move some constants to Constants Class and remove some useless import

src/com/dodowaterfall/Constants.java

@@ -0,0 +1,13 @@
+package com.dodowaterfall;
+
+public class Constants {
+
+	public final static int COLUMN_COUNT = 4; // 显示列数
+
+	public final static int PICTURE_COUNT_PER_LOAD = 30; // 每次加载30张图片
+
+	public final static int PICTURE_TOTAL_COUNT = 10000;   //可以加载的最多文件数
+
+	public final static int HANDLER_WHAT = 1;
+
+}

src/com/dodowaterfall/MainActivity.java

@@ -3,7 +3,6 @@
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Random;
@@ -14,18 +13,13 @@
 import android.app.Activity;
 import android.content.Context;
 import android.content.res.AssetManager;
-import android.graphics.Rect;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
 import android.util.Log;
 import android.view.Display;
-import android.view.LayoutInflater;
-import android.view.View;
 import android.view.ViewGroup.LayoutParams;
 import android.widget.LinearLayout;
-import android.widget.ScrollView;
-import android.widget.Toast;
 
 public class MainActivity extends Activity {
 
@@ -39,8 +33,8 @@ public class MainActivity extends Activity {
 	private Handler handler;
 	private int item_width;
 
-	private int column_count = 4;// 显示列数
-	private int page_count = 30;// 每次加载30张图片
+	private int column_count = Constants.COLUMN_COUNT;// 显示列数
+	private int page_count = Constants.PICTURE_COUNT_PER_LOAD;// 每次加载30张图片
 
 	private int current_page = 0;// 当前页数
 
@@ -67,7 +61,7 @@ public void onCreate(Bundle savedInstanceState) {
 
 		display = this.getWindowManager().getDefaultDisplay();
 		item_width = display.getWidth() / column_count;// 根据屏幕大小计算每列大小
-		asset_manager = this.getAssets();
+		asset_manager = getAssets();
 
 		column_height = new int[column_count];
 		context = this;
@@ -203,7 +197,7 @@ public void handleMessage(Message msg) {
 				// super.handleMessage(msg);
 
 				switch (msg.what) {
-				case 1:
+				case Constants.HANDLER_WHAT:
 
 					FlowView v = (FlowView) msg.obj;
 					int w = msg.arg1;
@@ -259,21 +253,21 @@ public boolean sendMessageAtTime(Message msg, long uptimeMillis) {
 		}
 
 		// 加载所有图片路径
-
 		try {
 			image_filenames = Arrays.asList(asset_manager.list(image_path));
-
 		} catch (IOException e) {
 			e.printStackTrace();
 		}
+
 		// 第一次加载
 		AddItemToContainer(current_page, page_count);
 	}
 
 	private void AddItemToContainer(int pageindex, int pagecount) {
+
 		int currentIndex = pageindex * pagecount;
-
-		int imagecount = 10000;// image_filenames.size();
+		int imagecount = Constants.PICTURE_TOTAL_COUNT;// image_filenames.size();
+
 		for (int i = currentIndex; i < pagecount * (pageindex + 1)
 				&& i < imagecount; i++) {
 			loaded_count++;
@@ -294,6 +288,7 @@ private void AddImage(String filename, int rowIndex, int id) {
 		item.setRowIndex(rowIndex);
 		item.setId(id);
 		item.setViewHandler(this.handler);
+
 		// 多线程参数
 		FlowTag param = new FlowTag();
 		param.setFlowId(id);

src/com/dodowaterfall/widget/FlowTag.java

@@ -1,11 +1,17 @@
 package com.dodowaterfall.widget;
 
+import com.dodowaterfall.Constants;
+
 import android.content.res.AssetManager;
 
 public class FlowTag {
+
+	public final int what = Constants.HANDLER_WHAT;
+
 	private int flowId;
 	private String fileName;
-	public final int what = 1;
+	private int ItemWidth;
+	private AssetManager assetManager;
 
 	public int getFlowId() {
 		return flowId;
@@ -23,9 +29,6 @@ public void setFileName(String fileName) {
 		this.fileName = fileName;
 	}
 
-	private AssetManager assetManager;
-	private int ItemWidth;
-
 	public AssetManager getAssetManager() {
 		return assetManager;
 	}

src/com/dodowaterfall/widget/FlowView.java

@@ -9,7 +9,6 @@
 import android.graphics.BitmapFactory;
 import android.graphics.drawable.AnimationDrawable;
 import android.widget.ImageView;
-import android.widget.ScrollView;
 import android.widget.Toast;
 import android.os.Handler;
 import android.os.Message;
@@ -51,7 +50,7 @@ public FlowView(Context c) {
 	private void Init() {
 
 		setOnClickListener(this);
-		this.setOnLongClickListener(this);
+		setOnLongClickListener(this);
 		setAdjustViewBounds(true);
 
 	}