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app/src/main/java/com/gh/gamecenter/ViewImageActivity.java

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+package com.gh.gamecenter;
+
+import java.util.ArrayList;
+
+import android.content.Intent;
+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.DisplayMetrics;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView.ScaleType;
+import android.widget.RelativeLayout;
+
+import com.gh.base.BaseActivity;
+import com.gh.common.util.DisplayUtils;
+import com.gh.common.util.ImageUtils;
+import com.gh.common.view.Gh_ImageView;
+import com.gh.common.view.Gh_ImageView.OnSingleTapListener;
+
+/**
+ * 查看游戏截图页面
+ * 
+ * @author 黄壮华
+ * 
+ */
+public class ViewImageActivity extends BaseActivity implements
+		OnPageChangeListener {
+
+	private ViewPager viewimage_vp_show;
+	private ViewImageAdapter adapter;
+	private View viewimage_slide_line;
+	private RelativeLayout.LayoutParams rparams;
+
+	private ArrayList<String> urls;
+
+	private int current;
+	private int width;
+	private String scaleType;
+
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		
+		super.onCreate(savedInstanceState);
+
+		Intent intent = getIntent();
+		urls = intent.getStringArrayListExtra("urls");
+		current = intent.getIntExtra("current", 0);
+		scaleType = intent.getStringExtra("ScaleType");
+
+		setContentView(R.layout.activity_viewimage);
+
+		DisplayMetrics outMetrics = new DisplayMetrics();
+		getWindowManager().getDefaultDisplay().getMetrics(outMetrics);
+		width = outMetrics.widthPixels / urls.size();
+
+		rparams = new RelativeLayout.LayoutParams(width, DisplayUtils.dip2px(
+				getApplicationContext(), 1));
+		rparams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
+		rparams.bottomMargin = DisplayUtils.dip2px(getApplicationContext(), 10);
+		rparams.leftMargin = width * current;
+		viewimage_slide_line = findViewById(R.id.viewimage_slide_line);
+		viewimage_slide_line.setLayoutParams(rparams);
+		
+		viewimage_vp_show = (ViewPager) findViewById(R.id.viewimage_vp_show);
+		adapter = new ViewImageAdapter();
+		viewimage_vp_show.setAdapter(adapter);
+		viewimage_vp_show.setCurrentItem(current);
+		viewimage_vp_show.addOnPageChangeListener(this);
+	}
+
+	private class ViewImageAdapter extends PagerAdapter implements
+			OnSingleTapListener {
+
+		@Override
+		public int getCount() {
+			
+			return urls.size();
+		}
+
+		@Override
+		public Object instantiateItem(ViewGroup container, int position) {
+			
+			Gh_ImageView imageView = new Gh_ImageView(ViewImageActivity.this);
+			imageView.setOnSingleTapListener(this);
+			if (scaleType != null) {
+				ImageUtils.getInstance(getApplicationContext()).display(
+						urls.get(position), imageView, ScaleType.FIT_CENTER);
+			} else {
+				ImageUtils.getInstance(getApplicationContext()).display(
+						urls.get(position), imageView);
+			}
+			container.addView(imageView);
+			return imageView;
+		}
+
+		@Override
+		public boolean isViewFromObject(View view, Object object) {
+			
+			return view == object;
+		}
+
+		@Override
+		public void destroyItem(ViewGroup container, int position, Object object) {
+			
+			container.removeView((View) object);
+			object = null;
+		}
+
+		@Override
+		public void onSingleTap() {
+			
+			finish();
+		}
+	}
+
+	@Override
+	public void onPageScrollStateChanged(int newState) {
+		
+
+	}
+
+	@Override
+	public void onPageScrolled(int position, float positionOffset,
+			int positionOffsetPixels) {
+		
+		if (positionOffset != 0) {
+			rparams.leftMargin = (int) (width * (positionOffset + position));
+			viewimage_slide_line.setLayoutParams(rparams);
+		}
+	}
+
+	@Override
+	public void onPageSelected(int position) {
+		
+
+	}
+
+	@Override
+	protected void onDestroy() {
+		
+		super.onDestroy();
+		viewimage_vp_show = null;
+		adapter = null;
+		viewimage_slide_line = null;
+		rparams = null;
+		urls = null;
+	}
+}