ondrow

最新推荐文章于 2020-09-14 21:34:27 发布
原创最新推荐文章于 2020-09-14 21:34:27 发布 · 961 阅读
CC 4.0 BY-SA版权
文章标签：
package com.carit.radioplayer;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;

public class MarkFaceView extends View {
	private Paint mPaint;
	public static float mFrequencyNum;
	private static final int FM_X_VALUE = 20;
	private static final int FM_Y_VALUE = 1675;
	private static final float AM_X_VALUE = (float) 0.4;
	private static final int AM_Y_VALUE = 174;
	private static final int POINTER_WIDTH = 3;
	private static final int POINTER_HEIGHT = 180;
	private boolean mIsAM;
    private float mRealNum;
    private boolean mIsInTouch;
	public MarkFaceView(Context context) {
		super(context);
	}

	public MarkFaceView(Context context, AttributeSet attrs) {
		super(context, attrs);
		mPaint = new Paint();
		// setBackgroundResource(R.drawable.markface);
	}

	public MarkFaceView(Context context, AttributeSet attrs, int defStyle) {
		super(context, attrs, defStyle);
	}

	@Override
	protected void onDraw(Canvas canvas) {
		Drawable myImage = getContext().getResources().getDrawable(
				R.drawable.markface);
		myImage.setBounds(0, 0, myImage.getIntrinsicWidth(),
				myImage.getIntrinsicHeight());
		myImage.draw(canvas);
		mPaint.setColor(Color.parseColor("#808080"));
		mPaint.setTextSize(15);
		mPaint.setAntiAlias(true);
		if (mIsAM) {
			if(!mIsInTouch){
			mRealNum = mFrequencyNum * AM_X_VALUE - AM_Y_VALUE
					+ POINTER_WIDTH;
			}
			canvas.drawText("500", 18, 160, mPaint);
			canvas.drawText("750", 115, 160, mPaint);
			canvas.drawText("1000", 212, 160, mPaint);
			canvas.drawText("1250", 312, 160, mPaint);
			canvas.drawText("1500", 412, 160, mPaint);
			canvas.drawText("1750", 512, 160, mPaint);
		} else {
			if(!mIsInTouch){
			mRealNum = mFrequencyNum * FM_X_VALUE - FM_Y_VALUE
					+ POINTER_WIDTH;
			}
			canvas.drawText("85", 18, 160, mPaint);
			canvas.drawText("90", 118, 160, mPaint);
			canvas.drawText("95", 218, 160, mPaint);
			canvas.drawText("100", 315, 160, mPaint);
			canvas.drawText("105", 415, 160, mPaint);
			canvas.drawText("110", 515, 160, mPaint);
		}
		mPaint.setColor(Color.parseColor("#D42244"));
		canvas.drawRect(mRealNum - POINTER_WIDTH, 0, mRealNum,
				POINTER_HEIGHT, mPaint);
		mPaint.setColor(android.R.color.black);
		mPaint.setAlpha(80);
		canvas.drawLine(mRealNum, 0, mRealNum, POINTER_HEIGHT, mPaint);
		mPaint.setAlpha(50);
		canvas.drawLine(mRealNum + 1, 0, mRealNum + 1, POINTER_HEIGHT,
				mPaint);
		mPaint.setAlpha(10);
		canvas.drawLine(mRealNum + 2, 0, mRealNum + 2, POINTER_HEIGHT,
				mPaint);
		// super.onDraw(canvas);
	}

	public boolean ismIsAM() {
		return mIsAM;
	}

	public void setmIsAM(boolean mIsAM) {
		this.mIsAM = mIsAM;
	}

	@Override
	public boolean onTouchEvent(MotionEvent event) {
		final int action = event.getAction();

		switch (action & MotionEvent.ACTION_MASK) {
		case MotionEvent.ACTION_DOWN:
			mIsInTouch = true;
			break;
		case MotionEvent.ACTION_MOVE:
			mRealNum = event.getX()+POINTER_WIDTH;
			short tmp_frequency;
			if(!mIsAM)
				tmp_frequency = (short)(((event.getX()+FM_Y_VALUE)/FM_X_VALUE)*100);
			else
				tmp_frequency = (short)((event.getX()+AM_Y_VALUE)/AM_X_VALUE);
			RadioActivity.setFrequencyNumber(tmp_frequency,false);
			postInvalidate();
			break;
		case MotionEvent.ACTION_UP:
			short t_frequency;
			if(!mIsAM)
				tmp_frequency = (short)(((event.getX()+FM_Y_VALUE)/FM_X_VALUE)*100);
			else
				tmp_frequency = (short)((event.getX()+AM_Y_VALUE)/AM_X_VALUE);
			mIsInTouch = false;
			RadioActivity.setFrequencyNumber(tmp_frequency,true);
			//postInvalidate();
			break;
		}
		return true;
	}

}