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

Question

I'm new to java and android so I am asking these kind of questions here to understand how it should work.

I have 2 Activities in my app viz Welcome_Activity.java and Content_Activity.java

The First Activity work smoothly but the problem comes when the Content_Activity(Second Activity) is called from Welcome_Activity(First Activity)

In the onCreate of Second Activity, I think the contents which are too many cause the Activity to load too slow.

How to solve this 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 is just a method to get data from another class that have array Strings to fill the textviews and buttons 

    if (solved > 0) {
        ResumeGame(null);
    }
    else {
        LoadLevel(null);
    }
}

why is the content_activity slow? are you consuming a webservice or something? — Sarthak Mittal, Aug 18 '17 at 04:52
Can you please explain what kind of data you are trying to load in your Content_Activity which causes slow loading? — AbhayBohra, Aug 18 '17 at 04:52
Can you provide code of `onCreate` for slow activity? What all you are trying to do over there? — Anshuman Jaiswal, Aug 18 '17 at 04:53
Have you try to prepare require data in background thread instead of ui thread ? — Haresh Chhelana, Aug 18 '17 at 05:01
By the way, You should look into a library like Butterknife to reduce your need to write findViewById — OneCricketeer, Aug 18 '17 at 05:25
i edited my post added example to make my point clear please guy check it out — Fadi A., Aug 18 '17 at 05:57

score -1 · Answer 1 · answered Aug 18 '17 at 04:59

-1

You should have a look in Asyntask. It helps you to load/do the task that take sometime, by executing it in background thread. That would help your Activity(UI) won't be jerky.

answered Aug 18 '17 at 04:59

nđq

388
5
14

gotta do some research about this Asyntask , as i mentioned i'm a beginner ..so XD thanks a lot man – Fadi A. Aug 18 '17 at 05:58

score -1 · Accepted Answer · answered Aug 18 '17 at 06:26

-1

I assume you are fetching data in ResumeGame & LoadGame methods either from web services or from local app storage; if so try to do fetching thing in other than main thread (UI thread) and as soon as you get the data try to pass this data on UI thread. The best way to do it for you (beginner) use AsyncTask, usable callbacks in AsyncTask could be:

doInBackground: here write your code to get the data
onPostExecute: Here you can fill your UI views like button label, text of TextView

I hope this will help you in order to improve performance.

answered Aug 18 '17 at 06:26

Anshuman Jaiswal

5,352
1
29
46

it's just a class named "questions" with strings array for each level .. so i'm loading data from a class i just pick 10 elements from the array that inside that class – Fadi A. Aug 18 '17 at 06:33
If you are not using any data manipulation/fetch, I guess it's your layout that takes time to render. You should look into your layout files and optimize layouts by using less number of containers. – Anshuman Jaiswal Aug 18 '17 at 06:52
it could be, i guess i will try splash screen then , thanks a lot Anshuman – Fadi A. Aug 18 '17 at 06:57

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

2 Answers2