在下拉列表後面設置SurfaceView

Question

我想喜歡SurfaceView必須出現在選項下拉列表[編輯尺寸等]後面。當我點擊Activity上的選項時，SurfaceView應出現在下拉列表後面。

請從下面的鏈接查看圖像，您將在其中找到surfaceview不出現在選項下拉列表後面的問題。你很容易理解這些問題。

請幫我，我該如何做到這一點。

在此先感謝

圖片：

佈局：

<?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="match_parent" 
    android:layout_gravity="center" 
    android:orientation="vertical" 
    android:weightSum="1" > 

    <FrameLayout 
    android:id="@+id/topLinearLayout" 
    android:layout_width="fill_parent" 
    android:layout_height="50dip" 
    android:background="@drawable/bar" > 

    <ImageView 
     android:id="@+id/new_quote_imageView" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:src="@drawable/new_quote_bar" /> 

    <TextView 
     android:id="@+id/new_quote" 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent" 
     android:layout_gravity="center" 
     android:gravity="center" 
     android:text="@string/new_quote" 
     android:textColor="@android:color/white" 
     android:textSize="18sp" /> 

    <TextView 
     android:id="@+id/optionsTextView" 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent" 
     android:layout_gravity="right" 
     android:layout_marginRight="15dip" 
     android:drawableRight="@drawable/icn_dropdown_open" 
     android:gravity="center" 
     android:text="@string/options" 
     android:textColor="@android:color/white" 
     android:textSize="18sp" /> 
    </FrameLayout> 

    <FrameLayout 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" > 

    <FrameLayout 
     android:id="@+id/topFrameLayout" 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent" > 

     <!-- ImageView for the product --> 
     <ImageView 
     android:id="@+id/photoImageView" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" /> 

     <com.amplimesh.renderer.RendererView 
     android:id="@+id/renderer_view" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:background="@android:color/transparent"/> 

    </FrameLayout> 

    <ScrollView 
     android:id="@+id/dropDownScrollView" 
     android:layout_width="300dip" 
     android:layout_height="wrap_content" 
     android:visibility="gone"> 

     <LinearLayout 
     android:id="@+id/dropDownList" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:background="@drawable/dropdown_background" 
     android:orientation="vertical" 
     android:paddingBottom="20dip" 
     android:paddingLeft="10dip" 
     android:paddingRight="10dip" 
     android:visibility="gone" > 

     <LinearLayout 
      android:id="@+id/editDimensionLayout" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_marginLeft="10dip" 
      android:layout_marginTop="10dip" 
      android:orientation="horizontal" 
      android:weightSum="1" > 

      <ImageView 
      android:id="@+id/leftImage" 
      android:layout_width="30dip" 
      android:layout_height="30dip" 
      android:background="@drawable/left_image_drop_down" /> 

      <TextView 
      android:id="@+id/dimensionTextView" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_marginLeft="10dip" 
      android:gravity="center_vertical" 
      android:text="@string/edit_dimension" 
      android:textColor="@android:color/black" 
      android:textSize="18sp" /> 
     </LinearLayout> 

     <LinearLayout 
      android:id="@+id/editDimensionValueLayout" 
      android:layout_width="match_parent" 
      android:layout_height="270dip" 
      android:layout_marginLeft="10dip" 
      android:layout_marginRight="10dip" 
      android:layout_marginTop="10dip" 
      android:background="@drawable/edit_dimension_layout" 
      android:orientation="vertical" 
      android:visibility="gone" > 

      <TextView 
      android:id="@+id/heightTextView" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_marginLeft="12dip" 
      android:layout_marginTop="10dip" 
      android:gravity="center_vertical" 
      android:text="@string/height" 
      android:textColor="@android:color/black" 
      android:textSize="16sp" /> 

      <LinearLayout 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:orientation="horizontal" > 

      <EditText 
       android:id="@+id/heightEditText" 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:layout_marginLeft="10dip" 
       android:layout_marginTop="10dip" 
       android:maxWidth="180dip" 
       android:minWidth="150dip" /> 

