我在项目中找不到问题。我打开一个带有四个按钮的菜单，它们应该将用户带到其他活动，但他们不会。按任何按钮时应用程序崩溃。
这是我的菜单类
package com.example.androidintermediate;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
public class Menu extends Activity implements OnClickListener {
String activities[] = { "ACTIVITYMAIN", "SETTINGS", "INTERNALSTORE",
"READING" };
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.menu);
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
int id = v.getId();
for (int i = 0; i < activities.length; i++) {
if (id == getResources().getIdentifier("b" + i, "id",
"com.example.androidintermediate")) {
Intent intent = new Intent("com.example.androidintermediate."
+ activities[i]);
startActivity(intent);
}
}
}
}
logcat的
11-03 20:02:54.927: D/OpenGLRenderer(1384): Enabling debug mode 0
11-03 20:02:56.267: D/AndroidRuntime(1384): Shutting down VM
11-03 20:02:56.267: W/dalvikvm(1384): threadid=1: thread exiting with uncaught exception (group=0xa6178908)
11-03 20:02:56.271: E/AndroidRuntime(1384): FATAL EXCEPTION: main
11-03 20:02:56.271: E/AndroidRuntime(1384): java.lang.IllegalStateException: Could not execute method of the activity
11-03 20:02:56.271: E/AndroidRuntime(1384): at android.view.View$1.onClick(View.java:3599)
11-03 20:02:56.271: E/AndroidRuntime(1384): at android.view.View.performClick(View.java:4204)
11-03 20:02:56.271: E/AndroidRuntime(1384): at android.view.View$PerformClick.run(View.java:17355)
11-03 20:02:56.271: E/AndroidRuntime(1384): at android.os.Handler.handleCallback(Handler.java:725)
11-03 20:02:56.271: E/AndroidRuntime(1384): at android.os.Handler.dispatchMessage(Handler.java:92)
11-03 20:02:56.271: E/AndroidRuntime(1384): at android.os.Looper.loop(Looper.java:137)
11-03 20:02:56.271: E/AndroidRuntime(1384): at android.app.ActivityThread.main(ActivityThread.java:5041)
11-03 20:02:56.271: E/AndroidRuntime(1384): at java.lang.reflect.Method.invokeNative(Native Method)
11-03 20:02:56.271: E/AndroidRuntime(1384): at java.lang.reflect.Method.invoke(Method.java:511)
11-03 20:02:56.271: E/AndroidRuntime(1384): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
11-03 20:02:56.271: E/AndroidRuntime(1384): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
11-03 20:02:56.271: E/AndroidRuntime(1384): at dalvik.system.NativeStart.main(Native Method)
11-03 20:02:56.271: E/AndroidRuntime(1384): Caused by: java.lang.reflect.InvocationTargetException
11-03 20:02:56.271: E/AndroidRuntime(1384): at java.lang.reflect.Method.invokeNative(Native Method)
11-03 20:02:56.271: E/AndroidRuntime(1384): at java.lang.reflect.Method.invoke(Method.java:511)
11-03 20:02:56.271: E/AndroidRuntime(1384): at android.view.View$1.onClick(View.java:3594)
11-03 20:02:56.271: E/AndroidRuntime(1384): ... 11 more
11-03 20:02:56.271: E/AndroidRuntime(1384): Caused by: android.content.ActivityNotFoundException: No Activity found to handle Intent { act=com.example.androidintermediate.ACTIVITYMAIN }
11-03 20:02:56.271: E/AndroidRuntime(1384): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1622)
11-03 20:02:56.271: E/AndroidRuntime(1384): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1417)
11-03 20:02:56.271: E/AndroidRuntime(1384): at android.app.Activity.startActivityForResult(Activity.java:3370)
11-03 20:02:56.271: E/AndroidRuntime(1384): at android.app.Activity.startActivityForResult(Activity.java:3331)
11-03 20:02:56.271: E/AndroidRuntime(1384): at android.app.Activity.startActivity(Activity.java:3566)
11-03 20:02:56.271: E/AndroidRuntime(1384): at android.app.Activity.startActivity(Activity.java:3534)
11-03 20:02:56.271: E/AndroidRuntime(1384): at com.example.androidintermediate.Menu.onClick(Menu.java:31)
11-03 20:02:56.271: E/AndroidRuntime(1384): ... 14 more
11-03 20:02:58.603: I/Process(1384): Sending signal. PID: 1384 SIG: 9
清单
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.androidintermediate"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".Menu"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.ACTIVITYMAIN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".Settings"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.SETTINGS" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".InternalStorage"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.INTERNALSTORAGE" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".Reading"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.READING" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".Numbers"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.NUMBERS" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>
答案 0 :(得分：0)
创建意图时，您没有拼出完整的包名称。这样做：
Intent intent = new Intent(Menu.this, YourActivity.class);