我試圖運行在2.3.1模擬器我的第一個Hello World應用程序,但我得到了以下錯誤消息第一個應用程序:「該應用程序的Hello World(過程com.helloworld)已意外停止,請重再次運行在Android模擬器
有什麼能發生這種情況的原因
這裏是源代碼:
package com.helloworld;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class HelloWorldActivity extends Activity implements View.OnClickListener {
Button button;
int touchCount;
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
button = new Button(this); //create the Button
button.setText("Touch me"); //set its initial text
button.setOnClickListener(this);
setContentView(button);
}
public void onClick(View v) {
touchCount++; //Increase the touchCount
button.setText("Touched me " + touchCount + "time(s)");
}
}
堆棧跟蹤:
05-10 17:32:18.749: ERROR/AndroidRuntime(511): FATAL EXCEPTION: main
05-10 17:32:18.749: ERROR/AndroidRuntime(511): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.helloworld/com.helloworld.HelloWorld.activity}: java.lang.ClassNotFoundException: com.helloworld.HelloWorld.activity in loader dalvik.system.PathClassLoader[/data/app/com.helloworld-1.apk]
05-10 17:32:18.749: ERROR/AndroidRuntime(511): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1544)
05-10 17:32:18.749: ERROR/AndroidRuntime(511): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1638)
05-10 17:32:18.749: ERROR/AndroidRuntime(511): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
05-10 17:32:18.749: ERROR/AndroidRuntime(511): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:928)
05-10 17:32:18.749: ERROR/AndroidRuntime(511): at android.os.Handler.dispatchMessage(Handler.java:99)
05-10 17:32:18.749: ERROR/AndroidRuntime(511): at android.os.Looper.loop(Looper.java:123)
05-10 17:32:18.749: ERROR/AndroidRuntime(511): at android.app.ActivityThread.main(ActivityThread.java:3647)
05-10 17:32:18.749: ERROR/AndroidRuntime(511): at java.lang.reflect.Method.invokeNative(Native Method)
05-10 17:32:18.749: ERROR/AndroidRuntime(511): at java.lang.reflect.Method.invoke(Method.java:507)
05-10 17:32:18.749: ERROR/AndroidRuntime(511): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
05-10 17:32:18.749: ERROR/AndroidRuntime(511): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
05-10 17:32:18.749: ERROR/AndroidRuntime(511): at dalvik.system.NativeStart.main(Native Method)
05-10 17:32:18.749: ERROR/AndroidRuntime(511): Caused by: java.lang.ClassNotFoundException: com.helloworld.HelloWorld.activity in loader dalvik.system.PathClassLoader[/data/app/com.helloworld-1.apk]
05-10 17:32:18.749: ERROR/AndroidRuntime(511): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
05-10 17:32:18.749: ERROR/AndroidRuntime(511): at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
05-10 17:32:18.749: ERROR/AndroidRuntime(511): at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
05-10 17:32:18.749: ERROR/AndroidRuntime(511): at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
05-10 17:32:18.749: ERROR/AndroidRuntime(511): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1536)
05-10 17:32:18.749: ERROR/AndroidRuntime(511): ... 11 more
你應該沒有職位的錯誤的截圖,但堆棧跟蹤。 – RoflcoptrException 2011-05-10 17:08:40
請在您的問題中發佈所有相關的源代碼,Logcat輸出等,而不是使用外部網站。我無法查看圖像,因爲IT策略會阻止它。 – Trevor 2011-05-10 17:17:51
@ Trev16v - 我修好了。 – kachilous 2011-05-10 17:25:36