关于OnResume的问题，求解答!

Question

在另一个activity之中选择选项，获取boolean值，返回mainactivity后调用onResume，在onResume中用获取的boolean判断应该变成那种功能（两个功能在一个acivity里写的 重力感应和非重力感应）但是发现在默认功能没有问题。 但是选择另一种模式的时候，两种功能的函数都被调用了，就还留在默认模式下，求解决！

主要代码如下：
public class MainActivity extends AppCompatActivity {
private TextView textView;
MyView mAnimView = null;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
        LinearLayout root = (LinearLayout) findViewById(R.id.root);
        final DrawView draw = new DrawView(this);
        draw.setMinimumWidth(300);
        draw.setMinimumHeight(500);
        root.addView(draw);
}


@Override
public void onResume(){
    SharedPreferences modle = getSharedPreferences("MODEL", Context.MODE_PRIVATE);
    boolean x = modle.getBoolean("model",true);
    Log.v("现在的boolean为：","      "+x);
    if(x==false){
        LinearLayout root = (LinearLayout) findViewById(R.id.root);
        Log.v("执行了1：","      "+x);
        final MyView mAnimView = new MyView(this);
        root.addView(mAnimView);
    }
    else{

       LinearLayout root = (LinearLayout) findViewById(R.id.root);
        final DrawView draw = new DrawView(this);
        draw.setMinimumWidth(300);
        draw.setMinimumHeight(500);
        root.addView(draw);
        Log.v("执行了2","      "+x);
    }
    super.onResume();
}

Answer 1

http://tieba.baidu.com/p/2928261429