Android动态布局仅在oncreate方法完成后显示 isAnswered=0； @凌驾 创建时受保护的void（Bundle savedInstanceState）{ 日志d（标签“1无应答：+无应答”）； Log.d（标记为“matchinggame OnCreate”）； super.onCreate（savedInstanceState）； dbHandler=新的DatabaseHandler（此）； rLayout=新的RelativeLayout（本）； object=新的ObjectObject（）； imageAnswer=新的ImageView（本）； setContentView（rLayout）； trainingID=getIntent（）.getExtras（）.getInt（“trainingID”）； trainingObjectList=new ArrayList（）； trainingObjectList=dbHandler.getAllTrainingObject（trainingID）； ////TODO:2016年5月2日egitim kismi oalcak burda tek tek gosterilecek rLayout.setBackgroundColor（颜色为洋红色）； //Handler Handler=new Handler（）；Log.d（标记“2isanswered:+isAnswered”）； 对于（int i=0；i

发生这种情况是因为在

onCreate

方法完成之前没有显示活动。请尝试将代码移动到

onResume

并查看它是否有效。另外，在当前代码中，不要忘了调用

super.onCreate（savedInstanceState）

相同：（我将for循环后的代码恢复到onresume，但不起作用。因此，如果oncreate必须完成更新布局，我该怎么做？因为for循环中有5次迭代，每次迭代都有不同的布局，我建议使用

AsyncTask

并更新布局

onPostExecuted

。您可以在此处进一步阅读，但我无法在此处同步。）n drag是真的，gooher迭代？

   isAnswered=0;
 @Override
        protected void onCreate(Bundle savedInstanceState) {
            Log.d(TAG,"1isanswered : "+isAnswered);
            Log.d(TAG, "matchinggame OnCreate");
            super.onCreate(savedInstanceState);
            dbHandler = new DatabaseHandler(this);
            rLayout = new RelativeLayout(this);
            object = new ObjectObject();
            imageAnswer=new ImageView(this);
            setContentView(rLayout);


            trainingID = getIntent().getExtras().getInt("trainingid");
            trainingObjectList = new ArrayList<TrainingObject>();

            trainingObjectList = dbHandler.getAllTrainingObject(trainingID);
    //// TODO: 02.05.2016 egitim kismi oalcak burda tek tek gosterilecek

            rLayout.setBackgroundColor(Color.MAGENTA);





           // Handler handler = new Handler(); Log.d(TAG,"2isanswered : "+isAnswered);
            for(int i=0;i<2;i++){Log.d(TAG,"i:"+i); Log.d(TAG,"3tisanswered : "+isAnswered);
                final int finalI = i;


                //  handler.postDelayed(new Runnable() {

                  //  @Override
               //     public void run() {Log.d(TAG,"thread i: "+finalI);
                        Log.d(TAG,"4isanswered : "+isAnswered);
                 isAnswered = 0;
                TrainingObject trainingObject = new TrainingObject();
                trainingObject = trainingObjectList.get(finalI);
                objectCount = 2;
    //test icin
                Log.d(TAG,"testicin trainingobjectid: "+trainingObject.getTrainingobjectID());
                object = dbHandler.getObjectObject(trainingObject.getTrainingobjectAnswer());

                if(trainingObject.getTrainingobjectThree()!=0) objectCount++;
                if(trainingObject.getTrainingobjectFour()!=0) objectCount++;
                if(trainingObject.getTrainingobjectFive()!=0) objectCount++;
                Log.d(TAG,"matchinggame objcount: "+objectCount);

                RelativeLayout.LayoutParams rLayParams = new RelativeLayout.LayoutParams(140,140);

                rLayParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT);
                rLayParams.addRule(RelativeLayout.CENTER_IN_PARENT);

                 imgBytes = object.getObjectImageBlob();
                 bmp = BitmapFactory.decodeByteArray(imgBytes, 0, imgBytes.length);

                imageAnswer.setImageBitmap(bmp);
                imageAnswer.setTag(trainingObject.getTrainingobjectAnswer());
                imageAnswer.setId(R.id.imgAnswer);
                rLayout.removeAllViews();
                rLayout.addView(imageAnswer,rLayParams);




                        imageOne.setOnDragListener(MatchingGame.this);


                imageAnswer.setOnTouchListener(new View.OnTouchListener() {
                    @Override
                    public boolean onTouch(View v, MotionEvent event) { Log.d(TAG,"6isanswered : "+isAnswered);
                        Log.d(TAG,"matchinggame setontouch");
                        if (event.getAction() == MotionEvent.ACTION_DOWN) {
                            Log.d(TAG,"matchinggame setontouch if yes");
                            ClipData data = ClipData.newPlainText("", "");
                            View.DragShadowBuilder shadowBuilder = new View.DragShadowBuilder(v);
                            v.startDrag(data, shadowBuilder, v, 0);
                            v.setVisibility(View.INVISIBLE); Log.d(TAG,"7isanswered : "+isAnswered);
                            return true;
                        } else { Log.d(TAG,"8isanswered : "+isAnswered);
                            return false;
                        }
                    }
                });

                imageAnswer.setOnDragListener(MatchingGame.this);
                Log.d(TAG,"*");
                while(isAnswered==0){
                    //Log.d(TAG,"*");
                }

                //  }
              //  }, 30000*finalI );Log.d(TAG,"thread sonrasi: "+finalI); Log.d(TAG,"5isanswered : "+isAnswered);
            }Log.d(TAG,"ff");
        }