关于findViewById返回空指针的错误

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protected void onCreate(Bundle savedInstanceState) {

Log.v("GameWindow", "onCreate");

super.onCreate(savedInstanceState);
setContentView(R.layout.gameview);

//LayoutInflater inflater = (LayoutInflater)getSystemService(LAYOUT_INFLATER_SERVICE);     
//View layout = inflater.inflate(R.layout.gameview,null);

//gameView = (GameView) view.findViewById(R.id.game_sudo_view);

gameView = (GameView) findViewById(R.id.game_sudo_view);
if(gameView == null){
Log.v("gameView", "onCreate->null");
}

levelTextView = (TextView)findViewById(R.id.leveltextview);
levelTextView.setText("Topic."+1));

if(levelTextView == null){
Log.v("TextView", "onCreate->null");
}
}

<?xml version="1.0" encoding="utf-8" ?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@drawable/back">
    
    <ImageView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:contentDescription="@string/app_name"
    android:src="@drawable/grass" />
    
    <com.ljx.gameview.GameView
        android:id="@+id/game_sudo_view"
        android:layout_centerInParent="true"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"/>
    
    <TextView
        android:layout_centerHorizontal="true" 
        android:layout_above="@id/game_sudo_view"
        android:id="@+id/leveltextview"
        android:layout_marginTop="10dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>
    
</RelativeLayout>

关于findViewById返回空指针的错误

标签：des   android   blog   http   io   ar   java   文件   sp   

原文地址：http://www.cnblogs.com/lengyanyue39/p/4001956.html