conversion from dp to pixel wrong

Question

For some odd reason, I could n't get the proper output from the below function, I know I did some silly mistake but not sure though,

public static int convertDpToPixel(int dp, Context context){
       float px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,dp,context.getResources().getDisplayMetrics());
        return Math.round(px);
    }

and i am calling the function as - gen_function.convertDpToPixel(R.dimen.button_left_right_margin,this);

The output is a huge number which is not expected, any help much appreciated.

Use `public static float convertDpToPixel(float dp, Context context) { Resources resources = context.getResources(); DisplayMetrics metrics = resources.getDisplayMetrics(); float px = dp * ((float) metrics.densityDpi / DisplayMetrics.DENSITY_DEFAULT); return px; }` — Piyush, Feb 09 '18 at 05:25

score 7 · Accepted Answer · edited Feb 09 '18 at 05:48

7

Use this

int pixels = getResources().getDimensionPixelSize(R.dimen.button_left_right_margin);

edited Feb 09 '18 at 05:48

Gowthaman M

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answered Feb 09 '18 at 05:26

Arpan Sarkar

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score 3 · Answer 2 · answered Feb 09 '18 at 05:30

Hope it will help you :-

public static int convertDpIntoPx(Context mContext, float yourdpmeasure) {
    if (mContext == null) {
        return 0;
    }
    Resources r = mContext.getResources();
    int px = (int) TypedValue
            .applyDimension(TypedValue.COMPLEX_UNIT_DIP, yourdpmeasure, r.getDisplayMetrics());
    return px;
}

For more detail

score 2 · Answer 3 · edited Feb 09 '18 at 06:55

2

Hope this will help you.

public static int dpToPx(int dp) {

DisplayMetrics displayMetrics = BaseApplication.appContext.getResources().getDisplayMetrics();
 int px = Math.round(dp * (displayMetrics.xdpi / DisplayMetrics.DENSITY_DEFAULT));

return px;

 }

edited Feb 09 '18 at 06:55

Prags

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answered Feb 09 '18 at 05:37

Chetan Patel

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conversion from dp to pixel wrong

3 Answers3