ジェスチャーでviewFlipperを作成するのが遅くなります

Question

私は、viewFlipperとジェスチャーonFlingを使用して移入しているビューを持っています。次のビューを表示するために画面を飛ばしたとき、次のビューを表示するのに2〜3秒かかります。何が起こっているのでしょうか？これは完全に遅すぎます！ここで

は、私のコードの一部抜粋は以下のとおりです。

private void updateView() { 
     Log.i(DEBUG_TAG, "updateView"); 
     // Preferences 
     // boolean to track view on ...toggle method to pass boolean into and display appropriate 

     mAdapter = new ForecastAdapter(mContext, R.layout.forecast_item, mWdm); 
     mListView = (ListView) findViewById(R.id.forecast_list); 

     mGestureDetector = new GestureDetector(new MyGestureDetector()); 
     mForecastDetails = (RelativeLayout) findViewById(R.id.detail_view); 

     initIndicators(); 

     if (mListView.getVisibility() == View.VISIBLE) { 
      displayForecastListView(); 
     } else { 
      displayForecastDetailsView(); 
     } 
    }

private void displayForecastDetailsView() { 

     mListView.setVisibility(View.GONE); 
     mForecastDetails.setVisibility(View.VISIBLE); 

     mMetric = mWdm.metric; 
     // Set the touch listener for the main view to be our custom gesture listener 
     //mainview.setOnTouchListener(new View.OnTouchListener() { 
     this.setOnTouchListener(new View.OnTouchListener() { 
      public boolean onTouch(View v, MotionEvent event) { 
       if (mGestureDetector.onTouchEvent(event)) { 
        return true; 
       } 
       return false; 
      } 
     }); 

     mFlipper = (ExceptionCheckedViewFlipper) findViewById(R.id.details_flipper); 
     mNext = (ImageButton) findViewById(R.id.next_btn); 
     mNext.setImageBitmap(ACCUWX.applyFilter(
       mContext, BitmapFactory.decodeResource(
         mContext.getApplicationContext().getResources(), R.drawable.right_arrow))); 
     mPrevious = (ImageButton) findViewById(R.id.previous_btn); 
     mPrevious.setImageBitmap(ACCUWX.applyFilter(
       mContext, BitmapFactory.decodeResource(
         mContext.getApplicationContext().getResources(), R.drawable.left_arrow))); 
     mNext.setOnClickListener(this); 
     mPrevious.setOnClickListener(this); 

     populateDetailView(mIndex); 
    }

private void populateDetailView(int index) { 

     mForecastDayIndicator.setForecastIndex(index); 

     Log.i(DEBUG_TAG, "pouplateView"); 
     TextView tv; 
     ImageView icon; 
     ImageView alarmIcon; 
     ImageView viewToggle; 
     ForecastModel fm; 
     boolean isEnabled = false; 
     Boolean isAlarm = false; 

     LinearLayout includes = (LinearLayout)mFlipper.getCurrentView(); 

     viewToggle = (ImageView)includes.findViewById(R.id.view_toggle); 

     viewToggle.setOnClickListener(this); 

     LinearLayout ll = (LinearLayout)includes.findViewById(R.id.detail_container); 
     if(index >= 0 && index lessThan mWdm.forecast.size()) { 
      fm = mWdm.forecast.get(index); 

      // day/date 
      tv = (TextView)includes.findViewById(R.id.day_date); 
      tv.setText(fm.name + " " + fm.date); 

      // hi temp 
      tv = (TextView)includes.findViewById(R.id.hi_temp); 
      tv.setText(fm.high + DEG); 

      // lo temp 
      tv = (TextView)includes.findViewById(R.id.lo_temp); 
      tv.setText(fm.low + DEG); 

      // realfeel hi lo 
      tv = (TextView)includes.findViewById(R.id.realtemp); 
      tv.setText(fm.reelfeelhigh + DEG + "/" + fm.reelfeellow + DEG); 


      // day info 
      tv = (TextView)includes.findViewById(R.id.day); 
      tv.setText(mContext.getApplicationContext().getResources().getString(R.string.day).toUpperCase()); 

      // day icon 
      icon = (ImageView)includes.findViewById(R.id.day_icon); 
      icon.setImageResource(ACCUWX.getDrawableId("icon_" + fm.iconCode)); 

      // day shorttext 
      tv = (TextView)includes.findViewById(R.id.day_shorttext); 
      tv.setText(fm.shortText); 


      // night info 
      tv = (TextView)includes.findViewById(R.id.night); 
      tv.setText(mContext.getApplicationContext().getResources().getString(R.string.night).toUpperCase()); 

