android - LayoutParams returning null -

-

this code, dont know why returning null? can put null check here, there wrong?

    textview descriptiontv = (textview) findviewbyid(r.id.descriptiontv);     textview tc = new textview(c);     final popupwindow windowpopup = new popupwindow(tc,layoutparams.match_parent,layoutparams.wrap_content ,false);      tc.setbackgroundresource(r.drawable.bg_training_baloon_hc_2x);     tc.settext("this demo test check how looks, m wanting test whether works or not");     tc.setpadding(20, 20, 20, 20);     linearlayout.layoutparams params = new android.widget.linearlayout.layoutparams(layoutparams.wrap_content,layoutparams.wrap_content);     params.setmargins(30, 0, 30, 0);     tc.setlayoutparams(params);

based on experience, have add view parent view first before can set layout parameters it, so:

textview calendaryear = new textview(getactivity()); calendaryear.settext(calendar.getyear() + ""); calendaryear.settextsize(20); calendaryear.settypeface(null, typeface.bold); calendaryear.setgravity(gravity.center); calendaryear.settextcolor(resources.getcolor(android.r.color.black)); calendaritemslinearlayout.addview(calendaryear);  // have add textview layout first before // can set layout margins viewgroup.layoutparams layoutparams = calendaryear.getlayoutparams(); ((linearlayout.layoutparams)layoutparams).setmargins(0, (int)(16 * density), 0, 0); calendaryear.setlayoutparams(layoutparams);

Comments

Post a Comment

Popular posts from this blog

c++ - Creating new partition disk winapi -

-
i'am trying create new partition , mount volume new, thought createfile let me this, code : lpctstr lpfilename=l"\\\\.\\device\\harddisk0\\partition3"; handle handl=createfile( lpfilename, generic_read | generic_write, file_share_read | file_share_write, null, create_always, file_attribute_normal, null ); if (handl==invalid_handle_value) { qdebug()<<"handl invalid"<<" error"<<getlasterror();} bool success = definedosdevice(ddd_raw_target_path,l"i:",l"\\device\\harddisk0\\partition3"); if(!success) qdebug()<<" definedosdevice failed "<<getlasterror(); bflag = getvolumenameforvolumemountpoint( l"i:\\", // input volume mount point or directory /** u in dir
Read more

Android Prevent Bluetooth Pairing Dialog -

-
i'm developing internal application uses bluetooth printing. want bluetooth pairing occur without user input. have managed working trapping android.bluetooth.device.action.pairing_request broadcast. in broadcast receiver call setpin method, , pairing works ok, bluetoothpairingdialog displayed second or two, disappears - see link below. https://github.com/android/platform_packages_apps_settings/blob/master/src/com/android/settings/bluetooth/bluetoothpairingdialog.java since broadcast non-ordered, can't call abortbroadcast() , , wondering if there other way prevent pairing dialog appearing. can hook window manager in way? i haven't been able come way without modifying sdk. if you're oem, it's easy (i'm on 4.3): in packages/apps/settings/androidmanifest.xml, comment intent filter pairing dialog: <activity android:name=".bluetooth.bluetoothpairingdialog" android:label="@string/bluetooth_pairing_request"
Read more

php - joomla get content in onBeforeCompileHead function -

-
i'm developing joomla system plugin. need add javascript , css files if [myshortcode] shortcode found in content. how can content in onbeforecompilehead function function onbeforecompilehead() { $document = jfactory::getdocument(); //add scripts if shortcode found ... $document->addstylesheet($cssfile, 'text/css', null, array()); the $content = jresponse::getbody(); not work. thanks try this, for style sheet, $document = jfactory::getdocument(); $document->addstylesheet('http://domain.com/templates/css/style.css'); for javascript file $document = jfactory::getdocument(); $document->addscript('full url'); also can this, $document = jfactory::getdocument(); // add javascript $document->addscriptdeclaration(' window.event("domready", function() { alert("an inline javascript declaration"); }); '); // add styles $style = 'body {'
Read more