Create a new TextView programmatically then display it below another TextView

Question

String   textArray   one   two   asdasasdf asdf dsdaa    int length textArray length  RelativeLayout layout   new RelativeLayout this   RelativeLayout LayoutParams relativeParams   new RelativeLayout LayoutParams          LayoutParams WRAP CONTENT  LayoutParams WRAP CONTENT   for int i 0 i lt length i         TextView tv new TextView getApplicationContext         tv setText textArray i        relativeParams addRule RelativeLayout BELOW  tv getId         layout addView tv  relativeParams       I need to do something like that   so it would display as  one two asdfasdfsomething   on the screen

User · Answer

public View recentView   public void onCreate Bundle savedInstanceState            super onCreate savedInstanceState              Create a relative layout and add a button         relativeLayout   new RelativeLayout this           btn   new Button this           btn setId  int System currentTimeMillis             recentView   btn          btn setText  Click me            relativeLayout addView btn             setContentView relativeLayout            btn setOnClickListener new View OnClickListener                   Overr ide             public void onClick View view                       Create a textView  set a random ID and position it below the most recently added view                 textView   new TextView ActivityName this                   textView setId  int System currentTimeMillis                     layoutParams   new RelativeLayout LayoutParams LayoutParams WRAP CONTENT LayoutParams WRAP CONTENT                   layoutParams addRule RelativeLayout BELOW  recentView getId                     textView setText  Time    System currentTimeMillis                     relativeLayout addView textView  layoutParams                   recentView   textView                                    This can be modified to display each element of a String array in different TextViews

User · Answer

You re not assigning any id to the text view  but you re using tv getId   to pass it to the addRule method as a parameter  Try to set a unique id via tv setId int    You could also use the LinearLayout with vertical orientation  that might be easier actually  I prefer LinearLayout over RelativeLayouts if not necessary otherwise

User · Answer

Try this code   final String   str     one   two   three   asdfgf    final RelativeLayout rl    RelativeLayout  findViewById R id rl   final TextView   tv   new TextView 10    for  int i 0  i lt str length  i          tv i    new TextView this        RelativeLayout LayoutParams params new RelativeLayout LayoutParams            int LayoutParams WRAP CONTENT  int LayoutParams WRAP CONTENT       params leftMargin   50      params topMargin    i 50      tv i  setText str i        tv i  setTextSize  float  20       tv i  setPadding 20  50  20  50       tv i  setLayoutParams params       rl addView tv i

User · Answer

If it s not important to use a RelativeLayout  you could use a LinearLayout  and do this   LinearLayout linearLayout   new LinearLayout this   linearLayout setOrientation LinearLayout VERTICAL     Doing this allows you to avoid the addRule method you ve tried  You can simply use addView   to add new TextViews   Complete code   String   textArray     One    Two    Three    Four    LinearLayout linearLayout   new LinearLayout this   setContentView linearLayout   linearLayout setOrientation LinearLayout VERTICAL           for  int i   0  i  lt  textArray length  i           TextView textView   new TextView this       textView setText textArray i        linearLayout addView textView

[java] Create a new TextView programmatically then display it below another TextView

Examples related to java

Examples related to android

Examples related to textview

Examples related to android-relativelayout