      // night icon 
      icon = (ImageView)includes.findViewById(R.id.night_icon); 
      icon.setImageResource(ACCUWX.getDrawableId("icon_" + fm.nightCode)); 

      // night shorttext 
      tv = (TextView)includes.findViewById(R.id.night_shorttext); 
      tv.setText(fm.nightText); 

      // headings 
      // precip 
      tv = (TextView)includes.findViewById(R.id.precip_title); 
      tv.setText(mContext.getApplicationContext().getResources().getString(R.string.precip).toUpperCase()); 

      // day 
      tv = (TextView)includes.findViewById(R.id.day_title); 
      tv.setText(mContext.getApplicationContext().getResources().getString(R.string.day).toUpperCase()); 

      // night 
      tv = (TextView)includes.findViewById(R.id.night_title); 
      tv.setText(mContext.getApplicationContext().getResources().getString(R.string.night).toUpperCase()); 

      // wind 
      tv = (TextView)includes.findViewById(R.id.wind_title); 
      tv.setText(mContext.getApplicationContext().getResources().getString(R.string.wind).toUpperCase()); 


      // Precip fields 
      String rainIceUnits = (mMetric == ACCUWX.Units.METRIC) ? mContext.getApplicationContext().getResources().getString(R.string.mm) : mContext.getApplicationContext().getResources().getString(R.string.inches); 
      String snowUnits = (mMetric == ACCUWX.Units.METRIC) ? mContext.getApplicationContext().getResources().getString(R.string.cm) : mContext.getApplicationContext().getResources().getString(R.string.inches); 
      String speedUnits = (mMetric == ACCUWX.Units.METRIC) ? mContext.getApplicationContext().getResources().getString(R.string.kph) : mContext.getApplicationContext().getResources().getString(R.string.mph); 

      // set text color to white if measurements other than 0, else gray out 

      // rain 
      isAlarm = Alarms.checkRainAlarms(mWdm, fm); 
      alarmIcon = (ImageView) includes.findViewById(R.id.rain_alarm_img); 
      if (isAlarm == true) alarmIcon.setVisibility(View.VISIBLE); 
      else alarmIcon.setVisibility(View.INVISIBLE); 

      isEnabled = !(checkForZero(fm.rain) && checkForZero(fm.nightRain)); 
      tv = (TextView)findViewById(R.id.rain); 
      tv.setEnabled(isEnabled); 

      isEnabled = !checkForZero(fm.rain); 
      tv = (TextView)includes.findViewById(R.id.day_rain); 
      tv.setText(fm.rain + " " + rainIceUnits); 
      tv.setEnabled(isEnabled); 

      isEnabled = !checkForZero(fm.nightRain); 
      tv = (TextView)includes.findViewById(R.id.night_rain); 
      tv.setText(fm.nightRain + " " + rainIceUnits); 
      tv.setEnabled(isEnabled); 

      // snow 
      isAlarm = Alarms.checkSnowAlarms(mWdm, fm); 
      alarmIcon = (ImageView) includes.findViewById(R.id.snow_alarm_img); 
      if (isAlarm == true) alarmIcon.setVisibility(View.VISIBLE); 
      else alarmIcon.setVisibility(View.INVISIBLE); 

      isEnabled = !(checkForZero(fm.snow) && checkForZero(fm.nightSnow)); 
      tv = (TextView)findViewById(R.id.snow); 
      tv.setEnabled(isEnabled); 

      isEnabled = !checkForZero(fm.snow); 
      tv = (TextView)includes.findViewById(R.id.day_snow); 
      tv.setText(fm.snow + " " + snowUnits); 
      tv.setEnabled(isEnabled); 

      isEnabled = !checkForZero(fm.nightSnow); 
      tv = (TextView)includes.findViewById(R.id.night_snow); 
      tv.setText(fm.nightSnow + " " + snowUnits); 
      tv.setEnabled(isEnabled); 

      // ice 
      isAlarm = Alarms.checkIceAlarms(mWdm, fm); 
      alarmIcon = (ImageView) includes.findViewById(R.id.ice_alarm_img); 
      if (isAlarm == true) alarmIcon.setVisibility(View.VISIBLE); 
      else alarmIcon.setVisibility(View.INVISIBLE); 

      isEnabled = !(checkForZero(fm.ice) && checkForZero(fm.nightIce)); 
      tv = (TextView)findViewById(R.id.ice); 
      tv.setEnabled(isEnabled); 

      isEnabled = !checkForZero(fm.ice); 
      tv = (TextView)includes.findViewById(R.id.day_ice); 
      tv.setText(fm.ice + " " + rainIceUnits); 
      tv.setEnabled(isEnabled); 

      isEnabled = !checkForZero(fm.nightIce); 
      tv = (TextView)includes.findViewById(R.id.night_ice); 
      tv.setText(fm.nightIce + " " + rainIceUnits); 
      tv.setEnabled(isEnabled); 