      <TextView 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:layout_marginLeft="10dip" 
       android:gravity="center" 
       android:text="@string/cm" 
       android:textColor="@android:color/black" 
       android:textSize="14sp" /> 
      </LinearLayout> 

      <TextView 
      android:id="@+id/widthTextView" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_marginLeft="12dip" 
      android:layout_marginTop="10dip" 
      android:gravity="center_vertical" 
      android:text="@string/width" 
      android:textColor="@android:color/black" 
      android:textSize="16sp" /> 

      <LinearLayout 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:orientation="horizontal" > 

      <EditText 
       android:id="@+id/widthEditText" 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:layout_marginLeft="10dip" 
       android:layout_marginTop="10dip" 
       android:maxWidth="180dip" 
       android:minWidth="150dip" /> 

      <TextView 
       android:layout_width="wrap_content" 
       android:layout_height="match_parent" 
       android:layout_marginLeft="10dip" 
       android:gravity="center" 
       android:text="@string/cm" 
       android:textColor="@android:color/black" 
       android:textSize="14sp" /> 
      </LinearLayout> 

      <Button 
      android:id="@+id/saveButton" 
      android:layout_width="100dip" 
      android:layout_height="45dip" 
      android:layout_gravity="center_horizontal" 
      android:layout_marginLeft="10dip" 
      android:layout_marginTop="10dip" 
      android:background="@drawable/button_background" 
      android:gravity="center" 
      android:text="@string/save" 
      android:textColor="@android:color/white" /> 
     </LinearLayout> 

     <LinearLayout 
      android:id="@+id/pickColorLayout" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_marginLeft="10dip" 
      android:layout_marginRight="10dip" 
      android:layout_marginTop="20dip" 
      android:orientation="horizontal" 
      android:weightSum="1" > 

      <ImageView 
      android:id="@+id/leftImage" 
      android:layout_width="30dip" 
      android:layout_height="30dip" 
      android:background="@drawable/left_image_drop_down" /> 

      <TextView 
      android:id="@+id/pickColorTextView" 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:layout_marginLeft="10dip" 
      android:gravity="center_vertical" 
      android:text="@string/pick_colour" 
      android:textColor="@android:color/black" 
      android:textSize="18sp" /> 
     </LinearLayout> 

     <RelativeLayout 
      android:id="@+id/pickColourValueLayout" 
      android:layout_width="match_parent" 
      android:layout_height="330dip" 
      android:layout_marginLeft="10dip" 
      android:layout_marginRight="10dip" 
      android:layout_marginTop="10dip" 
      android:background="@drawable/edit_dimension_layout" 
      android:visibility="gone" > 

      <ImageButton 
      android:id="@+id/firstColour" 
      android:layout_width="100dip" 
      android:layout_height="45dip" 
      android:layout_alignParentLeft="true" 
      android:layout_marginLeft="10dip" 
      android:layout_marginTop="10dip" 
      android:background="@drawable/first_colour" /> 

      <ImageButton 
      android:id="@+id/secondColour" 
      android:layout_width="100dip" 
      android:layout_height="45dip" 
      android:layout_alignParentRight="true" 
      android:layout_alignTop="@id/firstColour" 
      android:layout_marginRight="10dip" 
      android:background="@drawable/tenth_colour" /> 

      <ImageButton 
      android:id="@+id/thirdColour" 
      android:layout_width="100dip" 
      android:layout_height="45dip" 
      android:layout_alignLeft="@id/firstColour" 
      android:layout_below="@id/firstColour" 
      android:layout_marginTop="15dip" 
      android:background="@drawable/second_colour" /> 

      <ImageButton 
      android:id="@+id/fourthColour" 
      android:layout_width="100dip" 
      android:layout_height="45dip" 
      android:layout_alignParentRight="true" 
      android:layout_alignTop="@id/thirdColour" 
      android:layout_marginRight="10dip" 
      android:background="@drawable/ninth_colour" /> 

      <ImageButton 
      android:id="@+id/fifthColour" 
      android:layout_width="100dip" 
      android:layout_height="45dip" 
      android:layout_alignLeft="@id/firstColour" 
      android:layout_below="@id/thirdColour" 
      android:layout_marginTop="15dip" 
      android:background="@drawable/third_colour" /> 

