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Android imageview/addview outofmemory幫助？

2011-03-18 56 views
0


我正在開發一個簡單的漫畫書類型的應用程序。
我在創建Android應用程序方面比較新，所以請幫助我。
我編碼的方式可能是這樣做的錯誤方式，但我希望能夠用左手和右手在屏幕上向前或向後翻頁。我遇到的問題是，大約80-85圖片後，應用程序將不再運行，我猜是由於內存不足？非常感激任何的幫助！ 謝謝 （即是做什麼的，我認爲部分是，我使用：Android imageview/addview outofmemory幫助？

viewFlipper = new ViewFlipper(this); 
ImageView i1 = new ImageView(this); 
i1.setImageResource(R.drawable.s1); 
viewFlipper.addView(i1);

和我在我的資源/文件夾繪製的120幅圖像...我做錯了什麼

import android.app.Activity; 
import android.content.Intent; 
import android.net.Uri; 
import android.os.Bundle; 
import android.view.GestureDetector; 
import android.view.GestureDetector.SimpleOnGestureListener; 
import android.view.Menu; 
import android.view.MenuInflater; 
import android.view.MenuItem; 
import android.view.MotionEvent; 
import android.view.View; 
import android.view.animation.Animation; 
import android.view.animation.AnimationUtils; 
import android.widget.ImageView; 
import android.widget.ViewFlipper; 

     private static final int SWIPE_MIN_DISTANCE = 120; 
     private static final int SWIPE_MAX_OFF_PATH = 250; 
     private static final int SWIPE_THRESHOLD_VELOCITY = 200; 
     private GestureDetector gestureDetector; 
     View.OnTouchListener gestureListener; 

     private Animation slideLeftIn; 
     private Animation slideLeftOut; 
     private Animation slideRightIn; 
     private Animation slideRightOut; 
     private ViewFlipper viewFlipper; 

