Swipe ImageView

08.09.2014 - 11:26

Merhabalar;

Uygulamamda kullanacağım bir SwipeViewpager uygulaması indirdim. Uygulama açıldığı zaman ImageView in ortalı olmasını istiyorum yapamadım ImageView i for içinde kontrol etmiş set.gravitiy denedim olmadı yardımcı olabilirseniz sevinirim.

Resim de gördüğünüz gibi olmasını istemiyorum ortadan başlamasını istiyorum. Teşekkürler

Kodlar;

package com.androidbegin.viewpagertutorial;

import android.app.Activity;
import android.os.Bundle;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.util.Log;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.LinearLayout.LayoutParams;

public class MainActivity extends Activity
{
   // Declare Variables
   ViewPager viewPager;
   PagerAdapter adapter;
   int[] flag;
   LinearLayout llDots;

   @Override
   public void onCreate(Bundle savedInstanceState)
   {
       super.onCreate(savedInstanceState);
       // Get the view from viewpager_main.xml
       setContentView(R.layout.viewpager_main);

       flag = new int[] { R.drawable.abc, R.drawable.xyz,
               R.drawable.abc, R.drawable.xyz,
               R.drawable.abc, R.drawable.xyz, R.drawable.abc,
               R.drawable.xyz, R.drawable.abc, R.drawable.xyz };

       llDots=(LinearLayout) findViewById(R.id.llDots);
       viewPager = (ViewPager) findViewById(R.id.pager);

       adapter = new ViewPagerAdapter(this, flag);
       viewPager.setAdapter(adapter);

       for (int i = 0; i < adapter.getCount(); i++)
       {
           ImageButton imgDot = new ImageButton(this);
           imgDot.setTag(i);
           imgDot.setImageResource(R.drawable.dot_selector);
           imgDot.setBackgroundResource(0);
           imgDot.setPadding(5, 5, 5, 5);
           LayoutParams params = new LayoutParams(20, 20);
           imgDot.setLayoutParams(params);
           if(i == 0)
               imgDot.setSelected(true);

           llDots.addView(imgDot);
       }

       viewPager.setOnPageChangeListener(new OnPageChangeListener()
       {

           @Override
           public void onPageSelected(int pos)
           {
               Log.e("", "Page Selected is ===> " + pos);
               for (int i = 0; i < adapter.getCount(); i++)
               {
                   if(i != pos)
                   {
                       ((ImageView)llDots.findViewWithTag(i)).setSelected(false);
                   }
               }
               ((ImageView)llDots.findViewWithTag(pos)).setSelected(true);
           }

           @Override
           public void onPageScrolled(int pos, float arg1, int arg2)
           {

           }

           @Override
           public void onPageScrollStateChanged(int arg0)
           {

           }
       });
       //int margin = (int)TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 20*2, getResources().getDisplayMetrics());
       //viewPager.setPageMargin(-20);

}

file-imageview.png

6 Görüntülenme

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Cevap Yaz Beğen

1 Cevap

engin.yolal

09.09.2014 - 09:17

onCrate içine şöyle bir basit yapı kurarak,

[code]public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

    ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager);
    ImagePagerAdapter adapter = new ImagePagerAdapter();
    viewPager.setAdapter(adapter);
  }[/code]

Adapter'a da şöyle oluştursanız;

[code]private class ImagePagerAdapter extends PagerAdapter {
    private int[] mImages = new int[] {
        R.drawable.ic_launcher,
        R.drawable.ic_launcher,
        R.drawable.ic_launcher,
        R.drawable.ic_launcher
    };

    @Override
    public int getCount() {
      return mImages.length;
    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
      return view == ((ImageView) object);
    }

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
      Context context = MainActivity.this;
      ImageView imageView = new ImageView(context);
      int padding = context.getResources().getDimensionPixelSize(
          R.dimen.padding_medium);
      imageView.setPadding(padding, padding, padding, padding);
      imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
      imageView.setImageResource(mImages[position]);
      ((ViewPager) container).addView(imageView, 0);
      return imageView;
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
      ((ViewPager) container).removeView((ImageView) object);
    }
  }[/code]

Sorun Çözülebilir diye düşünüyorum.

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Yorum Yap

Mücahit ERDOĞAN

09.09.2014 - 01:29

Çok teşekkür ederim Engin.