      <ImageButton 
      android:id="@+id/sixthColour" 
      android:layout_width="100dip" 
      android:layout_height="45dip" 
      android:layout_alignParentRight="true" 
      android:layout_alignTop="@id/fifthColour" 
      android:layout_marginRight="10dip" 
      android:background="@drawable/eight_colour" /> 

      <ImageButton 
      android:id="@+id/seventhColour" 
      android:layout_width="100dip" 
      android:layout_height="45dip" 
      android:layout_alignLeft="@id/firstColour" 
      android:layout_below="@id/fifthColour" 
      android:layout_marginTop="15dip" 
      android:background="@drawable/fourth_colour" /> 

      <ImageButton 
      android:id="@+id/eightColour" 
      android:layout_width="100dip" 
      android:layout_height="45dip" 
      android:layout_alignParentRight="true" 
      android:layout_alignTop="@id/seventhColour" 
      android:layout_marginRight="10dip" 
      android:background="@drawable/seventh_colour" /> 

      <ImageButton 
      android:id="@+id/ninthColour" 
      android:layout_width="100dip" 
      android:layout_height="45dip" 
      android:layout_alignLeft="@id/firstColour" 
      android:layout_below="@id/seventhColour" 
      android:layout_marginTop="15dip" 
      android:background="@drawable/fifth_colour" /> 

      <ImageButton 
      android:id="@+id/tenthColour" 
      android:layout_width="100dip" 
      android:layout_height="45dip" 
      android:layout_alignParentRight="true" 
      android:layout_alignTop="@id/ninthColour" 
      android:layout_marginRight="10dip" 
      android:background="@drawable/sixth_colour" /> 
     </RelativeLayout> 

     <LinearLayout 
      android:id="@+id/addMeshLayout" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_marginLeft="10dip" 
      android:layout_marginRight="10dip" 
      android:layout_marginTop="20dip" 
      android:orientation="horizontal" 
      android:weightSum="1" > 

      <ImageView 
      android:id="@+id/leftImage" 
      android:layout_width="30dip" 
      android:layout_height="30dip" 
      android:background="@drawable/left_image_drop_down" /> 

      <TextView 
      android:id="@+id/pickColorTextView" 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:layout_marginLeft="10dip" 
      android:gravity="center_vertical" 
      android:text="@string/add_mesh" 
      android:textColor="@android:color/black" 
      android:textSize="18sp" /> 
     </LinearLayout> 

     <RelativeLayout 
      android:id="@+id/addMeshContentLayout" 
      android:layout_width="match_parent" 
      android:layout_height="200dip" 
      android:layout_marginLeft="10dip" 
      android:layout_marginRight="10dip" 
      android:layout_marginTop="10dip" 
      android:background="@drawable/edit_dimension_layout" 
      android:visibility="gone" > 

      <Button 
      android:id="@+id/firstAddButton" 
      android:layout_width="60dip" 
      android:layout_height="45dip" 
      android:layout_alignParentLeft="true" 
      android:layout_marginLeft="10dip" 
      android:layout_marginTop="10dip" 
      android:background="@drawable/add_button_background" 
      android:text="@string/add" 
      android:textColor="@android:color/white" /> 

      <TextView 
      android:id="@+id/securaMeshTextView" 
      android:layout_width="100dip" 
      android:layout_height="45dip" 
      android:layout_alignTop="@id/firstAddButton" 
      android:layout_marginLeft="15dip" 
      android:layout_marginRight="10dip" 
      android:layout_toRightOf="@id/firstAddButton" 
      android:gravity="center_vertical" 
      android:text="@string/securamesh" 
      android:textColor="@android:color/black" /> 

      <Button 
      android:id="@+id/secondAddButton" 
      android:layout_width="60dip" 
      android:layout_height="45dip" 
      android:layout_alignLeft="@id/firstAddButton" 
      android:layout_below="@id/firstAddButton" 
      android:layout_marginTop="15dip" 
      android:background="@drawable/add_button_background" 
      android:text="@string/add" 
      android:textColor="@android:color/white" /> 

