问题
I am working on android quiz game. QuestionActivity and EndgameActivity are 2 classes in my game. I want when my game over control transferred to EndgameActivity. For this in QuestionActivty class i add
Intent i = new Intent(this, EndgameActivity.class);
startActivity(i);
finish();
in if(currentGame.isGameOver()) method. But after answering last question when my game over control not tranferring to EndgameActivity and log cat showing following errors.
QuestionActivity Class-
public class QuestionActivity extends Activity implements OnClickListener{
private Question currentQ;
private GamePlay currentGame;
private CountDownTimer counterTimer;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.question);
processScreen();
}
/**
* Configure current game and get question
*/
private void processScreen()
{
currentGame = ((CYKApplication)getApplication()).getCurrentGame();
currentQ = currentGame.getNextQuestion();
Button nextBtn1 = (Button) findViewById(R.id.answer1);
nextBtn1.setOnClickListener(this);
Button nextBtn2 = (Button) findViewById(R.id.answer2);
nextBtn2.setOnClickListener(this);
Button nextBtn3 = (Button) findViewById(R.id.answer3);
nextBtn3.setOnClickListener(this);
Button nextBtn4 = (Button) findViewById(R.id.answer4);
nextBtn4.setOnClickListener(this);
Button nextBtn5 = (Button) findViewById(R.id.answer5);
nextBtn5.setOnClickListener(this);
/**
* Update the question and answer options..
*/
setQuestions();
}
/**
* Method to set the text for the question and answers from the current games
* current question
*/
private void setQuestions() {
//set the question text from current question
String question = Utility.capitalise(currentQ.getQuestion());
TextView qText = (TextView) findViewById(R.id.question);
qText.setText(question);
//set the available options
List<String> answers = currentQ.getQuestionOptions();
TextView option1 = (TextView) findViewById(R.id.answer1);
option1.setText(Utility.capitalise(answers.get(0)));
TextView option2 = (TextView) findViewById(R.id.answer2);
option2.setText(Utility.capitalise(answers.get(1)));
TextView option3 = (TextView) findViewById(R.id.answer3);
option3.setText(Utility.capitalise(answers.get(2)));
TextView option4 = (TextView) findViewById(R.id.answer4);
option4.setText(Utility.capitalise(answers.get(3)));
int score = currentGame.getScore();
String scr = String.valueOf(score);
TextView score1 = (TextView) findViewById(R.id.score);
score1.setText(scr);
counterTimer=new CountDownTimer(15000, 1000) {
public void onFinish() {
if(currentGame.getRound()==20)
System.exit(0);
currentGame.decrementScore1();
processScreen();
}
public void onTick(long millisUntilFinished) {
TextView time = (TextView) findViewById(R.id.timers);
time.setText( ""+millisUntilFinished/1000);
}
};
counterTimer.start();
}
@Override
public void onResume() {
super.onResume();
}
@Override
public void onClick(View arg0) {
//Log.d("Questions", "Moving to next question");
if(arg0.getId()==R.id.answer5)
{
new AlertDialog.Builder(this)
.setMessage("Are you sure?")
.setCancelable(true)
.setPositiveButton("Yes",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int id) {
finish();
}
}).setNegativeButton("No", null).show();
}
else
{
if(!checkAnswer(arg0)) return;
/**
* check if end of game
*/
if (currentGame.isGameOver()){
//Log.d("Questions", "End of game! lets add up the scores..");
//Log.d("Questions", "Questions Correct: " + currentGame.getRight());
//Log.d("Questions", "Questions Wrong: " + currentGame.getWrong());
Intent i = new Intent(this, EndgameActivity.class);
startActivity(i);
finish();
}
else
{
Intent i = new Intent(this, QuestionActivity.class);
finish();
startActivity(i);
}
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
switch (keyCode)
{
case KeyEvent.KEYCODE_BACK :
return true;
}
return super.onKeyDown(keyCode, event);
}
/**
* Check if a checkbox has been selected, and if it
* has then check if its correct and update gamescore
*/
private boolean checkAnswer(View v) {
Button b = (Button) v;
String answer = b.getText().toString();
counterTimer.cancel();
b.setBackgroundResource(R.drawable.ans);
b.setEnabled(false);
//Log.d("Questions", "Valid Checkbox selection made - check if correct");
if (currentQ.getAnswer().equalsIgnoreCase(answer))
{
b.setBackgroundResource(R.drawable.ansgreen);
//Log.d("Questions", "Correct Answer!");
currentGame.incrementScore();
}
else{
b.setBackgroundResource(R.drawable.ansred);
//Log.d("Questions", "Incorrect Answer!");
currentGame.decrementScore();
}
return true;
}
}
EndgameActivity Class-
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class EndgameActivity extends Activity implements View.OnClickListener{
Button menue1, adde1;
TextView escore1;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(findViewById(R.layout.endgame));
menue1 = (Button) findViewById (R.id.menue);
menue1.setOnClickListener(this);
adde1 = (Button) findViewById(R.id.adde);
adde1.setOnClickListener(this);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
switch (keyCode)
{
case KeyEvent.KEYCODE_BACK :
return true;
}
return super.onKeyDown(keyCode, event);
}
@Override
public void onClick(View v) {
switch(v.getId()){
case R.id.menue:
Intent i= new Intent(this, SplashActivity.class);
startActivity(i);
break;
case R.id.adde:
Intent j = new Intent(this, HighscoreActivity.class);
startActivity(j);
break;
}
}
}
Log Cat-
09-09 18:32:14.668: D/AndroidRuntime(7617): Shutting down VM