    @Override 
     public void onCreate(Bundle savedInstanceState) { 

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

      viewFlipper = new ViewFlipper(this); 
      ImageView i1 = new ImageView(this); 
      i1.setImageResource(R.drawable.s1); 
      ImageView i2 = new ImageView(this); 
      i2.setImageResource(R.drawable.s2); 
      ImageView i3 = new ImageView(this); 
      i3.setImageResource(R.drawable.s3); 
      ImageView i4 = new ImageView(this); 
      i4.setImageResource(R.drawable.s4); 
      ImageView i5 = new ImageView(this); 
      i5.setImageResource(R.drawable.s5); 
      ImageView i6 = new ImageView(this); 
      i6.setImageResource(R.drawable.s6); 
      ImageView i7 = new ImageView(this); 
      i7.setImageResource(R.drawable.s7); 
      ImageView i8 = new ImageView(this); 
      i8.setImageResource(R.drawable.s8); 
      ImageView i9 = new ImageView(this); 
      i9.setImageResource(R.drawable.s9); 
      ImageView i10 = new ImageView(this); 
      i10.setImageResource(R.drawable.s10); 
      ImageView i11 = new ImageView(this); 
      i11.setImageResource(R.drawable.s11); 
      ImageView i12 = new ImageView(this); 
      i12.setImageResource(R.drawable.s12); 
      ImageView i13 = new ImageView(this); 
      i13.setImageResource(R.drawable.s13); 
      ImageView i14 = new ImageView(this); 
      i14.setImageResource(R.drawable.s14); 
      ImageView i15 = new ImageView(this); 
      i15.setImageResource(R.drawable.s15); 
      ImageView i16 = new ImageView(this); 
      i16.setImageResource(R.drawable.s16); 
      ImageView i17 = new ImageView(this); 
      i17.setImageResource(R.drawable.s17); 
      ImageView i18 = new ImageView(this); 
      i18.setImageResource(R.drawable.s18); 
      ImageView i19 = new ImageView(this); 
      i19.setImageResource(R.drawable.s19); 
      ImageView i20 = new ImageView(this); 
      i20.setImageResource(R.drawable.s20); 
      ImageView i21 = new ImageView(this); 
      i21.setImageResource(R.drawable.s21); 
      ImageView i22 = new ImageView(this); 
      i22.setImageResource(R.drawable.s22); 
      ImageView i23 = new ImageView(this); 
      i23.setImageResource(R.drawable.s23); 
      ImageView i24 = new ImageView(this); 
      i24.setImageResource(R.drawable.s24); 
      ImageView i25 = new ImageView(this); 
      i25.setImageResource(R.drawable.s25); 
      ImageView i26 = new ImageView(this); 
      i26.setImageResource(R.drawable.s26); 
      ImageView i27 = new ImageView(this); 
      i27.setImageResource(R.drawable.s27); 
      ImageView i28 = new ImageView(this); 
      i28.setImageResource(R.drawable.s28); 
      ImageView i29 = new ImageView(this); 
      i29.setImageResource(R.drawable.s29); 
      ImageView i30 = new ImageView(this); 
      i30.setImageResource(R.drawable.s30); 
      ImageView i31 = new ImageView(this); 
      i31.setImageResource(R.drawable.s31); 
      ImageView i32 = new ImageView(this); 
      i32.setImageResource(R.drawable.s32); 
      ImageView i33 = new ImageView(this); 
      i33.setImageResource(R.drawable.s33); 
      ImageView i34 = new ImageView(this); 
      i34.setImageResource(R.drawable.s34); 
      ImageView i35 = new ImageView(this); 
      i35.setImageResource(R.drawable.s35); 
      ImageView i36 = new ImageView(this); 
      i36.setImageResource(R.drawable.s36); 
      ImageView i37 = new ImageView(this); 
      i37.setImageResource(R.drawable.s37); 
      ImageView i38 = new ImageView(this); 
      i38.setImageResource(R.drawable.s38); 
      ImageView i39 = new ImageView(this); 
      i39.setImageResource(R.drawable.s39); 
      ImageView i40 = new ImageView(this); 
      i40.setImageResource(R.drawable.s40); 
      ImageView i41 = new ImageView(this); 
      i41.setImageResource(R.drawable.s41); 
      ImageView i42 = new ImageView(this); 
      i42.setImageResource(R.drawable.s42); 
      ImageView i43 = new ImageView(this); 
      i43.setImageResource(R.drawable.s43); 
      ImageView i44 = new ImageView(this); 
      i44.setImageResource(R.drawable.s44); 
      ImageView i45 = new ImageView(this); 
      i45.setImageResource(R.drawable.s45); 
      ImageView i46 = new ImageView(this); 
      i46.setImageResource(R.drawable.s46); 
      ImageView i47 = new ImageView(this); 
      i47.setImageResource(R.drawable.s47); 
      ImageView i48 = new ImageView(this); 
      i48.setImageResource(R.drawable.s48); 
      ImageView i49 = new ImageView(this); 
      i49.setImageResource(R.drawable.s49); 
      ImageView i50 = new ImageView(this); 
      i50.setImageResource(R.drawable.s50); 
      ImageView i51 = new ImageView(this); 
      i51.setImageResource(R.drawable.s51); 
      ImageView i52 = new ImageView(this); 
      i52.setImageResource(R.drawable.s52); 
      ImageView i53 = new ImageView(this); 
      i53.setImageResource(R.drawable.s53); 
      ImageView i54 = new ImageView(this); 
      i54.setImageResource(R.drawable.s54); 
      ImageView i55 = new ImageView(this); 
      i55.setImageResource(R.drawable.s55); 
      ImageView i56 = new ImageView(this); 
      i56.setImageResource(R.drawable.s56); 
      ImageView i57 = new ImageView(this); 
      i57.setImageResource(R.drawable.s57); 
      ImageView i58 = new ImageView(this); 
      i58.setImageResource(R.drawable.s58); 
      ImageView i59 = new ImageView(this); 
      i59.setImageResource(R.drawable.s59); 
      ImageView i60 = new ImageView(this); 
      i60.setImageResource(R.drawable.s60); 
      ImageView i61 = new ImageView(this); 
      i61.setImageResource(R.drawable.s61); 
      ImageView i62 = new ImageView(this); 
      i62.setImageResource(R.drawable.s62); 
      ImageView i63 = new ImageView(this); 
      i63.setImageResource(R.drawable.s63); 
      ImageView i64 = new ImageView(this); 
      i64.setImageResource(R.drawable.s64); 
      ImageView i65 = new ImageView(this); 
      i65.setImageResource(R.drawable.s65); 
      ImageView i66 = new ImageView(this); 
      i66.setImageResource(R.drawable.s66); 
      ImageView i67 = new ImageView(this); 
      i67.setImageResource(R.drawable.s67); 
      ImageView i68 = new ImageView(this); 
      i68.setImageResource(R.drawable.s68); 
      ImageView i69 = new ImageView(this); 
      i69.setImageResource(R.drawable.s69); 
      ImageView i70 = new ImageView(this); 
      i70.setImageResource(R.drawable.s70); 
      ImageView i71 = new ImageView(this); 
      i71.setImageResource(R.drawable.s71); 
      ImageView i72 = new ImageView(this); 
      i72.setImageResource(R.drawable.s72); 
      ImageView i73 = new ImageView(this); 
      i73.setImageResource(R.drawable.s73); 
      ImageView i74 = new ImageView(this); 
      i74.setImageResource(R.drawable.s74); 
      ImageView i75 = new ImageView(this); 
      i75.setImageResource(R.drawable.s75); 
      ImageView i76 = new ImageView(this); 
      i76.setImageResource(R.drawable.s76); 
      ImageView i77 = new ImageView(this); 
      i77.setImageResource(R.drawable.s77); 
      ImageView i78 = new ImageView(this); 
      i78.setImageResource(R.drawable.s78); 
      ImageView i79 = new ImageView(this); 
      i79.setImageResource(R.drawable.s79); 
      ImageView i80 = new ImageView(this); 
      i80.setImageResource(R.drawable.s80); 
      ImageView i81 = new ImageView(this); 
      i81.setImageResource(R.drawable.s81); 
      ImageView i82 = new ImageView(this); 
      i82.setImageResource(R.drawable.s82); 
      ImageView i83 = new ImageView(this); 
      i83.setImageResource(R.drawable.s83); 
      ImageView i84 = new ImageView(this); 
      i84.setImageResource(R.drawable.s84); 
      ImageView i85 = new ImageView(this); 
      i85.setImageResource(R.drawable.s85); 
      ImageView i86 = new ImageView(this); 
      i86.setImageResource(R.drawable.s86); 