      <TextView 
      android:id="@+id/supameshTextView" 
      android:layout_width="100dip" 
      android:layout_height="45dip" 
      android:layout_alignTop="@id/secondAddButton" 
      android:layout_marginLeft="15dip" 
      android:layout_marginRight="10dip" 
      android:layout_toRightOf="@id/secondAddButton" 
      android:gravity="center_vertical" 
      android:text="@string/supamesh" 
      android:textColor="@android:color/black" /> 

      <Button 
      android:id="@+id/removeButton" 
      android:layout_width="100dip" 
      android:layout_height="45dip" 
      android:layout_below="@id/secondAddButton" 
      android:layout_centerHorizontal="true" 
      android:layout_marginTop="15dip" 
      android:background="@drawable/button_background" 
      android:text="@string/remove" 
      android:textColor="@android:color/white" /> 
     </RelativeLayout> 
     </LinearLayout> 
    </ScrollView> 
    </FrameLayout> 

</LinearLayout> 

代碼：

package com.amplimesh.renderer; 

import java.nio.ByteBuffer; 
import java.nio.ByteOrder; 
import java.nio.FloatBuffer; 

import javax.microedition.khronos.egl.EGLConfig; 
import javax.microedition.khronos.opengles.GL10; 

import android.content.Context; 
import android.graphics.PixelFormat; 
import android.opengl.GLSurfaceView; 
import android.opengl.GLU; 
import android.util.AttributeSet; 
import android.util.Log; 
import android.view.GestureDetector; 
import android.view.MotionEvent; 

import com.amplimesh.AddProductsActivity; 
import com.amplimesh.models.ObjModel; 
import com.amplimesh.util.MathHelper; 
import com.amplimesh.util.Point3; 


public class RendererView extends GLSurfaceView { 

    public static final int GRID_SIZE=8; 

    private Context mContext; 
    private Renderer mRenderer; 
    private TouchHelper mTouchHelper; 

    float mViewWidth, mViewHeight; 

    ObjModel mModel; 
    Point3 mOrigin; 
    Point3 mRotate; 
    Point3 mCamera; 

    FloatBuffer mGrid; 
    int mGridSize; 

    public static String objName = ""; 
    public static String textureFileName = ""; 

    public RendererView(Context context) { 
     this(context,null); 
    } 

    public RendererView(Context context, AttributeSet attrs) { 
     super(context,attrs); 
     mContext = context; 

     try{ 
      mModel = ObjModel.loadFromStream(mContext.getAssets().open(objName), textureFileName); 
     } catch (java.io.IOException e) { 
      Log.v("DemoRendererView", "loading model: "+e); 
     } 

     mOrigin = new Point3(0f,0f,0f); 
     mRotate = new Point3(0f,0f,0f); 
     mCamera = new Point3(0f,3f,3.9f); 

     mTouchHelper = new TouchHelper(context); 

    } 

    public void start() { 
     mRenderer = new Renderer(); 
     setEGLContextClientVersion(1); 
     setRenderer(mRenderer); 
    } 

    @Override 
    public boolean onTouchEvent(MotionEvent ev) { 
     return mTouchHelper.onTouchEvent(ev); 
    } 

    private void drag_xy(float dx, float dy) { 
     mOrigin.x += (dx/mViewWidth)*mGridSize; 
     mOrigin.y -= (dy/mViewHeight)*mGridSize; 
     float half = mGridSize/2; 
     mOrigin.minmax(-half+.5f,-half+.5f,-half+.5f,half-.5f,half-.5f,half-.5f); 
    } 

    private void drag_xz(float dx, float dy) { 
     mOrigin.x += (dx/mViewWidth)*mGridSize; 
     mOrigin.z += (dy/mViewHeight)*mGridSize; 
     float half = mGridSize/2; 
     mOrigin.minmax(-half+.5f,-half+.5f,-half+.5f,half-.5f,half-.5f,half-.5f); 
    } 

    private class TouchHelper extends GestureDetector.SimpleOnGestureListener { 
     GestureDetector gesture; 
     int ptr1_id=-1, ptr2_id=-1; 
     float last_x=-1, last_y=-1; 

     public TouchHelper(Context context) { 
      gesture = new GestureDetector(context, this); 
     } 

