Android滑动解锁控件

import android.content.Context;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.Canvas;import android.graphics.Rect;import android.os.Handler;import android.os.Message;import android.os.Vibrator;import android.util.AttributeSet;import android.util.Log;import android.view.MotionEvent;import android.view.View;import android.widget.ImageView;import android.widget.RelativeLayout;import android.widget.TextView; import com.mosjoy.ad.R; public class SliderRelativeLayout extends RelativeLayout {     private static String TAG = "SliderRelativeLayout";    private TextView tv_slider_icon = null; // 初始控件，用来判断是否为拖动？    private Bitmap dragBitmap = null; //拖拽图片    private Context mContext = null; // 初始化图片拖拽时的Bitmap对象    private Handler mainHandler = null; //与主Activity通信的Handler对象    private ImageView mPhoneImageView;    private ImageView mUnlockImageView;    private ImageView mMessageImageView;    private ImageView mCameraImageView;    private boolean mStopBoolean = false;    private Canvas mCanvas;    public SliderRelativeLayout(Context context) {        super(context);        mContext = context;        initDragBitmap();    }     public SliderRelativeLayout(Context context, AttributeSet attrs) {        super(context, attrs, 0);        mContext = context;        initDragBitmap();    }     public SliderRelativeLayout(Context context, AttributeSet attrs,            int defStyle) {        super(context, attrs, defStyle);        mContext = context;        initDragBitmap();    }         // 初始化图片拖拽时的Bitmap对象    private void initDragBitmap() {        if (dragBitmap == null)            dragBitmap = BitmapFactory.decodeResource(mContext.getResources(),                    R.drawable.getup_slider_ico_normal);    }         @Override    protected void onFinishInflate() {        super.onFinishInflate();        // 该控件主要判断是否处于滑动点击区域。滑动时 处于INVISIBLE(不可见)状态，滑动时处于VISIBLE(可见)状态        tv_slider_icon = (TextView) findViewById(R.id.slider_icon);        mPhoneImageView = (ImageView) findViewById(R.id.iv_phone);        mUnlockImageView = (ImageView) findViewById(R.id.iv_unlock);        mCameraImageView = (ImageView) findViewById(R.id.iv_camera);        mMessageImageView = (ImageView) findViewById(R.id.iv_message);    }    private int mLastMoveX = 1000;  //当前bitmap应该绘制的地方 ， 初始值为足够大，可以认为看不见    private int mLastMoveY = 1000;  //当前bitmap应该绘制的地方 ， 初始值为足够大，可以认为看不见    public boolean onTouchEvent(MotionEvent event) {        int x = (int) event.getX();        int y = (int) event.getY();        switch (event.getAction()) {        case MotionEvent.ACTION_DOWN:            mLastMoveX = (int) event.getX();            mLastMoveY = (int) event.getY();            //处理Action_Down事件：  判断是否点击了滑动区域            return handleActionDownEvenet(event);        case MotionEvent.ACTION_MOVE:            mLastMoveX = x; //保存了X轴方向            mLastMoveY = y;            invalidate(); //重新绘制               return true;        case MotionEvent.ACTION_UP:            //处理Action_Up事件：  判断是否解锁成功，成功则结束我们的Activity ；否则 ，缓慢回退该图片。            handleActionUpEvent(event);            return true;        }        return super.onTouchEvent(event);    }     // 绘制拖动时的图片    @Override    protected void onDraw (Canvas canvas) {        super.onDraw(canvas);              // 图片更随手势移动        if (!mStopBoolean) {            invalidateDragImg(canvas);        }        mCanvas = canvas;    }     // 图片更随手势移动    private void invalidateDragImg(Canvas canvas) {        //Log.e(TAG, "handleActionUpEvenet : invalidateDragImg" );        //以合适的坐标值绘制该图片        int drawXCor = mLastMoveX - dragBitmap.getWidth()/2;        int drawYCor = mLastMoveY - dragBitmap.getHeight()/2;        canvas.drawBitmap(dragBitmap,  drawXCor < 0 ? 5 : drawXCor , drawYCor , null);//      isHitUnlock(canvas);    }     // 手势落下是，是否点中了图片，即是否需要开始移动    private boolean handleActionDownEvenet(MotionEvent event) {        Rect rect = new Rect();        tv_slider_icon.getHitRect(rect);        boolean isHit = rect.contains((int) event.getX(), (int) event.getY());        //开始拖拽 ，隐藏该图片        if(isHit && !mStopBoolean){             tv_slider_icon.setVisibility(View.INVISIBLE);            mPhoneImageView.setVisibility(View.VISIBLE);            mUnlockImageView.setVisibility(View.VISIBLE);            mMessageImageView.setVisibility(View.VISIBLE);            mCameraImageView.setVisibility(View.VISIBLE);        }        return isHit;    }     //判断是否到达解锁点    private boolean isHitUnlock() {        Rect phoneRect = new Rect();        mPhoneImageView.getHitRect(phoneRect);        Rect unlockRect = new Rect();        mUnlockImageView.getHitRect(unlockRect);        Rect messageRect = new Rect();        