get Scaled X/Y , Scale X/Y - Android android.widget

Android examples for android.widget:RelativeLayout

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  4. RelativeLayout

Description

get Scaled X/Y , Scale X/Y

Demo Code



import android.content.Context;
import android.content.Intent;
import android.widget.RelativeLayout.LayoutParams;

public class ActivityUtils {
    public static int SCREEN_WIDTH = 800;
    public static int SCREEN_HEIGHT = 480;
    public static int SCREEN_DPI = 240;
    public static int SCALE_BASE_X = 800;
    public static int SCALE_BASE_Y = 480;
    public static int SCALE_BASE_DPI = 240;


    public static void scaleInit(int scrWidth, int scrHeight, int scrDPI,
            int baseWidth, int baseHeight, int baseDPI) {
        SCREEN_WIDTH = scrWidth;/*w  w w .  j av  a2 s. c o m*/
        SCREEN_HEIGHT = scrHeight;
        SCREEN_DPI = scrDPI;
        SCALE_BASE_X = baseWidth;
        SCALE_BASE_Y = baseHeight;
        SCALE_BASE_DPI = baseDPI;

    }

    public static float getScaleX() {
        float scaleX = 1.0f * SCREEN_WIDTH / SCALE_BASE_X;
        return scaleX;
    }

    public static float getScaleY() {
        float scaleX = 1.0f * SCREEN_HEIGHT / SCALE_BASE_Y;
        return scaleX;
    }

    public static LayoutParams getLayoutParams(int width, int height) {
        return new LayoutParams((int) (width * getScaleX()),
                (int) (height * getScaleY()));
    }

    public static int scaleX(int x) {
        return (x * SCREEN_WIDTH / SCALE_BASE_X);
    }

    public static int scaleXWithDPI(int x) {
        return (x * SCREEN_WIDTH * SCALE_BASE_DPI / SCALE_BASE_X / SCREEN_DPI);
    }

    public static int scaleY(int y) {
        return (y * SCREEN_HEIGHT / SCALE_BASE_Y);
    }

    public static int scaleYWithDPI(int y) {
        return (y * SCREEN_HEIGHT * SCALE_BASE_DPI / SCALE_BASE_Y / SCREEN_DPI);
    }
}

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