我遇到了麻烦，我认为最大的问题是我的应用在打开对话框之前尝试连接到服务器。但是我可能有很多问题，但是我现在的主要问题是这个错误，
FATAL EXCEPTION: main
Process: com.gdptuning.gdptuning, PID: 10744
android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@d87dfd5 is not valid; is your activity running?
at android.view.ViewRootImpl.setView(ViewRootImpl.java:683)
at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:319)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:85)
at android.app.Dialog.show(Dialog.java:325)
at com.gdptuning.gdptuning.TuneActivity$4.onErrorResponse(TuneActivity.java:335)
at com.android.volley.Request.deliverError(Request.java:630)
at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(ExecutorDelivery.java:108)
at android.os.Handler.handleCallback(Handler.java:815)
at android.os.Handler.dispatchMessage(Handler.java:104)
at android.os.Looper.loop(Looper.java:207)
at android.app.ActivityThread.main(ActivityThread.java:5683)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:888)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:749)
这是我的代码：
public class TuneActivity extends AppCompatActivity implements
View.OnClickListener {
//ESP32 aREST server address
final String url = "http://192.168.7.1";
boolean isConnected = false;
boolean isProcessing = true;
String device = "GDP";
Button btn1, btn2, btn3, btn4, btn5, btn_num1, btn_num2, btn_num3, btn_num4, btn_num5, btn_home;
ImageView btn_info, wifi_switch;
int tuneMode = 0;
WifiManager wifi;
private RequestQueue queue;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_tune);
//set widget
btn1 = findViewById(R.id.btn1);
btn2 = findViewById(R.id.btn2);
btn3 = findViewById(R.id.btn3);
btn4 = findViewById(R.id.btn4);
btn5 = findViewById(R.id.btn5);
btn_num1 = findViewById(R.id.tgl_num1);
btn_num2 = findViewById(R.id.tgl_num2);
btn_num3 = findViewById(R.id.tgl_num3);
btn_num4 = findViewById(R.id.tgl_num4);
btn_num5 = findViewById(R.id.tgl_num5);
btn_home = findViewById(R.id.btn_home);
wifi_switch = findViewById(R.id.wifi_switch);
//Set On Click Listener
btn1.setOnClickListener(this);
btn2.setOnClickListener(this);
btn3.setOnClickListener(this);
btn4.setOnClickListener(this);
btn5.setOnClickListener(this);
btn_num1.setOnClickListener(this);
btn_num2.setOnClickListener(this);
btn_num3.setOnClickListener(this);
btn_num4.setOnClickListener(this);
btn_num5.setOnClickListener(this);
btn_home.setOnClickListener(this);
//Working with wifi
queue = VolleySingleton.getInstance(this).getRequestQueue();
wifi = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
wifi_switch = findViewById(R.id.wifi_switch);
wifi_switch.setOnClickListener(this);
if (wifi.isWifiEnabled()) {
wifi_switch.setImageResource(R.drawable.wifi_pressed);
} else {
wifi_switch.setImageResource(R.drawable.wifi_not_connected_pressed);
}
sendRequest();
}
@Override
protected void onPause() {
isProcessing = false;
super.onPause();
}
@Override
public void onClick(View v) {
int id = v.getId();
switch (id) {
case R.id.btn1:
case R.id.tgl_num1:
switchMode(1);
btn1.setBackgroundResource(R.drawable.tune_on);
btn2.setBackgroundResource(R.drawable.tune_off);
btn3.setBackgroundResource(R.drawable.tune_off);
btn4.setBackgroundResource(R.drawable.tune_off);
btn5.setBackgroundResource(R.drawable.tune_off);
btn_num1.setBackgroundResource(R.drawable.orange1);
btn_num2.setBackgroundResource(R.drawable.grey2);
btn_num3.setBackgroundResource(R.drawable.grey3);
btn_num4.setBackgroundResource(R.drawable.grey4);
btn_num5.setBackgroundResource(R.drawable.grey5);
break;
case R.id.btn2:
case R.id.tgl_num2:
switchMode(2);
btn1.setBackgroundResource(R.drawable.tune_off);
btn2.setBackgroundResource(R.drawable.tune_on);
btn3.setBackgroundResource(R.drawable.tune_off);
btn4.setBackgroundResource(R.drawable.tune_off);
btn5.setBackgroundResource(R.drawable.tune_off);
btn_num1.setBackgroundResource(R.drawable.grey1);
