下拉刷新的实现、双击事件，以及按钮的拖拽

自己写的双击事件以及

主程序

package com.test.dukang.mypullgoogle;import android.app.Activity;import android.content.Context;import android.os.Bundle;import android.support.v4.widget.SwipeRefreshLayout;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.widget.ArrayAdapter;import android.widget.ImageView;import android.widget.ListView;public class MainActivity extends Activity {    private SwipeRefreshLayout mSwipeRefreshLayout;    private ListView mListView;    private MyButton myButton;    private ImageView mImageView;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        myButton= (MyButton) findViewById(R.id.button);        mImageView= (ImageView) findViewById(R.id.imageView);        myButton.setOnDoubleClickListener(new MyButton.OnDoubleClick() {            @Override            public void onDoubleClick(View view) {                mImageView.setImageResource(R.mipmap.ic_launcher);            }        });    }}

继承控件的程序

package com.test.dukang.mypullgoogle;import android.animation.ObjectAnimator;import android.content.Context;import android.util.AttributeSet;import android.util.Log;import android.view.GestureDetector;import android.view.MotionEvent;import android.view.View;import android.widget.Button;import java.net.InterfaceAddress;/** * Created by Administrator on 2015/9/24. */public class MyButton extends Button {    private GestureDetector mGestureDetector;    //事件的回调，首先需要些一个接口，然后用接口创建一个对象，    //添加get、set方法    private OnDoubleClick onDoubleClickListener;    public OnDoubleClick getOnDoubleClickListener() {        return onDoubleClickListener;    }    public void setOnDoubleClickListener(OnDoubleClick onDoubleClickListener) {        this.onDoubleClickListener = onDoubleClickListener;    }    public MyButton(Context context) {        super(context);    }    //创建接口    interface OnDoubleClick {        public void onDoubleClick(View view);    }    public MyButton(Context context, AttributeSet attrs) {        super(context, attrs);        mGestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {            @Override            public boolean onDoubleTap(MotionEvent e) {                //设置双击事件的响应                if (onDoubleClickListener != null) {                    onDoubleClickListener.onDoubleClick(MyButton.this);                }                Log.d("asdfd", "点击了两次");                return true;            }            //左滑，右滑等事件,滑动后才会响应            @Override            public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {                if (Math.abs(e2.getX() - e1.getX()) > 50) {                    Log.d("asdfd", "在X轴滑动");                    ObjectAnimator.ofFloat(MyButton.this, "translationX", getTranslationX(), e2.getX() - e1.getX()).setDuration(1000).start();                    return true;                }                return super.onFling(e1, e2, velocityX, velocityY);            }            @Override            public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {                setTranslationX(getTranslationX() + e2.getX() - e1.getX());                setTranslationY(getTranslationY() + e2.getY() - e1.getY());                return true;            }        });    }    public MyButton(Context context, AttributeSet attrs, int defStyle) {        super(context, attrs, defStyle);    }    @Override    public boolean onTouchEvent(MotionEvent event) {        //通过添加将按钮的双击事件传递给后面        mGestureDetector.onTouchEvent(event);        return super.onTouchEvent(event);    }}

主布局文件

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    tools:context=".MainActivity">    <com.test.dukang.mypullgoogle.MyButton        android:id="@+id/button"        android:layout_width="300dp"        android:layout_height="150dp"        android:text="Button">    </com.test.dukang.mypullgoogle.MyButton>    <ImageView        android:id="@+id/imageView"        android:layout_width="wrap_content"        android:layout_height="wrap_content" /></LinearLayout>

效果图

谷歌自带下拉刷新

主程序

package com.test.dukang.mypullgoogle;import android.app.Activity;import android.content.Context;import android.os.Bundle;import android.support.v4.widget.SwipeRefreshLayout;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.widget.ArrayAdapter;import android.widget.ImageView;import android.widget.ListView;public class MainActivity extends Activity {    private SwipeRefreshLayout mSwipeRefreshLayout;    private ListView mListView;    private MyButton myButton;    private ImageView mImageView;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        mSwipeRefreshLayout= (SwipeRefreshLayout) findViewById(R.id.swipeLayout);        mListView= (ListView) findViewById(R.id.listView);        ArrayAdapter<String> adapter=new ArrayAdapter<String>(MainActivity.this,android.R.layout.simple_list_item_1,new String[]{"a","b","a","b","a","b","a","b","a","b","a","b","a","b","a","b","a","b","a","b","a","b","a","b","a","b","a","b","a","b","a","b","a","b","a","b","a","b","a","b"});        mListView.setAdapter(adapter);         mSwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {            @Override            public void onRefresh() {                mSwipeRefreshLayout.setRefreshing(true);            }        });    }}

