自定义view 自定义进度条 progress

来源：互联网发布：廉价口红知乎编辑：程序博客网时间：2024/05/21 17:09
package qiuhaitao.bwie.com.progress_demo;import android.content.Context;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.os.Build;import android.support.annotation.RequiresApi;import android.util.AttributeSet;import android.view.GestureDetector;import android.view.MotionEvent;import android.view.View;import static android.R.attr.radius;public class MyView extends View{    private SingleTapThread singleTapThread;    private Paint paint,paint1,paint2;    private int windowWidth;    private int windowHeight;    private int ii;    private GestureDetector detector;    /**     * 最后滑动的X坐标     */    private int lastX;    /**     * 最后滑动的Y坐标     */    private int lastY;    public MyView(Context context) {        this(context,null);    }    public MyView(Context context, AttributeSet attrs) {        this(context, attrs,0);    }    public MyView(Context context, AttributeSet attrs, int defStyleAttr) {        super(context, attrs, defStyleAttr);    }    @Override    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {        super.onMeasure(widthMeasureSpec, heightMeasureSpec);        //测量模式        int widthMode = MeasureSpec.getMode(widthMeasureSpec);        int heightMode = MeasureSpec.getMode(heightMeasureSpec);        //测量规格大小        int widthSize = MeasureSpec.getSize(widthMeasureSpec);        int heightSize = MeasureSpec.getSize(heightMeasureSpec);        int width;        int height;        if (widthMode == MeasureSpec.EXACTLY) {            width=widthSize;        } else if (widthMode == MeasureSpec.AT_MOST) {            width=Math.min(widthSize,radius*2);        } else {            width=windowWidth;        }        if (heightMode == MeasureSpec.EXACTLY) {            height=heightSize;        } else if (heightMode == MeasureSpec.AT_MOST) {            height=Math.min(heightSize,radius*2);        } else {            height=windowHeight;        }        setMeasuredDimension(width,height);    }    @Override    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {        super.onLayout(changed, left, top, right, bottom);    }    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)    @Override    protected void onDraw(Canvas canvas) {        super.onDraw(canvas);        paint = new Paint();        paint.setColor(Color.BLACK);        paint.setStyle(Paint.Style.STROKE);        paint.setTextSize(90);        paint.setStrokeWidth(10);        canvas.drawCircle(getWidth()/2,getHeight()/2,300,paint);        paint1 = new Paint();        paint1.setColor(Color.GRAY);        canvas.drawCircle(getWidth() / 2, getHeight() / 2, ii, paint1);        int i = ii / 3;        canvas.drawText(i+"%",getWidth() / 2-100,getHeight() / 2,paint);        detector = new GestureDetector(new MyGestureDetector());            setOnTouchListener(new OnTouchListener() {                @Override                public boolean onTouch(View v, MotionEvent event) {                    return detector.onTouchEvent(event);                }            });}    public class MyGestureDetector extends GestureDetector.SimpleOnGestureListener{        @Override        public boolean onDoubleTap(MotionEvent e) {            return super.onDoubleTap(e);        }        @Override        public boolean onSingleTapConfirmed(MotionEvent e) {            singleTapThread = new SingleTapThread();            getHandler().postDelayed(singleTapThread, 100);            return super.onSingleTapConfirmed(e);        }    }    private class SingleTapThread implements Runnable {        @Override        public void run() {            if (ii < 300) {            invalidate();            getHandler().postDelayed(singleTapThread, 100);            ii = ii + 1;//            } else {//                getHandler().removeCallbacks(singleTapThread);            }        }    }    @Override    public boolean onTouchEvent(MotionEvent event) {        //获取当前手指的坐标        int currentX = (int) event.getX();        int currentY = (int) event.getY();        switch (event.getAction()) {            case MotionEvent.ACTION_DOWN:                lastX = currentX;                lastY = currentY;                break;            case MotionEvent.ACTION_MOVE:                //获取当前偏移的坐标                int biasX = currentX - lastX;                int biasY = currentY - lastY;                //重写layout方法改变控件所在屏幕的位置                layout(getLeft()+biasX, getTop()+biasY, getRight()+biasX, getBottom()+biasY);                break;        }        return true;    }}
阅读全文
0 0