java – Can't create handler inside thread that has not called Looper.prepare()-ThrowExceptions

Exception or error: I get this error “Can’t create handler inside thread that has not called Looper.prepare()” Can you tell me how to fix it? public class PaymentActivity extends BaseActivity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.payment); final Button buttonBank = (Button) findViewById(R.id.buttonBank); buttonBank.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { progressDialog = …

android – Can't toast on a thread that has not called Looper.prepare()-ThrowExceptions

Exception or error: I try to run a test for my android app but I get this trace. What does it mean? java.lang.RuntimeException: Can’t toast on a thread that has not called Looper.prepare() at android.widget.Toast$TN.<init>(Toast.java:390) at android.widget.Toast.<init>(Toast.java:114) at android.widget.Toast.makeText(Toast.java:277) at android.widget.Toast.makeText(Toast.java:267) at dev.android.gamex.CatchGame.onDraw(MainActivity.java:317) at dev.android.gamex.JamieTest.useAppContext(JamieTest.java:45) at java.lang.reflect.Method.invoke(Native Method) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at …

java – Android smooth game loop-ThrowExceptions

Exception or error: I have problems with smooth scrolling in OpenGL (testing on SGS2 and ACE) I created simple applications – only fixed speed horizontal scrolling of images, or only one image (player) moving by accelerator, but it’s movement is not smooth 🙁 I tried many various of code but no satisfaction… first I tried …

android – methods in foreach and for loops in java-ThrowExceptions

Exception or error: My question is regarding optimization in java using the Android compiler. Will map.values() in the following be called every iteration, or will the Android compiler optimize it out. LinkedHashMap<String, Object> map; for (Object object : map.values()) { //do something with object } Likewise here is another example. will aList.size() be called every …

android – Uncaught exception in Firebase runloop (3.0.0)-ThrowExceptions

Exception or error: I’m using the latest firebase(9.0.2): build.gradle: dependencies { … compile “com.google.firebase:firebase-database:9.0.2” compile ‘com.google.firebase:firebase-auth:9.0.2’ } apply plugin: ‘com.google.gms.google-services’ Project build.gradle classpath ‘com.google.gms:google-services:3.0.0’ And after some time application starts crashing with this Exception: Fatal Exception: java.lang.RuntimeException: Uncaught exception in Firebase runloop (3.0.0). Please report to support@firebase.com at com.google.android.gms.internal.zzadp$1$1.run(Unknown Source) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at …