主布局文件

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    tools:context=".MainActivity">    <android.support.v4.widget.SwipeRefreshLayout    android:layout_height="match_parent"    android:layout_width="match_parent"    android:id="@+id/swipeLayout">    <ListView    android:id="@+id/listView"    android:layout_width="match_parent"    android:layout_height="match_parent"></ListView>    </android.support.v4.widget.SwipeRefreshLayout></LinearLayout>

效果图

自己写的简单的下拉刷新

主程序

package com.test.mypulldown;import android.app.Activity;import android.os.Bundle;public class MainActivity extends Activity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);    }   }

继承Fragment的程序

package com.test.mypulldown;import android.animation.ObjectAnimator;import android.annotation.TargetApi;import android.content.Context;import android.os.Build;import android.util.AttributeSet;import android.util.Log;import android.view.LayoutInflater;import android.view.MotionEvent;import android.view.View;import android.widget.ArrayAdapter;import android.widget.FrameLayout;import android.widget.ListView;@TargetApi(Build.VERSION_CODES.HONEYCOMB)public class MyFragment extends FrameLayout {    private ListView shuaXin;    public MyFragment(Context context, AttributeSet attrs, int defStyleAttr) {        super(context, attrs, defStyleAttr);        // TODO Auto-generated constructor stub    }    public MyFragment(Context context, AttributeSet attrs) {        super(context, attrs);        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);        View bottomView = inflater.inflate(R.layout.shuaxin, null);        addView(bottomView);        shuaXin = (ListView) inflater.inflate(R.layout.list_view, null);        ArrayAdapter<String> adapter = new ArrayAdapter<String>(context, android.R.layout.simple_list_item_1,                new String[] { "a", "b", "a", "b", "a", "b", "a", "b", "a", "b", "a", "b", "a", "b", "a", "b", "a", "b",                        "a", "b", "a", "b", "a", "b", "a", "b", "a", "b", "a", "b", "a", "b", });        shuaXin.setAdapter(adapter);        addView(shuaXin);    }    public MyFragment(Context context) {        super(context);        // TODO Auto-generated constructor stub    }    @Override    public boolean onInterceptTouchEvent(MotionEvent ev) {        if (shuaXin.getFirstVisiblePosition() == 0) {            View firstView = shuaXin.getChildAt(shuaXin.getFirstVisiblePosition());            if (firstView.getY() >= 0) {                Log.d("aa", "拦截到事件");                return true;            }        }        return super.onInterceptTouchEvent(ev);    }    float y = 0;    float oldY = 0;    @Override    public boolean onTouchEvent(MotionEvent event) {        switch (event.getAction()) {        case MotionEvent.ACTION_DOWN:            oldY = event.getY();            break;        case MotionEvent.ACTION_MOVE:            Log.d("yidon", "发生移动");            y = event.getY();            Float diatance = y - oldY;            shuaXin.setTranslationY(shuaXin.getTranslationY() + diatance);            oldY = y;            invalidate();            break;        case MotionEvent.ACTION_UP:            ObjectAnimator.ofFloat(shuaXin, "translationY", shuaXin.getTranslationY(), 0).setDuration(300).start();            break;        default:            break;        }        return true;    }}

主布局文件

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical" >    <com.test.mypulldown.MyFragment        android:id="@+id/swiperefresh"        android:layout_width="match_parent"        android:layout_height="match_parent" >    </com.test.mypulldown.MyFragment></LinearLayout>

listView布局文件

<?xml version="1.0" encoding="utf-8"?><ListView xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:id="@+id/list_view"    android:background="#ffffffff"    android:layout_height="match_parent"    android:orientation="vertical" ></ListView>

刷新界面显示

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/shuxin_layout"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:gravity="center_horizontal"    android:orientation="vertical" > <TextView      android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:text="jsidfssf"     android:textSize="30sp"/></LinearLayout>

在这里需要特别注意的是用谷歌提供的或者是用自己的定义的下拉时，都需要改主布局文件中的包名，仅此注意

效果图