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framelayout 오류 (프로세스 종료)

0 추천
//mainActivity.java
 
  
 
package com.example.framelayout;
 
  
 
import android.os.Bundle;
 
import android.support.v7.app.ActionBarActivity;
 
import android.view.Menu;
 
import android.view.MenuItem;
 
import android.view.View;
 
import android.view.View.OnClickListener;
 
import android.widget.Button;
 
import android.widget.ImageView;
 
  
 
public class MainActivity extends ActionBarActivity {
 
    boolean selected = true;
 
    ImageView iv1 = (ImageView)findViewById(R.id.img1);
 
    ImageView iv2 = (ImageView)findViewById(R.id.img2);
 
    @Override
 
    public void onCreate(Bundle savedInstanceState) {
 
        super.onCreate(savedInstanceState);
 
        setContentView(R.layout.activity_main);
 
         
 
        Button button1 = (Button)findViewById(R.id.button1);
 
         
 
         
 
         
 
        button1.setOnClickListener(new OnClickListener(){
 
              
 
            public void onClick(View v){
 
                changed();
 
            }
 
        });
 
    }
 
  
 
     
 
    private void changed(){
 
        if(selected){
 
            iv1.setVisibility(View.INVISIBLE);
 
            iv2.setVisibility(View.VISIBLE);
 
             
 
             
 
        }else{
 
            iv1.setVisibility(View.VISIBLE);
 
            iv2.setVisibility(View.INVISIBLE);
 
             
 
        }
 
         
 
        selected=!selected;
 
         
 
    }
 
     
 
    @Override
 
    public boolean onCreateOptionsMenu(Menu menu) {
 
        // Inflate the menu; this adds items to the action bar if it is present.
 
        getMenuInflater().inflate(R.menu.main, menu);
 
        return true;
 
    }
 
  
 
    @Override
 
    public boolean onOptionsItemSelected(MenuItem item) {
 
        // Handle action bar item clicks here. The action bar will
 
        // automatically handle clicks on the Home/Up button, so long
 
        // as you specify a parent activity in AndroidManifest.xml.
 
        int id = item.getItemId();
 
        if (id == R.id.action_settings) {
 
            return true;
 
        }
 
        return super.onOptionsItemSelected(item);
 
    }
 
}
 
logcat
01-23 07:42:54.508: D/szipinf(5856): Initializing inflate state
01-23 07:42:54.518: D/AndroidRuntime(5856): Shutting down VM
01-23 07:42:54.518: W/dalvikvm(5856): threadid=1: thread exiting with uncaught exception (group=0x40015560)
01-23 07:42:54.528: E/AndroidRuntime(5856): FATAL EXCEPTION: main
01-23 07:42:54.528: E/AndroidRuntime(5856): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.framelayout/com.example.framelayout.MainActivity}: java.lang.NullPointerException
01-23 07:42:54.528: E/AndroidRuntime(5856):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1680)
01-23 07:42:54.528: E/AndroidRuntime(5856):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1784)
01-23 07:42:54.528: E/AndroidRuntime(5856):  at android.app.ActivityThread.access$1500(ActivityThread.java:123)
01-23 07:42:54.528: E/AndroidRuntime(5856):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:939)
01-23 07:42:54.528: E/AndroidRuntime(5856):  at android.os.Handler.dispatchMessage(Handler.java:99)
01-23 07:42:54.528: E/AndroidRuntime(5856):  at android.os.Looper.loop(Looper.java:130)
01-23 07:42:54.528: E/AndroidRuntime(5856):  at android.app.ActivityThread.main(ActivityThread.java:3835)
01-23 07:42:54.528: E/AndroidRuntime(5856):  at java.lang.reflect.Method.invokeNative(Native Method)
01-23 07:42:54.528: E/AndroidRuntime(5856):  at java.lang.reflect.Method.invoke(Method.java:507)
01-23 07:42:54.528: E/AndroidRuntime(5856):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:864)
01-23 07:42:54.528: E/AndroidRuntime(5856):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622)
01-23 07:42:54.528: E/AndroidRuntime(5856):  at dalvik.system.NativeStart.main(Native Method)
01-23 07:42:54.528: E/AndroidRuntime(5856): Caused by: java.lang.NullPointerException
01-23 07:42:54.528: E/AndroidRuntime(5856):  at android.app.Activity.findViewById(Activity.java:1647)
01-23 07:42:54.528: E/AndroidRuntime(5856):  at com.example.framelayout.MainActivity.<init>(MainActivity.java:14)
01-23 07:42:54.528: E/AndroidRuntime(5856):  at java.lang.Class.newInstanceImpl(Native Method)
01-23 07:42:54.528: E/AndroidRuntime(5856):  at java.lang.Class.newInstance(Class.java:1409)
01-23 07:42:54.528: E/AndroidRuntime(5856):  at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
01-23 07:42:54.528: E/AndroidRuntime(5856):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1672)
01-23 07:42:54.528: E/AndroidRuntime(5856):  ... 11 more

오류도 안뜨고 이상 없는거 같은데 계속 프로세스 종료가 뜨면서 어플이 종료되네요 ㅠㅠ

로그켓은 뭔말인지 모르겠네요 ㅠㅠ

 

 

 

익명사용자 님이 2015년 1월 23일 질문
@Override
 public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
 
ImageView iv1 = (ImageView)findViewById(R.id.img1);
 
    ImageView iv2 = (ImageView)findViewById(R.id.img2);

1개의 답변

+1 추천
 
채택된 답변
iv1이랑 iv2 초기화하는 코드를 onCreate에서 button1 초기화한 코드 밑으로 이동시키세용~
Gradler (109,780 포인트) 님이 2015년 1월 23일 답변
아!! 감사합니다~!!!!
...