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내부 메모리에 저장된 파일에서 내용을 읽고 ListView에 내용을 기록해야합니다. 내 코드는 아래와 같습니다 :안드로이드의 LISTVIEW에 내부 파일 내용 쓰기
StringBuilder sb = new StringBuilder();
FileInputStream fis = null;
try{
BufferedReader reader = new BufferedReader(new InputStreamReader(fis, "UTF-8"));
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line).append("\n");
}
fis.close();
} catch(OutOfMemoryError om){
om.printStackTrace();
} catch(Exception ex){
ex.printStackTrace();
}
@SuppressWarnings("unused")
String result = sb.toString();
ListView myListView = (ListView) findViewById(R.id.scores_display);
String[] strings = new String[]{"Test1","Test2"};
ArrayAdapter<String> myArrayAdapter= new ArrayAdapter<String>(this, R.id.scores_display,strings);
myListView.setAdapter(myArrayAdapter);
디버깅 목적으로, 나는 방금 배열에 표시 할 문자열 배열을 요청했습니다. 하지만이 액티비티를 열려고하면 앱이 다운됩니다. 아래 logcat 오류 보고서가 붙여 넣습니다.
07-27 06:17:23.991: E/Trace(769): error opening trace file: No such file or directory (2)
07-27 06:17:52.536: E/AndroidRuntime(769): FATAL EXCEPTION: main
07-27 06:17:52.536: E/AndroidRuntime(769): android.content.res.Resources$NotFoundException: Resource ID #0x7f090004 type #0x12 is not valid
07-27 06:17:52.536: E/AndroidRuntime(769): at android.content.res.Resources.loadXmlResourceParser(Resources.java:2144)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.content.res.Resources.getLayout(Resources.java:853)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.view.LayoutInflater.inflate(LayoutInflater.java:394)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:371)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.widget.ArrayAdapter.getView(ArrayAdapter.java:362)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.widget.AbsListView.obtainView(AbsListView.java:2159)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.widget.ListView.measureHeightOfChildren(ListView.java:1246)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.widget.ListView.onMeasure(ListView.java:1158)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.view.View.measure(View.java:15518)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.widget.RelativeLayout.measureChild(RelativeLayout.java:666)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:477)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.view.View.measure(View.java:15518)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4825)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.view.View.measure(View.java:15518)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.widget.LinearLayout.measureVertical(LinearLayout.java:847)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.view.View.measure(View.java:15518)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4825)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
07-27 06:17:52.536: E/AndroidRuntime(769): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2176)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.view.View.measure(View.java:15518)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1874)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1089)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1265)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:989)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4351)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.view.Choreographer.doCallbacks(Choreographer.java:562)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.view.Choreographer.doFrame(Choreographer.java:532)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.os.Handler.handleCallback(Handler.java:725)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.os.Handler.dispatchMessage(Handler.java:92)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.os.Looper.loop(Looper.java:137)
07-27 06:17:52.536: E/AndroidRuntime(769): at android.app.ActivityThread.main(ActivityThread.java:5041)
07-27 06:17:52.536: E/AndroidRuntime(769): at java.lang.reflect.Method.invokeNative(Native Method)
07-27 06:17:52.536: E/AndroidRuntime(769): at java.lang.reflect.Method.invoke(Method.java:511)
07-27 06:17:52.536: E/AndroidRuntime(769): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
07-27 06:17:52.536: E/AndroidRuntime(769): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
07-27 06:17:52.536: E/AndroidRuntime(769): at dalvik.system.NativeStart.main(Native Method)
logcat 보고서를 이해할 수 없습니다. 실수를 설명하여 나를 도우십시오.