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Pass the activity from Application class


Pass the activity from Application class

By : Nagaraju Kilari
Date : November 17 2020, 11:52 AM
it helps some times You can put your main activity as a parameter to connection constructor:
code :
public class Trackers extends Application
{
       private static Connection connection;

       public Connection getConnectionInstance(MainActivity main) {
           if (connection == null){
               connection = new Connection(main);
           }
           return connection;
       }
}


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how to pass data from one activity to another activity with th use of Application class

how to pass data from one activity to another activity with th use of Application class


By : Rainier
Date : March 29 2020, 07:55 AM
How to pass a string from an activity to a non activity class in the same activity in android

How to pass a string from an activity to a non activity class in the same activity in android


By : Rowan
Date : March 29 2020, 07:55 AM
With these it helps In my project i got a string from one activity to other ListActivity.now i want to get this string to my adapter class.how can i do this.. below is my code, in this i want to get the fromMobileno string to my adapter class ,
i want to get this string to my adapter class.how can i do this
code :
 String strfromMobileno="";
 public adapter(Context context, int layout, Cursor c,
                    String[] from, int[] to,String fromMobileno) {
     super(context, layout, c, from, to);
     ///... your code here 
     strfromMobileno=fromMobileno;
  }
Pass callback method result with in a non-activity class to android activity class?

Pass callback method result with in a non-activity class to android activity class?


By : Yehuda
Date : March 29 2020, 07:55 AM
With these it helps you can set listener for success or failure in your TwitterAuth.class and then set this listener in your activity (CheckLib.class) to notify you when success or failure, like this:
code :
public class TwitterAuth {
private TwitterLoginListener listener;
public void setListener( TwitterLoginListener listener){
     this.listener = listener;    
}

Interfase TwitterLoginListener{
    public void success(Result<TwitterSession> twitterSessionResult);
    public void failure(TwitterException e);
} 
.
. 
.
if(listener != null){
    listener.success(twitterSessionResult);
}  
if(listener != null){
    listener.failure(e);
} 
.
.
.

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
auth = new TwitterAuth(CheckLib.this, CONSUMER_KEY, CONSUMER_SECRET);
auth.setListener(new TwitterLoginListener{

     @Override
     public void success(Result<TwitterSession> twitterSessionResult){
        //login success
     }

     @Override
     public void failure(TwitterException e){
        //login failed
     }
}); 
.
.
.
Getting application context in a non-activity class to pass a CSV file

Getting application context in a non-activity class to pass a CSV file


By : JORCHINE.NET.LINE
Date : March 29 2020, 07:55 AM
I hope this helps you . I'm trying to figure out how to read a CSV file stored in the assets folder. What I tried doing is using an InputFileStream as I couldn't get the a FileReader to find the files. So I put the files into the assets folder and used an InputFileStream. , You need to give the Context of Activities
code :
loadCategory(0); - > loadCategory(0, this);
   public void loadCategory(int categoryIndex, Context context) {
    ...
   ToolsCategory cat = ToolsSource.getInstance(context).getCategory(categoryIndex);
public static ToolsSource getInstance(Context context) {
    if (instance == null) {
        try {
            instance = new ToolsSource(context);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return instance;
}
public ToolsSource(Context context) throws IOException {
    int i;
    mCategory = new ToolsCategory[CATEGORIES.length];
    for (i = 0; i < CATEGORIES.length; i++) {
        mCategory[i] = new ToolsCategory(CATEGORIES[i], context);
    }
}
public ToolsCategory(String name, Context context) throws IOException {
    this.context = context;
    AssetManager assetManager = context.getAssets();
    categoryName = name;
    mTools = new Tool[TOOLS_PER_CATEGORY];
    assignValues(categoryName, assetManager);
}
Android - How to pass another activity application context from java class extends fragments to asynctask?

Android - How to pass another activity application context from java class extends fragments to asynctask?


By : Jimmi J.
Date : March 29 2020, 07:55 AM
this one helps. Hi I am trying to make application that has view pager and tablayout. So when I choose 'friends' tab layout it will call java class named FragFriends.java, , Change this:
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