java - Android : How to load an activity faster when calling it from another activity, even while loading several contents in the second activity -


i'm new java , android asking these kind of questions here understand how should work.

i have 2 activities in app viz welcome_activity.java , content_activity.java

the first activity work smoothly problem comes when content_activity(second activity) called welcome_activity(first activity)

in oncreate of second activity, think contents many cause activity load slow.

how solve issue?

example : 

@override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);      setcontentview(r.layout.activity_puzzle_game);      q1_tv = (textview) findviewbyid(r.id.q1_tv);     q2_tv = (textview) findviewbyid(r.id.q2_tv);     q3_tv = (textview) findviewbyid(r.id.q3_tv);     q4_tv = (textview) findviewbyid(r.id.q4_tv);     q5_tv = (textview) findviewbyid(r.id.q5_tv);     q6_tv = (textview) findviewbyid(r.id.q6_tv);     q7_tv = (textview) findviewbyid(r.id.q7_tv);     q8_tv = (textview) findviewbyid(r.id.q8_tv);     q9_tv = (textview) findviewbyid(r.id.q9_tv);     q10_tv = (textview) findviewbyid(r.id.q10_tv);      bt1 = (button) findviewbyid(r.id.bt1);     bt2 = (button) findviewbyid(r.id.bt2);     bt3 = (button) findviewbyid(r.id.bt3);     bt4 = (button) findviewbyid(r.id.bt4);     bt5 = (button) findviewbyid(r.id.bt5);     bt6 = (button) findviewbyid(r.id.bt6);     bt7 = (button) findviewbyid(r.id.bt7);     bt8 = (button) findviewbyid(r.id.bt8);     bt9 = (button) findviewbyid(r.id.bt9);     bt10 = (button) findviewbyid(r.id.bt10);      sp = getsharedpreferences("saved_data", mode_private);     solved = sp.getint("solved", 0);      // loadlevel & resumegame method data class have array strings fill textviews , buttons       if (solved > 0) {         resumegame(null);     }     else {         loadlevel(null);     } }

i assume fetching data in resumegame & loadgame methods either web services or local app storage; if try fetching thing in other main thread (ui thread) , data try pass data on ui thread. best way (beginner) use asynctask, usable callbacks in asynctask be:

  • doinbackground: here write code data
  • onpostexecute: here can fill ui views button label, text of textview

i hope in order improve performance.


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