07-11 13:43:26.184: E/AndroidRuntime(10229): FATAL EXCEPTION: main
07-11 13:43:26.184: E/AndroidRuntime(10229): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.txrj.sms/com.txrj.sms.activity.CreateMessageActivity}: java.lang.IllegalArgumentException: The key must be an application-specific resource id.
07-11 13:43:26.184: E/AndroidRuntime(10229): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1970)
07-11 13:43:26.184: E/AndroidRuntime(10229): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1995)
07-11 13:43:26.184: E/AndroidRuntime(10229): at android.app.ActivityThread.access$600(ActivityThread.java:128)
07-11 13:43:26.184: E/AndroidRuntime(10229): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1161)
07-11 13:43:26.184: E/AndroidRuntime(10229): at android.os.Handler.dispatchMessage(Handler.java:99)
07-11 13:43:26.184: E/AndroidRuntime(10229): at android.os.Looper.loop(Looper.java:137)
07-11 13:43:26.184: E/AndroidRuntime(10229): at android.app.ActivityThread.main(ActivityThread.java:4517)
07-11 13:43:26.184: E/AndroidRuntime(10229): at java.lang.reflect.Method.invokeNative(Native Method)
07-11 13:43:26.184: E/AndroidRuntime(10229): at java.lang.reflect.Method.invoke(Method.java:511)
07-11 13:43:26.184: E/AndroidRuntime(10229): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:993)
07-11 13:43:26.184: E/AndroidRuntime(10229): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:760)
07-11 13:43:26.184: E/AndroidRuntime(10229): at dalvik.system.NativeStart.main(Native Method)
07-11 13:43:26.184: E/AndroidRuntime(10229): Caused by: java.lang.IllegalArgumentException: The key must be an application-specific resource id.
07-11 13:43:26.184: E/AndroidRuntime(10229): at android.view.View.setTag(View.java:12585)
07-11 13:43:26.184: E/AndroidRuntime(10229): at com.txrj.sms.activity.CreateMessageActivity.getRecipientItem(CreateMessageActivity.java:47)
07-11 13:43:26.184: E/AndroidRuntime(10229): at com.txrj.sms.activity.CreateMessageActivity.onCreate(CreateMessageActivity.java:41)
07-11 13:43:26.184: E/AndroidRuntime(10229): at android.app.Activity.performCreate(Activity.java:4470)
07-11 13:43:26.184: E/AndroidRuntime(10229): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1053)
07-11 13:43:26.184: E/AndroidRuntime(10229): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1934)
07-11 13:43:26.184: E/AndroidRuntime(10229): ... 11 more
原因分析：
setTag是android的view類中很有用的一個方法，可以用它來給空間附加一些信息，在很多場合下都得到妙用。
setTag（Object tag)方法比較簡單，這里主要談一談帶兩個參數的setTag方法。
官方的api文檔中提到：
“The specified key should be an id declared in the resources of the application to ensure it is unique (see the ID resource type). Keys identified as belonging to the Android framework or not associated with any package will cause an IllegalArgumentExceptionto be thrown.”
所以拋出IllegalArgumentException的原因就在於key不唯一，那么如何保證這種唯一性呢？定義一個final類型的int變量和硬編碼一個值的方式都是行不通的。
如果只需要設置一個tag，那么直接調用setTag（Object tag)方法就可以輕松搞定，如果一定需要使用多個tag綁定，那么需要先在res/values/ids.xml中添加
<resources>
<item type="id" name="tag_first"></item>
<item type="id" name="tag_second"></item>
</resources>
使用的時候寫成
imageView.setTag(R.id.tag_first, "Hello");
imageView.setTag(R.id.tag_second, "Success");就可以了
參考：http://blog.csdn.net/furongkang/article/details/7267317