Question

모든 파일경로 리커시브이용 출력

);
  

 

Answer 1

setText는 온크리트안에있고 printFileList() 가는 소스가없어서 그런거같은데요?

온크리트안에 함수가는소스를 넣던지 setText를 add 후에 넣어셔서 해보시길

Comments

private void printFileList() 이 메소드를 불러서
text2에 출력해야되는데...메소드를 부르는걸 모르겟네요..ㅋㅋ

---

public void printFileList() {
fList = new ArrayList<String>();
String path = Environment.getExternalStorageDirectory().toString();
fList.addAll(getFileList(path));
text2.setText(path.toString());

Log.e("path", ""+fList.size());
for(int i=0;i<fList.size();i++) {
Log.e("path", ""+fList.get(i));
}

이런식으로 해봤죠..근데 결과가 않나오네요.

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온크리트안에
text2 = (TextView) findViewById(R.id.text2);
prinFileList();

add 다음에     text2.setText(fList.toString()); 넣으면될거같은데요

---

저도 그렇게 해보았는데..
printFileList() 부분에서 오류가나네요


04-27 09:23:19.953: E/AndroidRuntime(620): FATAL EXCEPTION: main
04-27 09:23:19.953: E/AndroidRuntime(620): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.andro/com.andro.magnifyActivity}: java.lang.NullPointerException
04-27 09:23:19.953: E/AndroidRuntime(620):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059)
04-27 09:23:19.953: E/AndroidRuntime(620):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
04-27 09:23:19.953: E/AndroidRuntime(620):     at android.app.ActivityThread.access$600(ActivityThread.java:130)
04-27 09:23:19.953: E/AndroidRuntime(620):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
04-27 09:23:19.953: E/AndroidRuntime(620):     at android.os.Handler.dispatchMessage(Handler.java:99)
04-27 09:23:19.953: E/AndroidRuntime(620):     at android.os.Looper.loop(Looper.java:137)
04-27 09:23:19.953: E/AndroidRuntime(620):     at android.app.ActivityThread.main(ActivityThread.java:4745)
04-27 09:23:19.953: E/AndroidRuntime(620):     at java.lang.reflect.Method.invokeNative(Native Method)
04-27 09:23:19.953: E/AndroidRuntime(620):     at java.lang.reflect.Method.invoke(Method.java:511)
04-27 09:23:19.953: E/AndroidRuntime(620):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
04-27 09:23:19.953: E/AndroidRuntime(620):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
04-27 09:23:19.953: E/AndroidRuntime(620):     at dalvik.system.NativeStart.main(Native Method)
04-27 09:23:19.953: E/AndroidRuntime(620): Caused by: java.lang.NullPointerException
04-27 09:23:19.953: E/AndroidRuntime(620):     at com.andro.magnifyActivity.getFileList(magnifyActivity.java:168)
04-27 09:23:19.953: E/AndroidRuntime(620):     at com.andro.magnifyActivity.printFileList(magnifyActivity.java:154)
04-27 09:23:19.953: E/AndroidRuntime(620):     at com.andro.magnifyActivity.onCreate(magnifyActivity.java:44)
04-27 09:23:19.953: E/AndroidRuntime(620):     at android.app.Activity.performCreate(Activity.java:5008)
04-27 09:23:19.953: E/AndroidRuntime(620):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
04-27 09:23:19.953: E/AndroidRuntime(620):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)