btn_num2.setBackgroundResource(R.drawable.orange2);
btn_num3.setBackgroundResource(R.drawable.grey3);
btn_num4.setBackgroundResource(R.drawable.grey4);
btn_num5.setBackgroundResource(R.drawable.grey5);
break;
case R.id.btn3:
case R.id.tgl_num3:
switchMode(3);
btn1.setBackgroundResource(R.drawable.tune_off);
btn2.setBackgroundResource(R.drawable.tune_off);
btn3.setBackgroundResource(R.drawable.tune_on);
btn4.setBackgroundResource(R.drawable.tune_off);
btn5.setBackgroundResource(R.drawable.tune_off);
btn_num1.setBackgroundResource(R.drawable.grey1);
btn_num2.setBackgroundResource(R.drawable.grey2);
btn_num3.setBackgroundResource(R.drawable.orange3);
btn_num4.setBackgroundResource(R.drawable.grey4);
btn_num5.setBackgroundResource(R.drawable.grey5);
break;
case R.id.btn4:
case R.id.tgl_num4:
switchMode(4);
btn1.setBackgroundResource(R.drawable.tune_off);
btn2.setBackgroundResource(R.drawable.tune_off);
btn3.setBackgroundResource(R.drawable.tune_off);
btn4.setBackgroundResource(R.drawable.tune_on);
btn5.setBackgroundResource(R.drawable.tune_off);
btn_num1.setBackgroundResource(R.drawable.grey1);
btn_num2.setBackgroundResource(R.drawable.grey2);
btn_num3.setBackgroundResource(R.drawable.grey3);
btn_num4.setBackgroundResource(R.drawable.orange4);
btn_num5.setBackgroundResource(R.drawable.grey5);
break;
case R.id.btn5:
case R.id.tgl_num5:
switchMode(5);
btn1.setBackgroundResource(R.drawable.tune_off);
btn2.setBackgroundResource(R.drawable.tune_off);
btn3.setBackgroundResource(R.drawable.tune_off);
btn4.setBackgroundResource(R.drawable.tune_off);
btn5.setBackgroundResource(R.drawable.tune_on);
btn_num1.setBackgroundResource(R.drawable.grey1);
btn_num2.setBackgroundResource(R.drawable.grey2);
btn_num3.setBackgroundResource(R.drawable.grey3);
btn_num4.setBackgroundResource(R.drawable.grey4);
btn_num5.setBackgroundResource(R.drawable.orange5);
break;
case R.id.wifi_switch:
displayDeviceInfo();
break;
case R.id.btn_home:
startActivity(new Intent(TuneActivity.this, MainActivity.class));
break;
}
}
void setTuneMode() {
Log.d("Response", " " + tuneMode);
switch (tuneMode) {
case 1:
btn1.setBackgroundResource(R.drawable.tune_on);
btn2.setBackgroundResource(R.drawable.tune_off);
btn3.setBackgroundResource(R.drawable.tune_off);
btn4.setBackgroundResource(R.drawable.tune_off);
btn5.setBackgroundResource(R.drawable.tune_off);
break;
case 2:
btn1.setBackgroundResource(R.drawable.tune_off);
btn2.setBackgroundResource(R.drawable.tune_on);
btn3.setBackgroundResource(R.drawable.tune_off);
btn4.setBackgroundResource(R.drawable.tune_off);
btn5.setBackgroundResource(R.drawable.tune_off);
break;
case 3:
btn1.setBackgroundResource(R.drawable.tune_off);
btn2.setBackgroundResource(R.drawable.tune_off);
btn3.setBackgroundResource(R.drawable.tune_on);
btn4.setBackgroundResource(R.drawable.tune_off);
btn5.setBackgroundResource(R.drawable.tune_off);
break;
case 4:
btn1.setBackgroundResource(R.drawable.tune_off);
btn2.setBackgroundResource(R.drawable.tune_off);
btn3.setBackgroundResource(R.drawable.tune_off);
btn4.setBackgroundResource(R.drawable.tune_on);
btn5.setBackgroundResource(R.drawable.tune_off);
break;
case 5:
btn1.setBackgroundResource(R.drawable.tune_off);
btn2.setBackgroundResource(R.drawable.tune_off);
btn3.setBackgroundResource(R.drawable.tune_off);
btn4.setBackgroundResource(R.drawable.tune_off);
btn5.setBackgroundResource(R.drawable.tune_on);
break;
default:
btn1.setBackgroundResource(R.drawable.tune_off);
btn2.setBackgroundResource(R.drawable.tune_off);
btn3.setBackgroundResource(R.drawable.tune_off);
btn4.setBackgroundResource(R.drawable.tune_off);
btn5.setBackgroundResource(R.drawable.tune_off);
}
}
@Override
public boolean onSupportNavigateUp() {
finish();
return true;
}
//Send to sGDP server to verify connection
public void sendRequest() {
if(isProcessing) {
// prepare the Request
