayoutParams params =
new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.FILL_PARENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.BELOW, prevTextViewId);
rt.setLayoutParams(params);
//textView.setLayoutParams(params);
rt.addView(textView);
textView.setGravity(Gravity.CENTER);
prevTextViewId = curTextViewId;
prevRLId=curRLId;
noon.addView(rt, params);
}
Here rt is the dynamiclly created RelativeLayout and textView is the dynamically created TextView... noon is the RelativeLayout I am adding everything into.

Try this:
final RelativeLayout.LayoutParams tvParams =
new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
tvParams.addRule(RelativeLayout.CENTER_IN_PARENT);
rt.addView(textView, tvParams);

Try with textView.setGravity(Gravity.CENTER); before its addition to the rt (RelativeLayout)