      viewFlipper.addView(i1); 

      viewFlipper.addView(i2); 

      viewFlipper.addView(i3); 

      viewFlipper.addView(i4); 

      viewFlipper.addView(i5); 

      viewFlipper.addView(i6); 

      viewFlipper.addView(i7); 

      viewFlipper.addView(i8); 

      viewFlipper.addView(i9); 

      viewFlipper.addView(i10); 

      viewFlipper.addView(i11); 

      viewFlipper.addView(i12); 

      viewFlipper.addView(i13); 

      viewFlipper.addView(i14); 

      viewFlipper.addView(i15); 

      viewFlipper.addView(i16); 

      viewFlipper.addView(i17); 

      viewFlipper.addView(i18); 

      viewFlipper.addView(i19); 

      viewFlipper.addView(i20); 

      viewFlipper.addView(i21); 

      viewFlipper.addView(i22); 

      viewFlipper.addView(i23); 

      viewFlipper.addView(i24); 

      viewFlipper.addView(i25); 

      viewFlipper.addView(i26); 

      viewFlipper.addView(i27); 

      viewFlipper.addView(i28); 

      viewFlipper.addView(i29); 

      viewFlipper.addView(i30); 

      viewFlipper.addView(i31); 

      viewFlipper.addView(i32); 

      viewFlipper.addView(i33); 

      viewFlipper.addView(i34); 

      viewFlipper.addView(i35); 

      viewFlipper.addView(i36); 

      viewFlipper.addView(i37); 

      viewFlipper.addView(i38); 

      viewFlipper.addView(i39); 

      viewFlipper.addView(i40); 

      viewFlipper.addView(i41); 

      viewFlipper.addView(i42); 

      viewFlipper.addView(i43); 

      viewFlipper.addView(i44); 

