C. Leung questions

C. Leung answers

• Cannot change the visiblity of an ImageView
• onClick listener to a ListView Image - Android
• programmatically set margin/ padding of textview in a listview
• Assigning text color to text in EditText
• Cannot read property 'getContext' of null, using canvas
• set height of imageview as matchparent programmatically
• popup menu expand/collapse from an icon in Action Bar