java - 加载应用程序时出错

Question

我是java新手。我创建了一个 ListView 并将我的包命名为 AndroidList 并尝试查看它如何在模拟器上工作，但它显示错误“不幸的是 Androidlist 已停止”。

这是.java代码

package com.exercise.androidlist;

import android.app.ListActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;

public class AndroidList extends ListActivity {

 String[] DayOfWeek = {"Sunday", "Monday", "Tuesday",
   "Wednesday", "Thursday", "Friday", "Saturday"
 };

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //setContentView(R.layout.main);
        setListAdapter(new ArrayAdapter<String>(this, 
        android.R.layout.simple_list_item_1, DayOfWeek));
    }
}

这是日志猫

    02-13 21:24:02.330: W/Trace(409): Unexpected value from nativeGetEnabledTags: 0
    02-13 21:24:02.330: W/Trace(409): Unexpected value from nativeGetEnabledTags: 0
    02-13 21:24:02.390: W/Trace(409): Unexpected value from nativeGetEnabledTags: 0
    02-13 21:24:02.390: W/Trace(409): Unexpected value from nativeGetEnabledTags: 0
    02-13 21:24:02.500: W/Trace(409): Unexpected value from nativeGetEnabledTags: 0
    02-13 21:24:02.531: W/Trace(409): Unexpected value from nativeGetEnabledTags: 0
    02-13 21:24:02.531: I/Choreographer(409): Skipped 35 frames! The application may be      doing too much work on its main thread.
    02-13 21:24:02.600: W/Trace(409): Unexpected value from nativeGetEnabledTags: 0
    02-13 21:24:02.600: W/Trace(409): Unexpected value from nativeGetEnabledTags: 0
    02-13 21:24:02.693: W/Trace(409): Unexpected value from nativeGetEnabledTags: 0
    02-13 21:24:02.693: W/Trace(409): Unexpected value from nativeGetEnabledTags: 0
    02-13 21:24:02.720: I/Choreographer(409): Skipped 44 frames!  The application may be doing too much work on its main thread.

   02-13 21:24:02.812: E/StrictMode(628): android.app.ServiceConnectionLeaked: Service    com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40cda940 that was originally bound here
02-13 21:24:02.812: E/StrictMode(628):  at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969)
02-13 21:24:02.812: E/StrictMode(628):  at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863)
02-13 21:24:02.812: E/StrictMode(628):  at android.app.ContextImpl.bindService(ContextImpl.java:1418)
02-13 21:24:02.812: E/StrictMode(628):  at android.app.ContextImpl.bindService(ContextImpl.java:1407)
02-13 21:24:02.812: E/StrictMode(628):  at android.content.ContextWrapper.bindService(ContextWrapper.java:473)
02-13 21:24:02.812: E/StrictMode(628):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157)
02-13 21:24:02.812: E/StrictMode(628):  at 
02-13 21:24:05.291: W/Trace(409): Unexpected value from nativeGetEnabledTags: 0
02-13 21:24:05.291: W/Trace(409): Unexpected value from nativeGetEnabledTags: 0
02-13 21:24:05.380: W/Trace(409): Unexpected value from nativeGetEnabledTags: 0
02-13 21:24:05.380: W/Trace(409): Unexpected value from nativeGetEnabledTags: 0
02-13 21:24:05.411: I/Choreographer(409): Skipped 39 frames!  The application may be doing too much work on its main thread.

Answer 1

setContentView(R.layout.main); 对于加载 Activity 的布局非常重要 =P

 @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        setListAdapter(new ArrayAdapter<String>(this, 
        android.R.layout.simple_list_item_1, DayOfWeek));
    }

并且您的 LogCat 消息没有任何与查找原因相关的内容，请查找单词“Exception”:)