09-09 18:32:14.668: W/dalvikvm(7617): threadid=1: thread exiting with uncaught exception (group=0x40a71930)
09-09 18:32:14.688: E/AndroidRuntime(7617): FATAL EXCEPTION: main
09-09 18:32:14.688: E/AndroidRuntime(7617): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=EndgameActivity }
09-09 18:32:14.688: E/AndroidRuntime(7617): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1622)
09-09 18:32:14.688: E/AndroidRuntime(7617): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1417)
09-09 18:32:14.688: E/AndroidRuntime(7617): at android.app.Activity.startActivityForResult(Activity.java:3370)
09-09 18:32:14.688: E/AndroidRuntime(7617): at android.app.Activity.startActivityForResult(Activity.java:3331)
09-09 18:32:14.688: E/AndroidRuntime(7617): at android.app.Activity.startActivity(Activity.java:3566)
09-09 18:32:14.688: E/AndroidRuntime(7617): at android.app.Activity.startActivity(Activity.java:3534)
09-09 18:32:14.688: E/AndroidRuntime(7617): at com.abc.cyk.QuestionActivity.onClick(QuestionActivity.java:143)
09-09 18:32:14.688: E/AndroidRuntime(7617): at android.view.View.performClick(View.java:4204)
09-09 18:32:14.688: E/AndroidRuntime(7617): at android.view.View$PerformClick.run(View.java:17355)
09-09 18:32:14.688: E/AndroidRuntime(7617): at android.os.Handler.handleCallback(Handler.java:725)
09-09 18:32:14.688: E/AndroidRuntime(7617): at android.os.Handler.dispatchMessage(Handler.java:92)
09-09 18:32:14.688: E/AndroidRuntime(7617): at android.os.Looper.loop(Looper.java:137)
09-09 18:32:14.688: E/AndroidRuntime(7617): at android.app.ActivityThread.main(ActivityThread.java:5041)
09-09 18:32:14.688: E/AndroidRuntime(7617): at java.lang.reflect.Method.invokeNative(Native Method)
09-09 18:32:14.688: E/AndroidRuntime(7617): at java.lang.reflect.Method.invoke(Method.java:511)
09-09 18:32:14.688: E/AndroidRuntime(7617): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
09-09 18:32:14.688: E/AndroidRuntime(7617): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
09-09 18:32:14.688: E/AndroidRuntime(7617): at dalvik.system.NativeStart.main(Native Method)
09-09 18:32:18.258: I/Process(7617): Sending signal. PID: 7617 SIG: 9
09-09 18:32:18.758: E/Trace(7693): error opening trace file: No such file or directory (2)
09-09 18:32:18.908: D/dalvikvm(7693): GC_FOR_ALLOC freed 58K, 8% free 2413K/2616K, paused 26ms, total 27ms
09-09 18:32:18.918: I/dalvikvm-heap(7693): Grow heap (frag case) to 4.553MB for 2160016-byte allocation
09-09 18:32:19.038: D/dalvikvm(7693): GC_FOR_ALLOC freed 1K, 5% free 4521K/4728K, paused 113ms, total 113ms
09-09 18:32:19.088: D/dalvikvm(7693): GC_CONCURRENT freed <1K, 5% free 4521K/4728K, paused 4ms+3ms, total 50ms
09-09 18:32:19.558: D/gralloc_goldfish(7693): Emulator without GPU emulation detected.
09-09 18:32:21.728: I/Choreographer(7693): Skipped 71 frames! The application may be doing too much work on its main thread.
Menifest File-
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.abc.cyk"
android:versionCode="3"
android:versionName="3.0">
<application android:icon="@drawable/cyk_icon_bg" android:label="@string/app_name" android:name=".CYKApplication" >
<activity android:name=".SplashScreen"
android:label="@string/app_name"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".QuestionActivity"
android:screenOrientation="landscape" />
<activity android:name=".SplashActivity"
android:screenOrientation="portrait" />
<activity android:name=".RulesActivity"
android:screenOrientation="portrait" />
<activity android:name=".EndgameActivity"
android:screenOrientation="portrait" />
<activity android:name=".HighscoreActivity"
android:screenOrientation="portrait" />
<activity android:name=".SettingsActivity"
android:screenOrientation="portrait" />
<activity android:name=".AnswersActivity" />
</application>
<uses-sdk android:minSdkVersion="2" />
</manifest>
I think maybe some error in timer method that cause these errors. Anyone know how to solve this error?
回答1:
i am going through your code, remove findViewById from your code
setContentView(findViewById(R.layout.endgame));
回答2:
Check your manifest file you register activity
android.content.ActivityNotFoundException: No Activity found to handle Intent { act=EndgameActivity }
回答3:
The problem is not that your EndgameActivity cannot be found. The exception:
ActivityNotFoundException: No Activity found to handle Intent { act=EndgameActivity }
tells you that EndgameActivity is somehow being treated as an action. This is odd because you are neither using the constructor Intent(String):
Intent i = new Intent("EndgameActivity");
Nor using Intent#setAction(String).
Try using the fully-qualified class name:
Intent i = new Intent(com.abc.cyk.QuestionActivity.this,
com.abc.cyk.EndgameActivity.class);
Another thing you can try:
Intent i = new Intent();
i.setClass(QuestionActivity.this, com.abc.cyk.EndgameActivity.class);
startActivity(i);
finish();
Although its unrelated to your current issue, I noticed that in EndgameActivity#onCreate(Bundle), you're using:
setContentView(findViewById(R.layout.endgame));
This should be changed to:
setContentView(R.layout.endgame);
回答4:
Addyour EndGame Activity in the manifest file. Logcat clearly says
android.content.ActivityNotFoundException: No Activity found to handle Intent { act=EndgameActivity }
Just add the EndgameActivity in the manifest file inside a new activity tag.
来源：https://stackoverflow.com/questions/18800528/unable-to-solve-errors-in-android