Develop Reference

Nothing shows up while calling a method

I was developing an exam score calculator app.
When I want to call AD methods,advertisements don't show up.
Calculation process happens in OnCreate method:
public class resultActivity extends AppCompatActivity {
public String responseId;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_result);
/*Calculation...*/}
and other voids like:
public void requestAd() {
/*AD RQUESTING PROCESS...*/
}
and
public void showAd() {
/*AD SHOWING PROCESS...*/
}
AD team gave me this code to call the method and it works well:
requestButton.setOnClickListener(v -> requestAd());
showButton.setOnClickListener(v -> showAd());
But the Problem is I don't have buttons to call them so I tried this:
public class resultActivity extends AppCompatActivity {
public String responseId;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_result);
requestAd();
showAd();
/*Calculation...*/}
But when the activity starts ads don't show up!
The whole question is I want this methods to be called while this activity starts.
thank you.

Try building up the release version APK and test on it. Maybe your Ad-provider have some restrictions in debug version?

I made another class and moved request Ad and showAd there. Then, I made an object and called the method through object.
I have to mention that I changed a minor thing in requestAd but the main job was done by the object.
Thank You All.

Disable fullscreen mode after setting FLAG_LAYOUT_IN_SCREEN in Android

I have to inherit a custom main activity class which is a 3rd party lib and I cannot make any change to the class. This class adds FLAG_LAYOUT_IN_SCREEN to the window and it causes the app to be on full screen. However, I wanna prevent this behavior. So, the question is how can I clear/disable the full screen mode and can display navigation bar/status bar?
Here is the custom main activity class
public class CustomActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.getWindow().addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN);
setContentView(new FrameLayout(this));
// rest...
}
}
Here is my activity class:
public class MyActivity extends CustomActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// tried these attempts below, but none of them prevented
// the fullscreen mode which hides navigation bar and status bar.
this.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN);
this.getWindow().addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
this.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
}
}
Note: You can also test it on a sample app easily. You would notice once you add the FLAG_LAYOUT_IN_SCREEN, full-screen mode remains for different attempts as well.
public class MainActivity extends Activity {
private FrameLayout mainLayout;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.getWindow().addFlags(FLAG_LAYOUT_IN_SCREEN);
setContentView(new FrameLayout(this));
this.getWindow().clearFlags(FLAG_LAYOUT_IN_SCREEN);
this.getWindow().addFlags(FLAG_KEEP_SCREEN_ON);
}

Please apply the following to the app to not be as full screen (showing status bar)
getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

Hide/remove status bar from android source code (Android 6.0.1)

I'm new to this forum, and first of all, i apologize for my English,
I have a question about Android 6.0.1,
I'm customizing the operating system with the source codes for the IMX6 board.
It's possible to remove or hide the "status bar" (notification bar) on the top of the operating system by editing the build.prop file or others files?
Thank you in advance,

public class WelcomeActivity extends AppCompatActivity{
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_welcome);
}
}

write this code in activity's onCreate method
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
setContentView(R.layout.activity_splash);
}

Butterknife not detecting the source of event

I have just started working with Butterknife library and written the following code:
class myActivity extends AppCompatActivity
{
#BindView(R.id.button) Button app1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ButterKnife.bind(this);
}
public void selectApp(View b)
{
Button clicked=(Button)b;
if(clicked==app1)
Toast.makeText(this,"First App clicked",Toast.LENGTH_LONG).show();
}
}
here selectApp is attached through onClick in the xml view file.
But the problem is clicked==app1 is returning false even when pressing app1. The method is being called but the if condition is coming false.
Can anybody clarify.
Thanks

I think this would work:
if(clicked.getId()==R.id.button)
Also, you can use View b and not parse into a button:
if(b.getId()==R.id.button)
¿Is this your actual code? seems to lack an annotation on the method.

android - after accessibility says app name, make it say more words automatically

When an app first launches it says the app name when in talk back mode. Afterwards i'd like to to say "please wait" automatically without user pressing any button. How can this be achieved ?
here is my activity code:
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}