一、错误:Unknown host api.tudou.com, throwing
UnknownHostException。
解决办法:
在AndroidManifest.xml中添加<uses-permission
android:name="android.permission.INTERNET" />
二、Unable to find explicit activity class?
have you declared this activity in your
AndroidManifest.xml?
解决办法:
在AndroidManifest.xml的application段添加声明:<activity android:name=".ActivityName" />,
详情见:
http://stackoverflow.com/questions/736571/using-intent-in-an-android-application-to-show-another-activity
三、ListActivity setContentView错误:
代码及相关xml如下:
main.xml:
<ListView android:id="@+id/list"
???????????
android:layout_width="fill_parent"
???????????
android:layout_height="fill_parent"
???????????
android:drawSelectorOnTop="false"/>
tudouPlayer.java:
public class tudouPlayer extends ListActivity implements
OnClickListener
{???
???
@Override
??? public void
onCreate(Bundle savedInstanceState)
??? {
???????
super.onCreate(savedInstanceState);
???????
setContentView(R.layout.main);
??? }
}
编译不会报错,运行时,adb打出来的错误为:
E/AndroidRuntime(? 701):
java.lang.RuntimeException: Unable to start activity
ComponentInfo{com.java.tudouPlayer/com.java.tudouPlayer.tudouPlayer}:
java.lang.RuntimeException: Your content must have a ListView whose
id attribute is 'android.R.id.list'
解决办法:
将main.xml中,上面贴出来的那段改为(原因见注释):
???????
<!-- Here is the list. Since we are using a
ListActivity, we
????????????
have to call it "@android:id/list" so ListActivity will
????????????
find it -->
?????
?
???????
<ListView android:id="@android:id/list"
???????????
android:layout_width="fill_parent"
???????????
android:layout_height="fill_parent"
???????????
android:drawSelectorOnTop="false"/>