Question

I am developing an Android app. There is an Activity which showing Button.
When a button is pressed ProgressDialog should appear and behind ProgressDialog there should be another Activity that should open.
I want activity other then this Activity in which button is. How can I achieve this?

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.gamemenu);


    TextView tvStart = (TextView)findViewById(R.id.start);
    //TextView tvSettings = (TextView)findViewById(R.id.settings);
    TextView tvAbout = (TextView)findViewById(R.id.instruction);
    TextView tvExit = (TextView)findViewById(R.id.exit);

    tvStart.setOnClickListener(this);
    //tvSettings.setOnClickListener(this);
    tvAbout.setOnClickListener(this);
    tvExit.setOnClickListener(this);

}

public void onClick(View v) {

    switch(v.getId()){

    case R.id.start:

        ProgressDialog pd=new ProgressDialog(StartMenu.this);  
        pd=ProgressDialog.show(StartMenu.this,"Loading","Please Wait",false);  
        Handler handler=new Handler();
           Runnable gotologin=new Runnable() 
           {
           public void run() 
           {
            startActivity(new Intent(StartMenu.this,AndroidGame.class));
            finish();
           }
           };
           handler.postDelayed(gotologin, 3000);       
           pd.dismiss();    
        //   finish();     
          break;
     // Intent iStart = new Intent(getApplicationContext(), AndroidGame.class );
    //  startActivity(iStart);
    //  break;

    /*case R.id.settings:
        Intent iSettings = new Intent(getApplicationContext(), GameSettings.class );
        startActivity(iSettings);
        break;*/

    case R.id.instruction:
        Intent inInstructions = new Intent(getApplicationContext(), Instructions.class );
        startActivity(inInstructions);
        break;

    case R.id.exit:
        ((Activity)v.getContext()).finish();
        //this.finish();

        break;
    }

}

Answer 1

You can show the ProgressDialog in this way.But,I don’t think this progressDialog would been seen as the new Activity would be loaded on the screen before you can show the ProgressDialog.

ProgressDialog pd=new ProgressDialog(ActivityName.this);  
Button n=new Button(ActivityName.this);  
n.setOnClickListener(new OnClickListener() {  
@Override  
public void onClick(View v) {  

       pd=ProgressDialog.show(ActivityName.this,"Loading","Please Wait",false);  
       Intent i=new Intent(ActivityName.this,TargetActivityName.class)  
       startActivity(i);  
       pd.dismiss();    
       finish();     
   }  
});

If you want to show a ProgressDialog on click for Some time for your requirement,you can achieve that using Handler‘s that would load the the new Activity after some predecided time.

A sample example which would hold the ProgressDialog for 3 Sec is as followed:

ProgressDialog pd=new ProgressDialog(ActivityName.this);  
Button n=new Button(ActivityName.this);  
n.setOnClickListener(new OnClickListener() {  
@Override  
public void onClick(View v) {  

   pd=ProgressDialog.show(ActivityName.this,"Loading","Please Wait",false);  

   Handler handler=new Handler();
   Runnable gotologin=new Runnable() 
   {
   public void run() 
   {
    startActivity(new Intent(ActivityName.this, TargetActivityName.class));
    finish();
   }
   };
   handler.postDelayed(gotologin, 3000);       
   pd.dismiss();    
   finish();     
  }  
});

Required Answer:

ProgressDialog pd;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.gamemenu);


    pd=new ProgressDialog(StartMenu.this);   // Edited here


    TextView tvStart = (TextView)findViewById(R.id.start);
    //TextView tvSettings = (TextView)findViewById(R.id.settings);
    TextView tvAbout = (TextView)findViewById(R.id.instruction);
    TextView tvExit = (TextView)findViewById(R.id.exit);

    tvStart.setOnClickListener(this);
    //tvSettings.setOnClickListener(this);
    tvAbout.setOnClickListener(this);
    tvExit.setOnClickListener(this);

}

public void onClick(View v) {

    switch(v.getId()){

    case R.id.start:

         runOnUiThread(new Runnable() {

         @Override
           public void run() {
              pd=ProgressDialog.show(StartMenu.this,"Loading","Please Wait",false);  
              Handler handler=new Handler();
               Runnable gotologin=new Runnable() 
               {
                public void run() 
                {
                  startActivity(new Intent(StartMenu.this,AndroidGame.class));
                  finish();
                }
               };
              handler.postDelayed(gotologin, 3000);       
              pd.dismiss();    
              finish();  

            }
      });
      //     break;
     // Intent iStart = new Intent(getApplicationContext(), AndroidGame.class );
    //  startActivity(iStart);
    //  break;

    /*case R.id.settings:
        Intent iSettings = new Intent(getApplicationContext(), GameSettings.class );
        startActivity(iSettings);
        break;*/

    case R.id.instruction:
        Intent inInstructions = new Intent(getApplicationContext(), Instructions.class );
        startActivity(inInstructions);
        break;

    case R.id.exit:
        ((Activity)v.getContext()).finish();
        //this.finish();

        break;
    }

}