So, I'm a beginner this is my first app and I'm having trouble saving the state of the toggle switches. When I exit the app it clears the state of the toggle and makes it look like if has not been toggled. I have looked all over for the solution but when I try to implement how its suggested I get errors and crashes. All of the examples I have seen look simple in comparison to my code so I cannot figure out how to do it.
Checked out these threads previously:
Save SWITCH button state, and recover state with SharedPrefs
Sharedpreferences with switch button
How to save the state of the toogleButton on/off selection?
how to save the state of switch(button) in android
If anyone could point me to a solution I would be really happy. Here's a snippet of the relevant code:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
switchButton_Stat = (Switch) findViewById(switch_s);
textView_S = (TextView) findViewById(R.id.textView_S);
textView_S.setText(switchOff);
switchButton_Stat.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean bChecked) {
if (bChecked) {
textView_S.setText(switchOn);
CompoundButton toggle_d = (CompoundButton)findViewById(R.id.switch_d);
if (toggle_d.isChecked()){
NotificationManager NM = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
NM.cancelAll();
handler_mon.removeCallbacks(runnable_mon);
handler_sun.postDelayed(runnable_sun,300);
}
else {
NotificationManager NM = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
NM.cancelAll();
handler_sun.removeCallbacks(runnable_sun);
handler_mon.postDelayed(runnable_mon,300);
}
}
else {
NotificationManager NM = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
NM.cancelAll();
handler_mon.removeCallbacks(runnable_mon);
handler_sun.removeCallbacks(runnable_sun);
textView_S.setText(switchOff);
}
}
});
switchButton_Day = (Switch) findViewById(R.id.switch_d);
textView_D = (TextView) findViewById(R.id.textView_D);
textView_D.setText(MonOff);
switchButton_Day.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean dChecked) {
if (dChecked) {
textView_D.setText(SunOff);
Switch switch_s = (Switch) findViewById(R.id.switch_s);
if (switch_s.isChecked()){
NotificationManager NM = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
NM.cancelAll();
handler_mon.removeCallbacks(runnable_mon);
handler_sun.postDelayed(runnable_sun,300);
}
Log.i(TAG, "Day Switch");
} else {
textView_D.setText(MonOff);
Switch switch_s = (Switch) findViewById(R.id.switch_s);
if (switch_s.isChecked()){
NotificationManager NM = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
NM.cancelAll();
//NM.cancel(2);
handler_sun.removeCallbacks(runnable_sun);
handler_mon.postDelayed(runnable_mon,300);
}
}
}
});
}
Okay, so I think I figured out what I was doing wrong... In my earlier attempts I added the "SharedPreferences.Editor" pair to save the state of the toggle in the wrong if/else statement since I have the if/else statements nested within each other. Below is the implementation
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
switchButton_Stat = (Switch) findViewById(switch_s);
SharedPreferences tog_prefs = getSharedPreferences("TOG_PREF", MODE_PRIVATE);
boolean tglpref_1 = tog_prefs.getBoolean("tglpref_1", false);
if (tglpref_1) {
switchButton_Stat.setChecked(true);
} else {
switchButton_Stat.setChecked(false);
}
switchButton_Stat = (Switch) findViewById(switch_s);
textView_S = (TextView) findViewById(R.id.textView_S);
textView_S.setText(switchOff);
switchButton_Stat.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean bChecked) {
if (bChecked) {
SharedPreferences.Editor editor = getSharedPreferences("TOG_PREF", MODE_PRIVATE).edit();
editor.putBoolean("tglpref_1", true); // value to store
editor.commit();
textView_S.setText(switchOn);
CompoundButton toggle_d = (CompoundButton)findViewById(R.id.switch_d);
if (toggle_d.isChecked()){
NotificationManager NM = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
NM.cancelAll();
handler_mon.removeCallbacks(runnable_mon);
handler_sun.postDelayed(runnable_sun,300);
}
else {
NotificationManager NM = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
NM.cancelAll();
handler_sun.removeCallbacks(runnable_sun);
handler_mon.postDelayed(runnable_mon,300);
}
}
else {
SharedPreferences.Editor editor = getSharedPreferences("TOG_PREF", MODE_PRIVATE).edit();
editor.putBoolean("tglpref_1", false); // value to store
editor.commit();
NotificationManager NM = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
NM.cancelAll();
handler_mon.removeCallbacks(runnable_mon);
handler_sun.removeCallbacks(runnable_sun);
textView_S.setText(switchOff);
}
}
});