함수 말고, 앱을 실행시켜 스크롤을 움직이는건 잘되는데요.
페이지 이동시마다, 스크롤을 맨 위로 초기화 하고 싶어서.
sv.fullScroll(ScrollView.FOCUS_DOWN);
나 sv.smoothScrollTo(0, 0); 를모두 이용해 봐도, 해당 함수가 실행되는 시점에서 오류가 생깁니다ㅠ
package com.example.fellingrecorder;
import android.app.Activity;
import android.graphics.Color;
import android.media.AudioManager;
import android.media.SoundPool;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewTreeObserver;
import android.widget.ScrollView;
import android.widget.TextView;
public class NeedsActivity extends BaseActivity implements OnClickListener {
//Scroll View
ScrollView sv;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.needslist);
//Scroll view initialize
ScrollView sv = (ScrollView)findViewById(R.id.scrollView1);
InitialTextEdit()
}
public void InitialTextEdit()
{
sv.fullScroll(ScrollView.FOCUS_DOWN);
//sv.smoothScrollTo(0, 0);//scroll initialize
}
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffffff"
android:orientation="vertical" >
<ScrollView
android:id="@+id/scrollView1"
android:scrollbars="@null"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1" >
<LinearLayout
android:id="@+id/fragment"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/detailNeeds1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="7dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="7dp"
android:layout_marginTop="7dp"
android:text=""
android:textSize="20sp"
android:textStyle="bold" />
</LinearLayout>
</ScrollView>
</LinearLayout>
에러 로그
02-06 03:17:58.833: E/AndroidRuntime(5414): FATAL EXCEPTION: main
02-06 03:17:58.833: E/AndroidRuntime(5414): java.lang.NullPointerException
02-06 03:17:58.833: E/AndroidRuntime(5414): at com.example.fellingrecorder.NeedsActivity.InitialTextEdit(NeedsActivity.java:145)
02-06 03:17:58.833: E/AndroidRuntime(5414): at com.example.fellingrecorder.NeedsActivity.onClick(NeedsActivity.java:155)
02-06 03:17:58.833: E/AndroidRuntime(5414): at android.view.View.performClick(View.java:4084)
02-06 03:17:58.833: E/AndroidRuntime(5414): at android.view.View$PerformClick.run(View.java:16966)
02-06 03:17:58.833: E/AndroidRuntime(5414): at android.os.Handler.handleCallback(Handler.java:615)
02-06 03:17:58.833: E/AndroidRuntime(5414): at android.os.Handler.dispatchMessage(Handler.java:92)
02-06 03:17:58.833: E/AndroidRuntime(5414): at android.os.Looper.loop(Looper.java:137)
02-06 03:17:58.833: E/AndroidRuntime(5414): at android.app.ActivityThread.main(ActivityThread.java:4745)
02-06 03:17:58.833: E/AndroidRuntime(5414): at java.lang.reflect.Method.invokeNative(Native Method)
02-06 03:17:58.833: E/AndroidRuntime(5414): at java.lang.reflect.Method.invoke(Method.java:511)
02-06 03:17:58.833: E/AndroidRuntime(5414): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
02-06 03:17:58.833: E/AndroidRuntime(5414): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
02-06 03:17:58.833: E/AndroidRuntime(5414): at dalvik.system.NativeStart.main(Native Method)
