从列表视图启动新的活动

-2

可能重复：
Android ListView, start new activity 从列表视图启动新的活动

嘿有人可以告诉我怎么可以在ListView按下项目启动活动？

我已经修复它，我想因为我没有得到任何错误消息，但是当我开始这个活动（视频）时，应用程序崩溃并且希望强制关闭。有什么问题？

这里是源代码：

package com.alpha.liveshit; 

import android.app.ListActivity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.ArrayAdapter; 
import android.widget.ListView; 

public class Videos extends ListActivity { 

    String[] elements = {"video", "menu"}; 

    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

     setContentView(R.layout.videos); 
     ListView listview = (ListView)findViewById(R.id.listView1); 
     listview.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, elements)); 
    } 

    public void onListItemClick(ListView parent, View v, int position, long id) { 

     if ("video".equals(elements[position])) { 
      Intent myIntent = new Intent(Videos.this, Lars.class); 
      startActivity(myIntent); 
     } 
     else if ("menu".equals(elements[position])) { 
      Intent myIntent = new Intent(Videos.this, MenuActivity.class); 
      startActivity(myIntent); 
     } 
    } 
}

logcat的

09-07 20:34:21.559: ERROR/AndroidRuntime(326): FATAL EXCEPTION: main 
09-07 20:34:21.559: ERROR/AndroidRuntime(326): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.alpha.liveshit/com.alpha.liveshit.Videos}: java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list' 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663) 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  at android.app.ActivityThread.access$2300(ActivityThread.java:125) 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  at android.os.Handler.dispatchMessage(Handler.java:99) 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  at android.os.Looper.loop(Looper.java:123) 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  at android.app.ActivityThread.main(ActivityThread.java:4627) 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  at java.lang.reflect.Method.invokeNative(Native Method) 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  at java.lang.reflect.Method.invoke(Method.java:521) 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  at dalvik.system.NativeStart.main(Native Method) 
09-07 20:34:21.559: ERROR/AndroidRuntime(326): Caused by: java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list' 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  at android.app.ListActivity.onContentChanged(ListActivity.java:245) 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:201) 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  at android.app.Activity.setContentView(Activity.java:1647) 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  at com.alpha.liveshit.Videos.onCreate(Videos.java:17) 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627) 
09-07 20:34:21.559: ERROR/AndroidRuntime(326):  ... 11 more 
09-07 20:34:21.569: WARN/ActivityManager(60): Force finishing activity com.alpha.liveshit/.Videos 
09-07 20:34:21.580: WARN/ActivityManager(60): Force finishing activity com.alpha.liveshit/.MenuActivity 
09-07 20:34:22.079: WARN/ActivityManager(60): Activity pause timeout for HistoryRecord{450915a0 com.alpha.liveshit/.Videos} 
09-07 20:34:32.477: WARN/ActivityManager(60): Activity destroy timeout for HistoryRecord{45140c78 com.alpha.liveshit/.MenuActivity} 
09-07 20:34:32.479: WARN/ActivityManager(60): Activity destroy timeout for HistoryRecord{450915a0 com.alpha.liveshit/.Videos} 
09-07 20:34:35.058: INFO/Process(326): Sending signal. PID: 326 SIG: 9 
09-07 20:34:35.229: INFO/ActivityManager(60): Process com.alpha.liveshit (pid 326) has died. 
09-07 20:34:35.229: INFO/WindowManager(60): WIN DEATH: Window{4508ddb0 com.alpha.liveshit/com.alpha.liveshit.MenuActivity paused=true} 
09-07 20:35:45.255: DEBUG/SntpClient(60): request time failed: java.net.SocketException: Address family not supported by protocol 
09-07 20:37:00.329: DEBUG/dalvikvm(60): GC_FOR_MALLOC freed 19005 objects/859600 bytes in 249ms

来源

2011-09-07 Dennis Gimbergsson

如果您的应用程序崩溃，请发布logcat中出现的异常。 – Nick

您今天早些时候发布了这个问题。如果您有新的详细信息或信息，请不要转发问题，请编辑您的原始问题。看到[Android的ListView，开始新的活动]（http://stackoverflow.com/questions/7338475/android-listview-start-new-activity） – 2011-09-07 20:36:35

卸下

setContentView(R.layout.videos); 
ListView listview = (ListView)findViewById(R.id.listView1);

并与

取代它

您正在使用ListActivity。您不能在ListActivity上设置内容视图（它已经包含ListView）

来源

2011-09-07 20:44:20

从列表视图启动新的活动

回答

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