Android FlingGallery种完美手势拖动实现

Android FlingGallery类完美手势拖动实现

网上找了很多关于FlingGallery类拖动的例子，还是很不错的，但是感觉不是很完美，拖动的只能是界面一致的布局，很不灵活，我觉得如果能够拖动不同的布局页面，就是拖动一下换一个页面布局，那就很完美了，于是我就在原有的基础上修改了一点点代码，最终被我给解决了这个问题。下面我就给大家看看我修改后的代码：

先贴上几张图

FlingGalleryActivity.java 实现类：

package com.droidful.flinggallery;import android.app.Activity;import android.content.Context;import android.os.Bundle;import android.util.Log;import android.view.MotionEvent;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.widget.ArrayAdapter;import android.widget.CheckBox;import android.widget.LinearLayout;import android.widget.TableLayout;import android.widget.TextView;import android.widget.Toast;public class FlingGalleryActivity extends Activity{    private final String[] mLabelArray = {"View1", "View2", "View3", "View4"};private FlingGallery mGallery;private CheckBox mCheckBox;private TextView t1;    // Note: The following handler is critical to correct function of    // the FlingGallery class. This enables the FlingGallery class to    // detect when the motion event has ended by finger being lifted    @Override    public boolean onTouchEvent(MotionEvent event){        return mGallery.onGalleryTouchEvent(event);    }    public void onCreate(Bundle savedInstanceState)    {        super.onCreate(savedInstanceState);        mGallery = new FlingGallery(this);        mGallery.setPaddingWidth(5);        mGallery.setAdapter(new ArrayAdapter&lt;String&gt;(getApplicationContext(), android.R.layout.simple_list_item_1, mLabelArray)        {        @Override        public View getView(int position, View convertView, ViewGroup parent)        {        Log.d("msg", "count="+position);//            if (convertView != null && convertView instanceof GalleryViewItem)//                {//            GalleryViewItem galleryView = (GalleryViewItem) convertView;////            galleryView.mEdit1.setText("");//            galleryView.mText1.setText(mLabelArray[position]);//            galleryView.mText1.setBackgroundColor(mColorArray[position]);//            galleryView.mText2.setText(mLabelArray[position]);//            galleryView.mText2.setBackgroundColor(mColorArray[position]);//            Log.d("msg", "count="+position); //            return galleryView;//                }            return new GalleryViewItem(getApplicationContext(), position);        }        });        LinearLayout layout = new LinearLayout(getApplicationContext());        layout.setOrientation(LinearLayout.VERTICAL);LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,LinearLayout.LayoutParams.MATCH_PARENT);//layoutParams.setMargins(10, 10, 10, 10);layoutParams.weight = 1.0f;          layout.addView(mGallery, layoutParams);            mCheckBox = new CheckBox(getApplicationContext());        mCheckBox.setText("Gallery is Circular");        mCheckBox.setPadding(50, 10, 0, 10);        mCheckBox.setTextSize(30);        mCheckBox.setChecked(true);        mCheckBox.setOnClickListener(new OnClickListener()        {@Overridepublic void onClick(View view){mGallery.setIsGalleryCircular(mCheckBox.isChecked());}        });        layout.addView(mCheckBox, new LinearLayout.LayoutParams(    LinearLayout.LayoutParams.MATCH_PARENT,    LinearLayout.LayoutParams.WRAP_CONTENT));            setContentView(layout);                    }private class GalleryViewItem extends TableLayout{public GalleryViewItem(Context context, int position){super(context);this.setOrientation(LinearLayout.VERTICAL);this.setLayoutParams(new LinearLayout.LayoutParams(    LinearLayout.LayoutParams.WRAP_CONTENT,    LinearLayout.LayoutParams.WRAP_CONTENT));    if(position==0){    View view = (View)getLayoutInflater().inflate(R.layout.main01,null);    //给里面控件设置事件监听            t1 = (TextView)view.findViewById(R.id.main_view01);            t1.setOnClickListener(new OnClickListener() {        @Override    public void onClick(View v) {    Toast.makeText(getApplicationContext(), t1.getText().toString(), Toast.LENGTH_SHORT).show();    }    });    this.addView(view,new LinearLayout.LayoutParams(        LinearLayout.LayoutParams.FILL_PARENT,        LinearLayout.LayoutParams.FILL_PARENT));    }else if(position==1){    View view = (View)getLayoutInflater().inflate(R.layout.main02,null);    this.addView(view,new LinearLayout.LayoutParams(        LinearLayout.LayoutParams.FILL_PARENT,        LinearLayout.LayoutParams.FILL_PARENT));    }else if(position==2){    View view = (View)getLayoutInflater().inflate(R.layout.main03,null);    this.addView(view,new LinearLayout.LayoutParams(        LinearLayout.LayoutParams.FILL_PARENT,        LinearLayout.LayoutParams.FILL_PARENT));    }else if(position==3){    View view = (View)getLayoutInflater().inflate(R.layout.main04,null);    this.addView(view,new LinearLayout.LayoutParams(        LinearLayout.LayoutParams.FILL_PARENT,        LinearLayout.LayoutParams.FILL_PARENT));    }}}}

FlingGallery.java 工具类

&lt;?xml version="1.0" encoding="utf-8"?&gt;&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/main"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:background="#ddeeff"    android:gravity="center"    &gt;&lt;TextView      android:id="@+id/main_view01"    android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:gravity="center"    android:text="View4"    android:textSize="20dp"    android:textColor="#FFFFFF"    /&gt;&lt;/LinearLayout&gt;

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Android FlingGallery种完美手势拖动实

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