[android-developers] Re: Android circular seek bar

On 13 Gru, 10:21, djhacktor <deepanshcri...@gmail.com> wrote:
> have nt worked on it  i started today and lots of ui component are left so
> it will great help if you can provide right resource this is what i need Reference
> :https://lh4.ggpht.com/9qL2sQi6XQYBY2pvgsPyObYS3UM42kRw64ve-GacU3jqW0X...
>
>

you can start with something like this:

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.ColorFilter;
import android.graphics.Paint;
import android.graphics.Paint.Style;
import android.graphics.PixelFormat;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.util.Log;
import android.widget.SeekBar;

public class CSB extends SeekBar {

public CSB(Context context, AttributeSet attrs) {
super(context, attrs);
Drawable d = new CSBDrawable();
setProgressDrawable(d);
setProgress(33);
}

class CSBDrawable extends Drawable {

private final static String TAG = "CSB.CSBDrawable";
private Paint mPaint;
private RectF mRect;

public CSBDrawable() {
mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
mPaint.setStyle(Style.STROKE);
mPaint.setStrokeWidth(5);
mPaint.setColor(0xffeeeeee);
mRect = new RectF();
}

@Override
protected void onBoundsChange(Rect bounds) {
super.onBoundsChange(bounds);
Log.d(TAG, "onBoundsChange " + bounds);
mRect.set(bounds);
int w2 = bounds.width() / 2;
int h2 = bounds.height() / 2;
if (w2 > h2) {
mRect.inset(w2 - h2, 0);
} else {
mRect.inset(0, h2 - w2);
}
}

@Override
public void draw(Canvas canvas) {
float angle = 270 * getLevel() / 10000;
canvas.drawArc(mRect, -270 + 45, angle, false, mPaint);

canvas.save();
Rect b = getBounds();
canvas.rotate(angle - 45, b.centerX(), b.centerY());
canvas.drawCircle(b.centerX() - mRect.width() / 2, mRect.height() /
2, 10, mPaint);
canvas.restore();
}

@Override
public void setAlpha(int alpha) {
}

@Override
public void setColorFilter(ColorFilter cf) {
}

@Override
public int getOpacity() {
return PixelFormat.TRANSLUCENT;
}
}
}

pskink

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