Unable to pass set text values dynamically to a text view in android

Question

I am using Layout inflator in my application to suit my requirements. I have text view, edittext and button in the layout. Here is my xml file

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/linearlayoutid"
android:layout_width="match_parent"
android:layout_height="match_parent"

android:orientation="vertical">

<LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal">

    <TextView
        android:id="@+id/textviewid"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"

        />

    <EditText
        android:id="@+id/edittextid"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />


</LinearLayout>


<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/linearlayoutid"
    android:layout_centerHorizontal="true"
    android:text="button" />

I want to generate 'n' number of text views and pass the values from database. I used layout inflator here and below is my code

setContentView(R.layout.activity_main);

LinearLayout lv = (LinearLayout) findViewById(R.id.linearlayoutid);
View v = null;


for (int i = 0; i < 41; i++) {

    v = LayoutInflater.from(this).inflate(R.layout.activity_main, null);
    lv.addView(v);
}

//  EditText editText = (EditText) v.findViewById(R.id.edittextid);
final TextView[] myTextViews = new TextView[41];
for (int i = 0; i < 41; i++) {

    TextView tv = (TextView) v.findViewById(R.id.textviewid);
    d = mydb.getValues();

    myTextViews[i] = tv;
    tv.setText(d.get(i));
    Log.d(tag,"run"+d.get(i));

}

Its is generating 'n' number of text views dynamically but the problem is I am not able to display text using 'setText' . Its blank completely . Can anyone please tell me where I am making mistake? I want to pass the dynamic value and not the hard coded one. Any help would be great !! Thanks

TextView tv = (TextView) v.findViewById(R.id.textviewid); is repeatedly called 41 times, without any change! so the TextView Array actually has the same textview! — David, May 04 '16 at 13:43
to me, this makes less sense no matter wherever it is. You seem to be misusing loops. — David, May 04 '16 at 13:45
Remove textviewid from your xml and use lv.addView(myTextViews[i]) after the setText. [Read here](http://stackoverflow.com/a/7445160/1222099) — michoprogrammer, May 04 '16 at 13:46
lv.addView(v); above this line find textview id and and set your value there and comment below for loop — Pavya, May 04 '16 at 13:47
I am not getting what you are saying. Could you please post as answer @Pravin — Anusha, May 04 '16 at 13:48
I am passing dynamic values via "for loop" I cant pass it before that @Pravin — Anusha, May 04 '16 at 13:53
I tested it by passing hard coded values . And yes, the hard coded values are displaying @NaveenShriyan — Anusha, May 04 '16 at 13:57
u r telling if u use this code "tv.setText(d.get(i));" it doesnt work?, and if u use "tv.setText("naveen");" it will work right? — Naveen Shriyan, May 04 '16 at 14:00
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/111012/discussion-between-naveen-shriyan-and-anusha). — Naveen Shriyan, May 04 '16 at 14:06

score 0 · Answer 1 · answered May 04 '16 at 13:49

0

If you want show list of some data, will be better to use List view. Or you can use RecyclerView. You can find more information about this layouts and how use it on Internet.

answered May 04 '16 at 13:49

Alexander

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Unable to pass set text values dynamically to a text view in android

1 Answers1