package com.aa.rr.myview; import android.content.Context; import android.content.res.TypedArray; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Paint; import android.os.Handler; import android.os.Message; import android.util.AttributeSet; import android.view.MotionEvent; import android.view.View; import android.widget.Toast; import test.com.test.R; /** * Created by Administrator on 2019/4/17. */ public class MyClickView extends View { private Paint mPaint = new Paint(); private boolean mNotDestroy = true; private int mCount = 0; private MyThread myThread; Bitmap bitmap; // attrs private String mText; private boolean mStartChange; Context mContext; public MyClickView(Context context) { super(context); init(); } public MyClickView(Context context, AttributeSet attrs) { super(context, attrs); TypedArray ta = context.obtainStyledAttributes(attrs, R.styleable.MyView); mText = ta.getString(R.styleable.MyView_text); mStartChange = ta.getBoolean(R.styleable.MyView_startChange, false); // Log.d("ASDF", "mText=" + mText + ", mStartChange=" + mStartChange); ta.recycle(); init(); } @Override protected void onFinishInflate() { super.onFinishInflate(); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { super.onMeasure(widthMeasureSpec, heightMeasureSpec); } @Override protected void onLayout(boolean changed, int left, int top, int right, int bottom) { super.onLayout(changed, left, top, right, bottom); } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); mPaint.setTextSize(50); canvas.drawText(mText + mCount++, 20f, 100f, mPaint); canvas.save(); canvas.rotate(60, getWidth() / 2, getHeight() / 2); canvas.drawBitmap(bitmap, 20f, 50f, mPaint); canvas.restore(); if (null == myThread) { myThread = new MyThread(); myThread.start(); } } @Override public boolean dispatchTouchEvent(MotionEvent ev) { return super.dispatchTouchEvent(ev); } @Override protected void onAttachedToWindow() { super.onAttachedToWindow(); mNotDestroy = true; } @Override protected void onDetachedFromWindow() { mNotDestroy = false; super.onDetachedFromWindow(); } // 统计500ms内的点击次数 TouchEventCountThread countThread = new TouchEventCountThread(); // 根据TouchEventCountThread统计到的点击次数, perform单击还是双击事件 TouchEventHandler mTouchEventHandler = new TouchEventHandler(); @Override public boolean onTouchEvent(MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN: if (0 == countThread.touchCount) // 第一次按下时,开始统计 postDelayed(countThread, 500); break; case MotionEvent.ACTION_UP: // 一次点击事件要有按下和抬起, 有抬起必有按下, 所以只需要在ACTION_UP中处理 countThread.touchCount++; // 如果是长按操作, 则Handler的消息,不能将touchCount置0, 需要特殊处理 if (countThread.isLongClick) { countThread.touchCount = 0; countThread.isLongClick = false; } break; case MotionEvent.ACTION_MOVE: break; case MotionEvent.ACTION_CANCEL: break; default: break; } return super.onTouchEvent(event); } public class TouchEventCountThread implements Runnable { public int touchCount = 0; public boolean isLongClick = false; @Override public void run() { Message msg = new Message(); if (0 == touchCount) { // long click isLongClick = true; } else { msg.arg1 = touchCount; mTouchEventHandler.sendMessage(msg); touchCount = 0; } } } public class TouchEventHandler extends Handler { @Override public void handleMessage(Message msg) { Toast.makeText(mContext, "touch " + msg.arg1 + " time.", Toast.LENGTH_SHORT).show(); } } class MyThread extends Thread { @Override public void run() { super.run(); while (mNotDestroy) { if (mStartChange) { postInvalidate(); try { Thread.sleep(500); } catch (InterruptedException e) { e.printStackTrace(); } } } } } public void init() { mContext = getContext(); bitmap = BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher); } public void setText(String mText) { this.mText = mText; } public void setStartChange(boolean mStartChange) { this.mStartChange = mStartChange; } public boolean getStartChange() { return this.mStartChange; } }
attrs
<?xml version="1.0" encoding="utf-8"?> <resources> <declare-styleable name="MyView"> <attr name="text" format="string"/> <attr name="startChange" format="boolean"/> </declare-styleable> </resources>