定义自己的仪表板DashBoard - -kankanstyle

既然做了奶站软件，需要使用的仪表板，显示质量数据

public class MDashboard extends ImageView {

private Bitmap mPointerBitmap;





private int max = 100;

private int progress = 0;





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public MDashboard(Context context) {

super(context);

init();

}





public MDashboard(Context context, AttributeSet attrs) {

super(context, attrs);

init();

}





public MDashboard(Context context, AttributeSet attrs, int defStyle) {

super(context, attrs, defStyle);

init();

}

    //初始化布局   Initializes layout

private void init() {

setScaleType(ScaleType.FIT_CENTER);

//设置表盘图片

setBackgroundDrawableId(R.drawable.base__view_dashboard_bg);

//设置表针图片Set the dial pictures

setPointerDrawableId(R.drawable.base__view_dashboard);

  //设置进度，与当前进度Sets the progress and current progress

setMax(100);

setProgress(0);

}





//设置仪表盘背景Set the dashboard background

public void setBackgroundDrawableId(int id) {

setImageResource(id);

invalidate();

}

    //设置指针的

public void setPointerDrawableId(int id) {

mPointerBitmap = BitmapFactory.decodeResource(getResources(), id);

invalidate();

}





public void setMax(int max) {

this.max = max;

invalidate();

}





public int getMax() {

return max;

}





public void setProgress(int progress) {

this.progress = progress;

//刷新进度

invalidate();

}





public int getProgress() {

return progress;

}





@SuppressLint("DrawAllocation")

@Override

protected void onDraw(Canvas canvas) {

super.onDraw(canvas);

int width = this.getWidth();

int height = this.getHeight();

int rotate = (int) ((float) ((float) progress / (float) max) * (float) 180);

Matrix m = new Matrix();

m.preRotate(rotate);

Bitmap bitmap = Bitmap.createBitmap(mPointerBitmap, 0, 0,

mPointerBitmap.getWidth(), mPointerBitmap.getHeight(), m, true);

int dx = width / 2;

int dy = height - bitmap.getHeight();

if (rotate == 90) {

dx -= bitmap.getWidth() / 2;

} else if (rotate < 90) {

dx -= bitmap.getWidth();

float f = ((float) rotate / (float) 180)

* (float) mPointerBitmap.getHeight() / 2;

dx += f;

} else if (rotate > 90) {

float f = ((float) rotate / (float) 180)

* (float) mPointerBitmap.getHeight() / 2;

dx -= f;

}

canvas.drawBitmap(bitmap, dx, dy, null);

}

}

csdn下载   http://download.csdn.net/download/kan1kan5/7816367

免积分下载 https://github.com/kankanV/KankanDashBoard

整个代码

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