     @Override 
     public boolean onDoubleTap(MotionEvent ev) { 
      if (mRotationFinal != -1) 
       return true; 

      int index = ev.getActionIndex(); 
      float x = ev.getX(index); 
      float y = ev.getY(index); 

      int col = (int)(x/mViewWidth * 3); 
      int row = (int)(y/mViewHeight * 3); 

      Log.v("ObjDem", "col,row:"+col+","+row); 


      if (col == 0 && row == 0) { 
       mRotationAxis = Z_AXIS; 
       mRotationFinal = mRotate.z + 90; 
       mRotationDelta = 1; 
      } 
      else 
       if (col == 0 && row == 1) { 
        mRotationAxis = Y_AXIS; 
        mRotationFinal = mRotate.y - 90; 
        mRotationDelta = -1; 
       } 
       else 
        if (col == 1 && row == 0) { 
         mRotationAxis = X_AXIS; 
         mRotationFinal = mRotate.x - 90; 
         mRotationDelta = -1; 
        } 
        else 
         if (col == 1 && row == 2) { 
          mRotationAxis = X_AXIS; 
          mRotationFinal = mRotate.x + 90; 
          mRotationDelta = 1; 
         } 
         else 
          if (col == 2 && row == 1) { 
           mRotationAxis = Y_AXIS; 
           mRotationFinal = mRotate.y + 90; 
           mRotationDelta = 1; 
          } 
          else 
           if (col == 2 && row == 2) { 
            mRotationAxis = Z_AXIS; 
            mRotationFinal = mRotate.z - 90; 
            mRotationDelta = -1; 
           } 
      return true; 
     } 

     @Override 
     public boolean onFling(MotionEvent e1, MotionEvent e2, float vel_x, float vel_y) { 
      float angle = MathHelper.angle_of_vector(vel_x, vel_y); 
      Log.v("ObjDemo", "vel: "+vel_x+","+vel_y+" = "+angle); 
      return true; 
     } 

     public boolean onTouchEvent(MotionEvent ev) { 

      if(AddProductsActivity.optionFlag) { 
       return false; 
      } 

      if (gesture.onTouchEvent(ev)) { 
       ptr1_id = -1; 
       ptr2_id = -1; 
       last_x = -1f; 
       last_y = -1f; 
       return true; 
      } 

      int action = ev.getActionMasked(); 
      int index = ev.getActionIndex(); 
      int id = ev.getPointerId(index); 
      int count = ev.getPointerCount(); 

      switch (action) { 
       case MotionEvent.ACTION_DOWN: 
        ptr1_id = id; 
        break; 

       case MotionEvent.ACTION_POINTER_DOWN: 
        ptr2_id = id; 
        break; 

       case MotionEvent.ACTION_POINTER_UP: 
        ptr2_id = -1; 
        break; 

       case MotionEvent.ACTION_UP: 
        ptr1_id = -1; 
        last_x = -1; 
        last_y = -1; 
        break; 

       case MotionEvent.ACTION_MOVE: 

        float x,y; 

        if (count >= 2) { 
         x = ev.getX(index); 
         y = ev.getY(index); 

         if (last_x != -1) 
          drag_xz(x - last_x, y - last_y); 
        } 
        else { 
         x = ev.getX(index); 
         y = ev.getY(index); 

         if (last_x != -1) 
          drag_xy(x - last_x, y - last_y); 
        } 

        last_x = x; 
        last_y = y; 
        break; 
      } 
      return true; 
     } 