      viewFlipper.addView(i45); 

      viewFlipper.addView(i46); 

      viewFlipper.addView(i47); 

      viewFlipper.addView(i48); 

      viewFlipper.addView(i49); 

      viewFlipper.addView(i50); 

      viewFlipper.addView(i51); 

      viewFlipper.addView(i52); 

      viewFlipper.addView(i53); 

      viewFlipper.addView(i54); 

      viewFlipper.addView(i55); 

      viewFlipper.addView(i56); 

      viewFlipper.addView(i57); 

      viewFlipper.addView(i58); 

      viewFlipper.addView(i59); 

      viewFlipper.addView(i60); 

      viewFlipper.addView(i61); 

      viewFlipper.addView(i62); 

      viewFlipper.addView(i63); 

      viewFlipper.addView(i64); 

      viewFlipper.addView(i65); 

      viewFlipper.addView(i66); 

      viewFlipper.addView(i67); 

      viewFlipper.addView(i68); 

      viewFlipper.addView(i69); 

      viewFlipper.addView(i70); 

      viewFlipper.addView(i71); 

      viewFlipper.addView(i72); 

      viewFlipper.addView(i73); 

      viewFlipper.addView(i74); 

      viewFlipper.addView(i75); 

      viewFlipper.addView(i76); 

      viewFlipper.addView(i77); 

      viewFlipper.addView(i78); 

      viewFlipper.addView(i79); 

      viewFlipper.addView(i80); 

      viewFlipper.addView(i81); 

      viewFlipper.addView(i82); 

      viewFlipper.addView(i83); 

      viewFlipper.addView(i84); 

      viewFlipper.addView(i85); 

      viewFlipper.addView(i86); 







      //set up animations 
      slideLeftIn = AnimationUtils.loadAnimation(this, R.anim.slide_left_in); 
      slideLeftOut = AnimationUtils.loadAnimation(this, R.anim.slide_left_out); 
      slideRightIn = AnimationUtils.loadAnimation(this, R.anim.slide_right_in); 
      slideRightOut = AnimationUtils.loadAnimation(this, R.anim.slide_right_out); 
      //put up a brownie as a starter 
      setContentView(viewFlipper); 
      gestureDetector = new GestureDetector(new MyGestureDetector()); 
     } 

     private void recycle() { 
     // TODO Auto-generated method stub 
     } 

     public class MyGestureDetector extends SimpleOnGestureListener { 
      @Override 
      public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 
       try { 
        if (Math.abs(e1.getY() - e2.getY()) > SWIPE_MAX_OFF_PATH) 
         return false; 
        // right to left swipe 
        if(e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) { 

         viewFlipper.setInAnimation(slideLeftIn); 
         viewFlipper.setOutAnimation(slideLeftOut); 
         viewFlipper.showNext(); 
         setContentView(viewFlipper); 
        } // left to right swipe 
        else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) { 

         viewFlipper.setInAnimation(slideRightIn); 
         viewFlipper.setOutAnimation(slideRightOut); 
         viewFlipper.showPrevious(); 
         setContentView(viewFlipper); 

        } 
       } catch (Exception e) { 
        // nothing 
       } 
       return false; 
      } 


      // TODO Auto-generated method stub 

     } 



     @Override 
     public boolean onTouchEvent(MotionEvent event) { 
      if (gestureDetector.onTouchEvent(event)){ 

       return true; 
      } 
      else{ 
       return false; 
      } 
     } 
     // TODO Auto-generated method stub 

     }

來源

2011-03-18 Wintermuteai1

回答

0

viewFlipper可能不是最好的選擇，你在這裏。問題是，所有的圖像都保留在內存中，並沒有被回收。另外還要看你的形象有多大。

水平滾動。你最好的選擇是t o使用圖庫。它是一個水平滾動列表。您可以使用適配器設置內容，Android會照顧您回收視圖。下面是一個很好的例子：http://developer.android.com/resources/tutorials/views/hello-gallery.html

記住，當你實現適配器時，總是先檢查convertView是否爲空，並且如果需要的話只膨脹一個新視圖（即，如果convertView == null）。否則性能將受到影響。

來源

2011-03-19 01:12:06

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