如何確定viewflipper的當前視圖？

Question

我有四個imageview視圖鰭狀肢，相機中捕獲的圖像設置爲每個imageview。使用showNext（）方法查看viewflipper中的所有子項。我必須獲取viewflipper的當前視圖並設置當前圖像視圖的壁紙。

下面是我用來獲取當前視圖並設置爲壁紙的代碼。

package com.example.websamples; 
import java.io.IOException; 
import java.util.ArrayList; 
import android.app.Activity; 
import android.app.WallpaperManager; 
import android.content.Intent; 
import android.graphics.Bitmap; 
import android.os.Bundle; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.ImageButton; 
import android.widget.ImageView; 
import android.widget.ViewFlipper; 

public class Photo extends Activity implements OnClickListener { 
    ViewFlipper vfImageViews; 
    ImageView ivCapture1, ivCapture2, ivCapture3, ivCapture4; 
    ImageButton ibCamera; 
    Button bSetWall; 
    final int cameraData = 0; 
    Bitmap bmpImageView0, bmpImageView1, bmpImageView2, bmpImageView3; 
    int iSetWallpaper; 
    int iStatus = 1; 
    ArrayList<Bitmap> bitmapArray = new ArrayList<Bitmap>(); 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.photo); 
     ivCapture1 = (ImageView) findViewById(R.id.ivCapture1); 
     ivCapture2 = (ImageView) findViewById(R.id.ivCapture2); 
     ivCapture3 = (ImageView) findViewById(R.id.ivCapture3); 
     ivCapture4 = (ImageView) findViewById(R.id.ivCapture4); 
     ibCamera = (ImageButton) findViewById(R.id.ibCamera); 
     bSetWall = (Button) findViewById(R.id.bSetWall); 
     vfImageViews = (ViewFlipper) findViewById(R.id.vfImageViews); 
     ibCamera.setOnClickListener(this); 
     bSetWall.setOnClickListener(this); 
     vfImageViews.setOnClickListener(this); 
     // vfImageViews.setFlipInterval(5000); 
     // vfImageViews.startFlipping(); 
    } 
    @Override 
    public void onClick(View view) { 
     switch (view.getId()) { 
     case R.id.vfImageViews: 
      vfImageViews.showNext(); 
      break; 
     case R.id.ibCamera: 
      Intent cameraIntent = new Intent(
        android.provider.MediaStore.ACTION_IMAGE_CAPTURE); 
      startActivityForResult(cameraIntent, cameraData); 
      break; 
     case R.id.bSetWall: 
      try { 
       iSetWallpaper = vfImageViews.indexOfChild(vfImageViews 
         .getCurrentView()); 
       // WallpaperManager myWallpaperManager = 
       // WallpaperManager.getInstance(getApplicationContext()); 
       // myWallpaperManager.setResource(iSetWallpaper); 
       getApplicationContext().setWallpaper(
         bitmapArray.get(iSetWallpaper)); 
      } catch (IOException e) { 
       e.printStackTrace(); 
      } 
      break; 
     } 
    } 
    @Override 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
     super.onActivityResult(requestCode, resultCode, data); 
     if (resultCode == RESULT_OK) { 
      if (requestCode == cameraData) { 
       Bundle extras = data.getExtras(); 
       if (iStatus == 1) { 
        bmpImageView0 = (Bitmap) extras.get("data"); 
        bitmapArray.add(bmpImageView0); 
        ivCapture1.setImageBitmap(bmpImageView0); 
        vfImageViews.setDisplayedChild(vfImageViews 
          .indexOfChild(findViewById(R.id.ivCapture1))); 
        iStatus++; 
       } else if (iStatus == 2) { 
        bmpImageView1 = (Bitmap) extras.get("data"); 
        bitmapArray.add(bmpImageView1); 
        ivCapture2.setImageBitmap(bmpImageView1); 
        vfImageViews.setDisplayedChild(vfImageViews 
          .indexOfChild(findViewById(R.id.ivCapture2))); 
        iStatus++; 
       } else if (iStatus == 3) { 
        bmpImageView2 = (Bitmap) extras.get("data"); 
        bitmapArray.add(bmpImageView2); 
        ivCapture3.setImageBitmap(bmpImageView2); 
        vfImageViews.setDisplayedChild(vfImageViews 
          .indexOfChild(findViewById(R.id.ivCapture3))); 
        iStatus++; 
       } else if (iStatus == 4) { 
        bmpImageView3 = (Bitmap) extras.get("data"); 
        bitmapArray.add(bmpImageView3); 
        ivCapture4.setImageBitmap(bmpImageView3); 
        vfImageViews.setDisplayedChild(vfImageViews 
          .indexOfChild(findViewById(R.id.ivCapture4))); 
        iStatus = 1; 
       } 
      } 
     } 
    } 
} 

我的申請力停止這裏 iSetWallpaper = vfImageViews.indexOfChild（vfImageViews.getCurrentView（））;

請更正代碼出錯的地方。

Answer 1

您可以使用此

flipper.setDisplayedChild(8); 

設置子值，你可以檢索值

flipper.getDisplayedChild();