    } 

    public final static int NONE=-1; 
    public final static int X_AXIS=0; 
    public final static int Y_AXIS=1; 
    public final static int Z_AXIS=2; 

    float mRotationFinal=-1f; 
    float mRotationDelta=0f; 
    int mRotationAxis=-1; 

    private void tick() { 
     if (mRotationFinal != -1) { 
      float close = Math.abs(mRotationDelta*2); 
      switch (mRotationAxis) { 
       case X_AXIS: 
        mRotate.x += mRotationDelta; 
        if (Math.abs(mRotationFinal - mRotate.x) <= close) { 
         mRotate.x = mRotationFinal; 
         mRotationFinal=-1; 
        } 
        break; 
       case Y_AXIS: 
        mRotate.y += mRotationDelta; 
        if (Math.abs(mRotationFinal - mRotate.y) <= close) { 
         mRotate.y = mRotationFinal; 
         mRotationFinal=-1; 
        } 
        break; 
       case Z_AXIS: 
        mRotate.z += mRotationDelta; 
        if (Math.abs(mRotationFinal - mRotate.z) <= close) { 
         mRotate.z = mRotationFinal; 
         mRotationFinal=-1; 
        } 
       break; 
      } 
      //mRotate.minmax(-360,-360,-360, 360,360,360); 
     } 

    } 

    private class Renderer implements GLSurfaceView.Renderer { 
     public Renderer() { 
      setAlpha(0); 
      setZOrderOnTop(false); 
     } 

     public void onSurfaceCreated(GL10 gl, EGLConfig config) 
     { 
      gl.glClearColor(0f,0f,0f, 0.5f); 
      gl.glEnable(GL10.GL_DEPTH_TEST); 
      gl.glDepthFunc(GL10.GL_LEQUAL); 
      gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT, GL10.GL_NICEST); 

      gl.glEnable(GL10.GL_TEXTURE_2D); 
      gl.glShadeModel(GL10.GL_SMOOTH); 

      build_grid(GRID_SIZE); 

      if(mModel != null) 
       mModel.bindTextures(mContext, gl); 
     } 

     public void onSurfaceChanged(GL10 gl, int w, int h) { 
      mViewWidth = (float)w; 
      mViewHeight = (float)h; 
      gl.glViewport(0,0,w,h); 

      gl.glMatrixMode(GL10.GL_PROJECTION); 
      gl.glLoadIdentity(); 
      GLU.gluPerspective(gl, 60.0f, mViewWidth/mViewHeight, 0.1f, 100f); 

      gl.glMatrixMode(GL10.GL_MODELVIEW); 
      gl.glLoadIdentity(); 
     } 

     public void onDrawFrame(GL10 gl) { 
      tick(); 
      gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT); 
      gl.glPushMatrix(); 

      //position camera 
      GLU.gluLookAt(gl, mCamera.x,mCamera.y,mCamera.z, mOrigin.x,mOrigin.y,mOrigin.z, 0f,1f,0f); 

      //draw_grid 
      draw_grid(gl); 

      //draw_model 
      gl.glPushMatrix(); 

      gl.glTranslatef(mOrigin.x, mOrigin.y, 2); 
      gl.glRotatef(mRotate.x, 1f, 0f, 0f); 
      gl.glRotatef(mRotate.y, 0f, 1f, 0f); 
      gl.glRotatef(mRotate.z, 0f, 0f, 1f); 
      mModel.draw(gl); 
      gl.glPopMatrix(); 
      gl.glPopMatrix(); 
     } 


     private void build_grid(int GRID_SIZE) { 
      float i; 
      float half = GRID_SIZE/2f; 
      mGridSize = GRID_SIZE; 

      ByteBuffer tBuf = ByteBuffer.allocateDirect((GRID_SIZE+1)*12*3 * 4); 
      tBuf.order(ByteOrder.nativeOrder()); 
      mGrid = tBuf.asFloatBuffer(); 

      for (i=-half; i <= +half; i++) { 
       mGrid.put(i); mGrid.put(-half); mGrid.put(+half); 
       mGrid.put(i); mGrid.put(-half); mGrid.put(-half); 
       mGrid.put(i); mGrid.put(+half); mGrid.put(-half); 
       mGrid.put(i); mGrid.put(+half); mGrid.put(+half); 

       mGrid.put(-half); mGrid.put(i); mGrid.put(+half); 
       mGrid.put(-half); mGrid.put(i); mGrid.put(-half); 
       mGrid.put(+half); mGrid.put(i); mGrid.put(-half); 
       mGrid.put(+half); mGrid.put(i); mGrid.put(+half); 

