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I want to save the values that are on the counter for when I change from Fragment and go back to that, the values that I counted are there. I tried to use Savedinstance so that it did not work,not saved, I would like a help in my code.
public class Home extends Fragment {
private Button add, dim;
private TextView opt3010;
private TextView opt3020;
private TextView opt360;
private TextView opt380;
private TextView opt390;
private TextView opt780;
private TextView vst3268;
private TextView vst3250;
private TextView mon;
private TextView vay;
private int cont1, cont2, cont3, cont4, cont5, cont6, cont7, cont8, cont9, cont10 = 0;
private int totalMaq = 0;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_home, container, false);
opt3010 = (TextView) v.findViewById(R.id.opt3010);
opt3020 = (TextView) v.findViewById(R.id.opt3020);
opt360 = (TextView) v.findViewById(R.id.opt360);
opt380 = (TextView) v.findViewById(R.id.opt380);
opt390 = (TextView) v.findViewById(R.id.opt390);
opt780 = (TextView) v.findViewById(R.id.opt780);
vst3250 = (TextView) v.findViewById(R.id.vst3250);
vst3268 = (TextView) v.findViewById(R.id.vst3268);
mon = (TextView) v.findViewById(R.id.mon);
vay = (TextView) v.findViewById(R.id.vay);
add = (Button) v.findViewById(R.id.button);
add = (Button) v.findViewById(R.id.button);
add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
cont1++;
opt3010.setText("" + cont1);
totalMaq++;
}
});
add = (Button) v.findViewById(R.id.button2);
add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
cont2++;
opt3020.setText("" + cont2);
totalMaq++;
}
});
add = (Button) v.findViewById(R.id.button6);
add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
cont3++;
opt360.setText("" + cont3);
totalMaq++;
}
});
add = (Button) v.findViewById(R.id.button12);
add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
cont4++;
opt380.setText("" + cont4);
totalMaq++;
}
});
add = (Button) v.findViewById(R.id.button10);
add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
cont5++;
opt390.setText("" + cont5);
totalMaq++;
}
});
add = (Button) v.findViewById(R.id.button11);
add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v){
cont6++;
opt780.setText("" + cont6);
totalMaq++;
}
});
add = (Button) v.findViewById(R.id.button13);
add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
cont8++;
vst3268.setText("" + cont8);
totalMaq++;
}
});
add = (Button) v.findViewById(R.id.button14);
add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
cont9++;
vst3250.setText("" + cont9);
totalMaq++;
}
});
add = (Button) v.findViewById(R.id.button8);
add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
cont10++;
mon.setText("" + cont10);
}
});
add = (Button) v.findViewById(R.id.button15);
add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
cont7++;
vay.setText("" + cont7);
}
});
dim = (Button) v.findViewById(R.id.button5);
dim.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(cont1<=0){
}else {
cont1--;
opt3010.setText("" + cont1);
totalMaq--;
}
}
});
dim = (Button) v.findViewById(R.id.button4);
dim.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(cont2<=0){
}else {
cont2--;
opt3020.setText("" + cont2);
totalMaq--;
}
}
});
dim = (Button) v.findViewById(R.id.button7);
dim.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(cont3<=0){
}else {
cont3--;
opt360.setText("" + cont3);
totalMaq--;
}
}
});
dim = (Button) v.findViewById(R.id.button16);
dim.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(cont4<=0){
}else {
cont4--;
opt380.setText("" + cont4);
totalMaq--;
}
}
});
dim = (Button) v.findViewById(R.id.button9);
dim.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(cont5<=0){
}else {
cont5--;
opt390.setText("" + cont5);
totalMaq--;
}
}
});
dim = (Button) v.findViewById(R.id.button17);
dim.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v){
if(cont6<=0){
}else {
cont6--;
opt780.setText("" + cont6);
totalMaq--;
}
}
});
add = (Button) v.findViewById(R.id.button19);
add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(cont8<=0){
}else{
cont8--;
vst3268.setText("" + cont8);
totalMaq--;
}
}
});
add = (Button) v.findViewById(R.id.button18);
add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(cont9<=0){
}else{
cont9--;
vst3250.setText("" + cont9);
totalMaq--;
}
}
});
add = (Button) v.findViewById(R.id.button20);
add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(cont10<=0){
}else{
cont10--;
mon.setText("" + cont10);
}
}
});
add = (Button) v.findViewById(R.id.button21);
add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(cont7<=0){
}else{
cont7--;
vay.setText("" + cont7);
}
}
});
if (savedInstanceState!= null){
cont1 = savedInstanceState.getInt("conta");
opt3010.setText(String.valueOf(cont1));
}
return v;}
@Override
public void onSaveInstanceState(@NonNull Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt("conta", cont1);
}
}
In the case of this Savedinstance that I put, when rotating the screen it saves, but when changing fragment and returning in that, it does not save.
– Diego Souza
You have several options, you can use Sharedpreference or use a callback from Activity, depends more on what you want to save and how you need to recover this data, if you will save as user instance, better use Sharedpreference, if it is only saved in the session that the user accesses the system to use the Activity callback
– Weslley Barbosa