mMessageImageView.getHitRect(messageRect);        Rect cameraRect = new Rect();        mCameraImageView.getHitRect(cameraRect);        //解锁到电话界面        if(phoneRect.contains(mLastMoveX,mLastMoveY)){            mStopBoolean = true;            adStopTwoSecond();           //结束我们的主Activity界面            Message msg = new Message();            msg.what = MainLockActivity.MSG_PHONE_LOCK_SUCESS;            mainHandler.sendMessageDelayed(msg, 2*1000);//         mainHandler.obtainMessage(MainLockActivity.MSG_PHONE_LOCK_SUCESS).sendToTarget();           return true;        }else if(unlockRect.contains(mLastMoveX,mLastMoveY)){            mStopBoolean = true;            adStopTwoSecond();            //结束我们的主Activity界面            Message msg = new Message();            msg.what = MainLockActivity.MSG_LOCK_SUCESS;            mainHandler.sendMessageDelayed(msg, 2*1000);            return true;        }else if(messageRect.contains(mLastMoveX,mLastMoveY)){            mStopBoolean = true;            adStopTwoSecond();            //结束我们的主Activity界面            Message msg = new Message();            msg.what = MainLockActivity.MSG_MESSAGE_LOCK_SUCESS;            mainHandler.sendMessageDelayed(msg, 2*1000);//          mainHandler.obtainMessage(MainLockActivity.MSG_MESSAGE_LOCK_SUCESS).sendToTarget();            return true;        }else if(cameraRect.contains(mLastMoveX,mLastMoveY)){            mStopBoolean = true;            adStopTwoSecond();            //结束我们的主Activity界面            Message msg = new Message();            msg.what = MainLockActivity.MSG_CAMERA_LOOK_SUCESS;            mainHandler.sendMessageDelayed(msg, 2*1000);//          mainHandler.obtainMessage(MainLockActivity.MSG_CAMERA_LOOK_SUCESS).sendToTarget();            return true;        }        return false;    }         //回退动画时间间隔值    private static int BACK_DURATION = 20 ;   // 20ms    //水平方向前进速率    private static float VE_HORIZONTAL = 0.7f ;  //0.1dip/ms    //判断松开手指时，是否达到末尾即可以开锁了 , 是，则开锁，否则，通过一定的算法使其回退。    private void handleActionUpEvent(MotionEvent event){               int x = (int) event.getX() ;           int y = (int)event.getY();        //解锁到电话界面        if(isHitUnlock()){        }else {            mStopBoolean = false;            //没有成功解锁，以一定的算法使其回退            //每隔20ms , 速率为0.6dip/ms ,  使当前的图片往后回退一段距离，直到到达最左端              mLastMoveX = x ;  //记录手势松开时，当前的坐标位置。            int distance = x - tv_slider_icon.getRight() ;            //只有移动了足够距离才回退            Log.e(TAG, "handleActionUpEvent : mLastMoveX -->" + mLastMoveX + " distance -->" + distance );            if(distance >= 0)                mHandler.postDelayed(BackDragImgTask, BACK_DURATION);            else{  //复原初始场景                resetViewState();            }        }    }         //暂停两秒    private void adStopTwoSecond() {        mPhoneImageView.setVisibility(View.INVISIBLE);        mUnlockImageView.setVisibility(View.INVISIBLE);        mCameraImageView.setVisibility(View.INVISIBLE);        mMessageImageView.setVisibility(View.INVISIBLE);//      mCanvas.drawBitmap(dragBitmap, 2000, 2000, null);        invalidate();//      try {//          Thread.sleep(2*1000);//      } catch (InterruptedException e) {//          e.printStackTrace();//      }    }         //重置初始的状态，显示tv_slider_icon图像，使bitmap不可见    private void resetViewState(){        mLastMoveX = 1000;        mLastMoveY = 1000;        tv_slider_icon.setVisibility(View.VISIBLE);        mPhoneImageView.setVisibility(View.INVISIBLE);        mUnlockImageView.setVisibility(View.INVISIBLE);        mCameraImageView.setVisibility(View.INVISIBLE);        mMessageImageView.setVisibility(View.INVISIBLE);        invalidate();        //重绘最后一次    }         //通过延时控制当前绘制bitmap的位置坐标    private Runnable BackDragImgTask = new Runnable(){        public void run(){            //一下次Bitmap应该到达的坐标值            mLastMoveX = mLastMoveX - (int)(BACK_DURATION * VE_HORIZONTAL);            invalidate();//重绘                  //是否需要下一次动画 ？ 到达了初始位置，不在需要绘制            boolean shouldEnd = Math.abs(mLastMoveX - tv_slider_icon.getRight()) <= 8 ;                     if(!shouldEnd)                mHandler.postDelayed(BackDragImgTask, BACK_DURATION);            else { //复原初始场景                resetViewState();              }                      }    };         private Handler mHandler =new Handler (){        public void handleMessage(Message msg){        }    };    //震动一下下咯    private void virbate(){        Vibrator vibrator = (Vibrator) mContext.getSystemService(Context.VIBRATOR_SERVICE);        vibrator.vibrate(200);    }    public void setMainHandler(Handler handler){        mainHandler = handler;//activity所在的Handler对象    }}
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