JsonObjectRequest getRequest = new JsonObjectRequest(Request.Method.GET, url, null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
isConnected = true;
wifi_switch.setImageResource(R.drawable.wifi_pressed);
try {
JSONObject variables = response.getJSONObject("variables");
Log.d("TEST2 ", variables.toString());
tuneMode = variables.getInt("tune_mode");
String deviceName = response.getString("name");
deviceName += response.getString("id");
device = deviceName;
} catch (JSONException e) {
e.printStackTrace();
}
// display response
Log.d("Response", response.toString());
setTuneMode();
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
isConnected = false;
wifi_switch.setImageResource(R.drawable.wifi_not_connected_pressed);
Log.d("Error.Response", error.toString());
new SweetAlertDialog(TuneActivity.this, SweetAlertDialog.WARNING_TYPE)
.setTitleText("No Connection")
.setContentText("Your are not connected to GDP device")
.setCancelText("Cancel")
.setConfirmText("Connect")
.showCancelButton(true)
.setCancelClickListener(new SweetAlertDialog.OnSweetClickListener() {
@Override
public void onClick(SweetAlertDialog sDialog) {
sDialog.dismiss();
}
})
.setConfirmClickListener(new SweetAlertDialog.OnSweetClickListener() {
@Override
public void onClick(SweetAlertDialog sDialog) {
startActivity(new Intent(Settings.ACTION_WIFI_SETTINGS));
}
})
.show();
}
}
);
// add it to the RequestQueue
queue.add(getRequest);
} else {
finish();
}
}
void switchMode(int mode) {
// prepare the Request
JsonObjectRequest getRequest = new JsonObjectRequest(Request.Method.GET, url + "/change_mode?params=" + mode, null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
isConnected = true;
wifi_switch.setImageResource(R.drawable.wifi_pressed);
try {
tuneMode = response.getInt("return_value");
} catch (JSONException e) {
e.printStackTrace();
}
// display response
Log.d("Response", response.toString());
setTuneMode();
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
isConnected = false;
wifi_switch.setImageResource(R.drawable.wifi_not_connected_pressed);
Log.d("Error.Response", error.toString());
new SweetAlertDialog(TuneActivity.this, SweetAlertDialog.WARNING_TYPE)
.setTitleText("No Connection")
.setContentText("Your are not connected to GDP device")
.setCancelText("Cancel")
.setConfirmText("Connect")
.showCancelButton(true)
.setCancelClickListener(new SweetAlertDialog.OnSweetClickListener() {
@Override
public void onClick(SweetAlertDialog sDialog) {
sDialog.dismiss();
}
})
.setConfirmClickListener(new SweetAlertDialog.OnSweetClickListener() {
@Override
public void onClick(SweetAlertDialog sDialog) {
startActivity(new Intent(Settings.ACTION_WIFI_SETTINGS));
}
})
.show();
}
}
);
// add it to the RequestQueue
queue.add(getRequest);
}
//Show Connection details
void displayDeviceInfo() {
if (isProcessing) {
if (isConnected) {
new SweetAlertDialog(this, SweetAlertDialog.SUCCESS_TYPE)
.setTitleText("Connected")
.setContentText("You are connected to " + device)
.setConfirmText("ok")
.setConfirmClickListener(new SweetAlertDialog.OnSweetClickListener() {
@Override
public void onClick(SweetAlertDialog sDialog) {
// reuse previous dialog instance
sDialog.dismiss();
}
})
.show();
} else {
new SweetAlertDialog(this, SweetAlertDialog.WARNING_TYPE)
.setTitleText("No Connection")
.setContentText("Your are not connected to GDP device")
.setCancelText("Cancel")
.setConfirmText("Connect")
.showCancelButton(true)
.setCancelClickListener(new SweetAlertDialog.OnSweetClickListener() {
@Override
public void onClick(SweetAlertDialog sDialog) {
sDialog.dismiss();
}
})
.setConfirmClickListener(new SweetAlertDialog.OnSweetClickListener() {
@Override
public void onClick(SweetAlertDialog sDialog) {
startActivity(new Intent(Settings.ACTION_WIFI_SETTINGS));
}
})
.show();
}
}
}
}
再次，这是我最大的问题，我想首先解决这个问题，但也欢迎其他更正。