Java.lang.illegalstateexception: Could Not Execute Method For Android:onclick

Java.lang.illegalstateexception: Could Not Execute Method For Android:onclick. Caused by java.lang.nullpointerexception attempt to invoke virtual method 'boolean android.content.intent.getbooleanextra(java.lang.string, boolean)' on a null object reference 刚过了个五一假，来了就炸了，看到firebase上因为这个错误影响了一万多个用户，崩溃了近两万次，看到我也崩溃了，仔细查看了代码，有回调的跳转，很简单的东 If you use android:onclick=setlogin then you need to make a method with the same name, setlogin:

java (Android) Leer texto desde fichero en web Stack Overflow en from es.stackoverflow.com

Do not mix layout with code by using android:onclick tag in your xml. // please be noted that you need to add the view v parameter public void setlogin(view v) { } advice: If you use android:onclick=setlogin then you need to make a method with the same name, setlogin:

Source: es.stackoverflow.com

// please be noted that you need to add the view v parameter public void setlogin(view v) { } advice: Do not mix layout with code by using android:onclick tag in your xml.

Source: www.masterqna.com

Do not mix layout with code by using android:onclick tag in your xml. Instead, move the click method to your class with onclicklistener method.

If You Use Android:onclick=Setlogin Then You Need To Make A Method With The Same Name, Setlogin:

Caused by java.lang.nullpointerexception attempt to invoke virtual method 'boolean android.content.intent.getbooleanextra(java.lang.string, boolean)' on a null object reference 刚过了个五一假，来了就炸了，看到firebase上因为这个错误影响了一万多个用户，崩溃了近两万次，看到我也崩溃了，仔细查看了代码，有回调的跳转，很简单的东 // please be noted that you need to add the view v parameter public void setlogin(view v) { } advice: Do not mix layout with code by using android:onclick tag in your xml.

Instead, Move The Click Method To Your Class With Onclicklistener Method.