CODEWITHSUNDEEP
javaandroidactivity-lifecycle
Sarah Phil
Sarah Phil

Reputation: 263

ANDROID onBackPressed doesnt work for the activity

I implemented the onBackPressed for my activity where it will check the internet connection but when i click the back button in my tablet, it does nothing. I dont understand what is the cause of it. Can help?

Below is my code

if (!cd.isConnectingToInternet()) {
        AlertDialog.Builder splash = new AlertDialog.Builder(this);
        splash.setIcon(R.drawable.ic_fail)
                .setTitle("No Internet Connection")
                .setMessage(
                        "Please check your internet connection and try again.")
                .setCancelable(false)
                .setPositiveButton("Try again",
                        new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog,
                                    int id) {
                                Intent splash = new Intent(
                                        getApplicationContext(),
                                        SplashActivity.class);
                                startActivity(splash);
                                finish();
                            }
                        })
                .setNegativeButton("Wifi Setting",
                        new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog,
                                    int id) {
                                startActivity(new Intent(
                                        android.provider.Settings.ACTION_WIFI_SETTINGS));
                                dialog.cancel();
                            }
                        });
        AlertDialog alert = splash.create();
        alert.show();
    } else {
        Thread timer = new Thread() {
            public void run() {
                try {
                    sleep(5000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                } finally {
                    Intent login = new Intent(getApplicationContext(),
                            LoginActivity.class);
                    startActivity(login);
                    finish();
                }
            }
        };
        timer.start();
    }
}

public void onRestart() {
    super.onRestart();
    Intent splash = new Intent(getApplicationContext(),
            SplashActivity.class);
    startActivity(splash);
}

@Override
public void onBackPressed() {
    super.onBackPressed();
    finish();
}

Upvotes: 1

Views: 3904

Answers (5)

Deepzz
Deepzz

Reputation: 4571

just try this code... 

 @Override
        public void onBackPressed()
        {
            moveTaskToBack(true);
        }

Upvotes: 4

appukrb
appukrb

Reputation: 1507

Try This:

@Override
    public void onBackPressed() {
        yourclassname.this.finish();
        android.os.Process.killProcess(android.os.Process.myPid());
        System.exit(0);
        getParent().finish();
    }

Upvotes: 0

chipmunk
chipmunk

Reputation: 213

try this instead. I think it will Work for you.

@Override
public void onBackPressed() {
//super.onBackPressed();
// finish your Activity
ActivityName.this.finish();
return;
}

Upvotes: 0

Kumar Vivek Mitra
Kumar Vivek Mitra

Reputation: 33544

- finish() is the proper way to close the Activity.

- But still if its doesn't, due to some reason use System.exit(0) after finish().. this will surely work.... I know its crude...but works...

///////////////////////////// Edited Part///////////////////////////////////////

- override the method onKeyDown() of Activity.

@Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {

        if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) { 

               this.finish(); 

            } 
        return true;
    }

Upvotes: 0

kumar
kumar

Reputation: 691

comment, and check

//super.onBackPressed();

Upvotes: 0

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