      // Wind Data 
      isAlarm = Alarms.checkGustsAlarms(mWdm, fm); 
      alarmIcon = (ImageView) includes.findViewById(R.id.gusts_alarm_img); 
      if (isAlarm == true) alarmIcon.setVisibility(View.VISIBLE); 
      else alarmIcon.setVisibility(View.INVISIBLE); 

      isEnabled = !(checkForZero(fm.gust) && checkForZero(fm.nightGust)); 
      tv = (TextView)findViewById(R.id.gusts); 
      tv.setEnabled(isEnabled); 

      isEnabled = !checkForZero(fm.gust); 
      tv = (TextView)includes.findViewById(R.id.day_gusts); 
      tv.setText(fm.gust + " " + speedUnits); 
      tv.setEnabled(isEnabled); 

      isEnabled = !checkForZero(fm.nightGust); 
      tv = (TextView)includes.findViewById(R.id.night_gusts); 
      tv.setText(fm.nightGust + " " + speedUnits); 
      tv.setEnabled(isEnabled); 

      // speed 
      isAlarm = Alarms.checkSpeedAlarms(mWdm, fm); 
      alarmIcon = (ImageView) includes.findViewById(R.id.speed_alarm_img); 
      if (isAlarm == true) alarmIcon.setVisibility(View.VISIBLE); 
      else alarmIcon.setVisibility(View.INVISIBLE); 

      isEnabled = !(checkForZero(fm.wind) && checkForZero(fm.nightWind)); 
      tv = (TextView)findViewById(R.id.speed); 
      tv.setEnabled(isEnabled); 

      isEnabled = !checkForZero(fm.wind); 
      tv = (TextView)includes.findViewById(R.id.day_speed); 
      tv.setText(fm.wind + " " + speedUnits); 
      tv.setEnabled(isEnabled); 

      isEnabled = !checkForZero(fm.nightWind); 
      tv = (TextView)includes.findViewById(R.id.night_speed); 
      tv.setText(fm.nightWind + " " + speedUnits); 
      tv.setEnabled(isEnabled); 

      // tstorms 
      isAlarm = Alarms.checkTstormAlarms(mWdm, fm); 
      alarmIcon = (ImageView) includes.findViewById(R.id.tstorms_alarm_img); 
      if (isAlarm == true) alarmIcon.setVisibility(View.VISIBLE); 
      else alarmIcon.setVisibility(View.INVISIBLE); 

      isEnabled = !(checkForZero(fm.tstorm) && checkForZero(fm.nightTstorm)); 
      tv = (TextView)findViewById(R.id.tstorms); 
      tv.setEnabled(isEnabled); 

      isEnabled = !checkForZero(fm.tstorm); 
      tv = (TextView)includes.findViewById(R.id.day_tstorms); 
      tv.setText(fm.tstorm + PERCENT); 
      tv.setEnabled(isEnabled); 

      isEnabled = !checkForZero(fm.nightTstorm); 
      tv = (TextView)includes.findViewById(R.id.night_tstorms); 
      tv.setText(fm.nightTstorm + PERCENT); 
      tv.setEnabled(isEnabled); 
     } 

    }

Answer 1

はViewSwiperでそれを実装し、それが違いを作るかどうかを確認してください。ビューを指で動かすことをお探しですか？スワイプジェスチャーに2〜2回速く反応するだけですか？前者にそのような効果を得るためにネイティブに構築された方法がない場合は、家のcreenのソースコードを見てそこから必要なものを取り出して独自のカスタムビューを作成するのが最善の方法です。

編集：あなたのfindViewById（）呼び出しをpopulateメソッドの外で行うことができれば、おそらくそれはかなり高速になります。作成時にそれらの参照を取得し、それらを保持してみてください。そうすれば、参照を行う代わりに.setText（）などを呼び出して設定するだけで済みます。私は、ViewFlipperのレイアウトがsetContentView（）で表示されている限り、findViewById（）を使ってviewFlipper内の何かへの参照を取得できるはずであるとしても、100％ではないと思います現在表示されている子です。