지오 코더가 꺼내지 않음 주소 :

Question

:

지오 코더 (Geocoder)에게 주소를 알려주지 못해서 문제가 발생했지만 그 이유는 모르겠습니다. IndexOutOfBoundsException가 :

public void button_address (View v){ 
//Create Geocoder 
gc = new Geocoder(this, Locale.getDefault()); 
//The string pulled from the app to be used in the Geocoder 
String loc = address.getText().toString(); 
//The list the Geocoder will fill 
List<Address> add; 
//Check to make sure there is a value in loc 
Log.d(TAG, loc); 
Log.d(TAG, "Before try/catch"); 
try { 
    //Request Gecoder return string loc with an address for add 
    add = gc.getFromLocationName(loc, 1); 
    add.isEmpty(); 
    //Check to see if add is empty 
    if(add.isEmpty()){ Log.d(TAG, "ADD is empty"); } 

    double lat = add.get(0).getLatitude(); 
    double lon = add.get(0).getLongitude(); 
    Log.d(TAG, "lat:" + lat + ", long:" + lon); 

} catch (IOException e) { 
    Toast toast = Toast.makeText(this, "Please Try Entering Another Address", 
      Toast.LENGTH_SHORT); 
    toast.show(); 
    e.printStackTrace(); 

} 

지금 여기 이렇게 빈 수익을 추가 한 다음 로그 캣에서 내가 얻을 사실에 기초 내 로그 캣

05-24 19:33:21.309: D/MainActivity(32508): 3111 world Dr, lake Buena vista, fl 32830 
05-24 19:33:21.309: D/MainActivity(32508): Before try/catch 
05-24 19:33:21.329: D/MainActivity(32508): ADD is empty 
05-24 19:33:21.329: D/AndroidRuntime(32508): Shutting down VM 
05-24 19:33:21.329: W/dalvikvm(32508): threadid=1: thread exiting with uncaught exception (group=0x40a13300) 
05-24 19:33:21.418: E/AndroidRuntime(32508): FATAL EXCEPTION: main 
05-24 19:33:21.418: E/AndroidRuntime(32508): java.lang.IllegalStateException: Could not execute method of the activity 
05-24 19:33:21.418: E/AndroidRuntime(32508): at android.view.View$1.onClick(View.java:3591) 
05-24 19:33:21.418: E/AndroidRuntime(32508): at android.view.View.performClick(View.java:4084) 
05-24 19:33:21.418: E/AndroidRuntime(32508): at android.view.View$PerformClick.run(View.java:16966) 
05-24 19:33:21.418: E/AndroidRuntime(32508): at android.os.Handler.handleCallback(Handler.java:615) 
05-24 19:33:21.418: E/AndroidRuntime(32508): at android.os.Handler.dispatchMessage(Handler.java:92) 
05-24 19:33:21.418: E/AndroidRuntime(32508): at android.os.Looper.loop(Looper.java:137) 
05-24 19:33:21.418: E/AndroidRuntime(32508): at android.app.ActivityThread.main(ActivityThread.java:4745) 
05-24 19:33:21.418: E/AndroidRuntime(32508): at java.lang.reflect.Method.invokeNative(Native Method) 
05-24 19:33:21.418: E/AndroidRuntime(32508): at java.lang.reflect.Method.invoke(Method.java:511) 
05-24 19:33:21.418: E/AndroidRuntime(32508): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 
05-24 19:33:21.418: E/AndroidRuntime(32508): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
05-24 19:33:21.418: E/AndroidRuntime(32508): at dalvik.system.NativeStart.main(Native Method) 
05-24 19:33:21.418: E/AndroidRuntime(32508): Caused by: java.lang.reflect.InvocationTargetException 
05-24 19:33:21.418: E/AndroidRuntime(32508): at java.lang.reflect.Method.invokeNative(Native Method) 
05-24 19:33:21.418: E/AndroidRuntime(32508): at java.lang.reflect.Method.invoke(Method.java:511) 
05-24 19:33:21.418: E/AndroidRuntime(32508): at android.view.View$1.onClick(View.java:3586) 
05-24 19:33:21.418: E/AndroidRuntime(32508): ... 11 more 
05-24 19:33:21.418: E/AndroidRuntime(32508): Caused by: java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0 
05-24 19:33:21.418: E/AndroidRuntime(32508): at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251) 
05-24 19:33:21.418: E/AndroidRuntime(32508): at java.util.ArrayList.get(ArrayList.java:304) 
05-24 19:33:21.418: E/AndroidRuntime(32508): ... 14 more 
05-24 19:33:23.839: I/Process(32508): Sending signal. PID: 32508 SIG: 9 

입니다 잘못된 인덱스 0, 크기는 0 내가 그 확신입니다 어떻게 든 지오 코더가 실패합니다. 매니페스트에서 인터넷 사용 권한을 가지고 있으며 인터넷이 웹 브라우저를 통해 에뮬레이터에서 작동하는지 확인했습니다.

바라기를 다른 사람들은 제가 놓친 간단한 문제를 볼 수 있습니다. 모든 도움을 주셔서 미리 감사드립니다.

Answer 1

isEmpty를 검사 할 수 있지만 다음 줄의 목록에서 요소를 가져 오려고합니다.

try { 
    //Request Gecoder return string loc with an address for add 
    add = gc.getFromLocationName(loc, 1); 
    add.isEmpty(); 
    //Check to see if add is empty 
    if(add.isEmpty()){ Log.d(TAG, "ADD is empty"); } 
    else { 
    double lat = add.get(0).getLatitude(); 
    double lon = add.get(0).getLongitude(); 
    Log.d(TAG, "lat:" + lat + ", long:" + lon); 
    } 
} catch (IOException e) { 
    Toast toast = Toast.makeText(this, "Please Try Entering Another Address", 
      Toast.LENGTH_SHORT); 
    toast.show(); 
    e.printStackTrace(); 

}