我正在为物联网设备开发应用程序。我的应用程序具有不同的活动,用于从不同的传感器获取数据。 每个活动都通过单击按钮接收数据。每当我按下按钮时,都会出现以下错误。
confirm2.setOnClicklistener(new View.OnClicklistener() {
@Override
public void onClick(View view) {
// Get your custom_toast.xml layout
LayoutInflater inflater = getLayoutInflater();
final View layout = inflater.inflate(R.layout.custom_toast,(ViewGroup) findViewById(R.id.custom_toast_layout_id));
//Initializing the text views
EditText editText = findViewById(R.id.link2);
final String link2 = editText.getText().toString();
EditText editText1 = findViewById(R.id.idvalue);
final String StringValue = editText1.getText().toString();
//Adding functionality to the text views
fire2 = new Firebase("https://iotsense.firebaseio.com/");
Firebase fireChild = fire2.child(link2+"/S1");
fireChild.setvalue("4");
// Read from the database
myRef = FirebaseDatabase.getInstance().getReference();
myRef.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull Datasnapshot datasnapshot) {
// This method is called once with the initial value and again
// whenever data at this location is updated.
if(StringValue.length()>0 && link2.length()>0) {
try {
status = datasnapshot.child(link2 + "/Analog").getvalue().toString();}
catch (NullPointerException ignored){}
if(status==null){
TextView text4 = layout.findViewById(R.id.text4);
text4.setText(" Error: Wrong ID. ");
// Toast...
Toast toast = new Toast(getapplicationContext());
toast.setGravity(Gravity.CENTER_VERTICAL,540);
toast.setDuration(Toast.LENGTH_LONG);
toast.setView(layout);
toast.show();
return;
}
else {
analogvalue = Integer.parseInt(status);
pin.setText(status);
final int value = Integer.parseInt(StringValue);
if (analogvalue > value) {
Firebase fireChild = fire2.child(link2 + "/Pin1");
fireChild.setvalue(spinner1.getSelectedItem().toString());
Firebase fireChild1 = fire2.child(link2 + "/Pin2");
fireChild1.setvalue(spinner2.getSelectedItem().toString());
}
if (analogvalue <= value) {
if(spinner1.getSelectedItem().toString().equals("HIGH")){Firebase fireChild = fire2.child(link2 + "/Pin1"); fireChild.setvalue("LOW");}
if(spinner1.getSelectedItem().toString().equals("LOW")) {Firebase fireChild = fire2.child(link2 + "/Pin1"); fireChild.setvalue("HIGH");}
if(spinner2.getSelectedItem().toString().equals("HIGH")){Firebase fireChild = fire2.child(link2 + "/Pin2"); fireChild.setvalue("LOW");}
if(spinner2.getSelectedItem().toString().equals("LOW")) {Firebase fireChild = fire2.child(link2 + "/Pin2"); fireChild.setvalue("HIGH");}
}
}
}
}
I/art: Background sticky concurrent mark sweep GC freed 132932(5MB) AllocSpace objects,21(744KB) LOS objects,13% free,35MB/40MB,paused 1.556ms total 109.059ms
I/art: Background sticky concurrent mark sweep GC freed 94569(3MB) AllocSpace objects,0(0B) LOS objects,5% free,38MB/40MB,paused 8.078ms total 68.990ms
I/art: Background sticky concurrent mark sweep GC freed 101736(3MB) AllocSpace objects,3% free,39MB/40MB,paused 5.349ms total 81.087ms
I/art: Background sticky concurrent mark sweep GC freed 48181(1662KB) AllocSpace objects,0% free,40MB/40MB,paused 5.361ms total 56.784ms