       mGrid.put(-half); mGrid.put(+half); mGrid.put(i); 
       mGrid.put(-half); mGrid.put(-half); mGrid.put(i); 
       mGrid.put(+half); mGrid.put(-half); mGrid.put(i); 
       mGrid.put(+half); mGrid.put(+half); mGrid.put(i); 
      } 
      mGrid.rewind(); 
     } 

     public void draw_grid(GL10 gl) { 
      gl.glPushMatrix(); 
      int ofs=0; 
      int i; 
      gl.glDisableClientState(GL10.GL_TEXTURE_COORD_ARRAY); 
      gl.glVertexPointer(3, GL10.GL_FLOAT, 0, mGrid); 
      for (i=0; i <= mGridSize*3; i++) 
      { 
       gl.glDrawArrays(GL10.GL_LINE_LOOP, ofs, 4); 
       ofs+=4; 
      } 
      gl.glPopMatrix(); 
     } 
    } 
} 

package com.amplimesh.models; 

import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStream; 
import java.io.InputStreamReader; 
import java.nio.ByteBuffer; 
import java.nio.ByteOrder; 
import java.nio.FloatBuffer; 
import java.util.ArrayList; 
import java.util.StringTokenizer; 

import javax.microedition.khronos.opengles.GL10; 

import android.content.Context; 
import android.graphics.Bitmap; 
import android.graphics.BitmapFactory; 
import android.opengl.GLUtils; 
import android.util.Log; 

import com.amplimesh.util.Point3; 

public class ObjModel { 

    public void bindTextures(Context context, GL10 gl) { 
     Bitmap bitmap; 
     try { 
      InputStream is = context.getAssets().open("textures/"+mTextureName); 
      bitmap = BitmapFactory.decodeStream(is); 
      if (bitmap == null) { 
       Log.v("ObjModel", "err loading bitmap!"); 
      } 
     } catch (java.io.IOException e) { 
      Log.v("ObjModel", "err loading tex: "+e.toString()); 
      return; 
     } 

     mTextures = new int[1]; 
     gl.glGenTextures(1, mTextures, 0); 
     gl.glBindTexture(GL10.GL_TEXTURE_2D, mTextures[0]); 
     gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR); 
     gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR); 
     gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_S, GL10.GL_CLAMP_TO_EDGE); 
     gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_T, GL10.GL_CLAMP_TO_EDGE); 
     GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, bitmap, 0); 
     bitmap.recycle(); 
    } 

    public void draw(GL10 gl) { 
     gl.glEnableClientState(GL10.GL_VERTEX_ARRAY); 
     gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY); 
     for (Model model : mModels) { 

      gl.glVertexPointer(3, GL10.GL_FLOAT, 0, model.v); 
      if (model.vt != null && mTextures != null) { 
       gl.glBindTexture(GL10.GL_TEXTURE_2D, mTextures[0]); 
       gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, model.vt); 
      } 

      if (model.vn != null) { 
       gl.glNormalPointer(GL10.GL_FLOAT, 0, model.vn); 
      } 
      gl.glDrawArrays(GL10.GL_TRIANGLES, 0, model.v_size); 

     } 

     gl.glDisableClientState(GL10.GL_VERTEX_ARRAY); 
     gl.glDisableClientState(GL10.GL_TEXTURE_COORD_ARRAY); 
    } 

    public static ObjModel loadFromStream(InputStream is, String texture_name) throws IOException { 
     ObjModel obj = ObjLoader.loadFromStream(is); 
     obj.mTextureName = texture_name; 
     return obj; 
    } 

    private Model mModels[]; 
    private int mTextures[]; 
    private String mTextureName; 


} 

Answer 1

在你的代碼SETZ OrderOnTop（真）;我認爲這說明了一切，它會導致矩形畫在上面，這就是爲什麼你看到的那樣，你應該設置爲false

setZOrderOnTop(false); 

，並在你的代碼應該聲明你的選項下拉列表，然後調用此

... 
yourDropDownView.bringToFront();