android - How to know if there is available space in TextView? -


because make same, whatsapp, puts message , hour in same line

enter image description here

or in line.

sometimes there space , whatsapp puts hour in same line. there not space , whatsapp puts hour in other line.

inside or outside...

any idea?

public static final string tag = "mainactivity"; private textview mtext; private relativelayout relativelayout; private boolean mfirsttime = true; private static final int widh_hour = 382;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);       final int width = getscreenswidh();      mtext = (textview) findviewbyid(r.id.activity_main_text);     relativelayout = (relativelayout) findviewbyid(r.id.activity_main_relative);      mtext.settext("aaaaa dfsafsa afdsfa fdsafas adfas fdasf adfsa dsa aaaa dfsafsa afdsfa fdsafas adfas fdasf adfsa");      viewtreeobserver vto = mtext.getviewtreeobserver();     vto.addongloballayoutlistener(new viewtreeobserver.ongloballayoutlistener() {         @override         public void ongloballayout() {             if (mfirsttime) {                 layout layout = mtext.getlayout();                 int lines = layout.getlinecount();                  int offset = layout.layout.getlinewidth(lines - 1);                 int freespace = width - offset;                  textview hour = new textview(mainactivity.this);                 hour.settext("12:20");                 relativelayout.layoutparams params = new relativelayout.layoutparams(relativelayout.layoutparams.wrap_content, relativelayout.layoutparams.wrap_content);                 params.addrule(relativelayout.align_parent_right);                 if (freespace > widh_hour) {                     params.addrule(relativelayout.align_bottom, r.id.activity_main_text);                 } else {                     params.addrule(relativelayout.below, r.id.activity_main_text);                 }                 hour.setlayoutparams(params);                 relativelayout.addview(hour);                 log.d(tag, string.valueof(freespace));                 mfirsttime = false;             }          }     });   }  public int getscreenswidh() {     display display = getwindowmanager().getdefaultdisplay();     point size = new point();     display.getsize(size);     return size.x;  }

two public methods

return number of lines of text in layout.

gets unsigned horizontal extent of specified line, including leading margin indent , trailing whitespace.


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