move View by Layout Parameters - Android User Interface

Android examples for User Interface:Layout

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  4. Layout

Description

move View by Layout Parameters

Demo Code


//package com.java2s;

import android.view.View;
import android.widget.RelativeLayout.LayoutParams;

public class Main {
    public static LayoutParams moveFrom(View v, LayoutParams params,
            int leftRight, int upDown) {
        params = cloneParams(params);/*w ww.j ava  2  s . c o  m*/
        params.leftMargin += leftRight;
        params.rightMargin -= leftRight;
        params.topMargin -= upDown;
        params.bottomMargin += upDown;
        v.setLayoutParams(params);

        return params;
    }

    public static LayoutParams cloneParams(LayoutParams params) {
        LayoutParams copy = new LayoutParams(params.width, params.height);
        copy.leftMargin = params.leftMargin;
        copy.topMargin = params.topMargin;
        copy.rightMargin = params.rightMargin;
        copy.bottomMargin = params.bottomMargin;
        int[] rules = params.getRules();
        for (int i = 0; i < rules.length; i++) {
            copy.addRule(i, rules[i]);
        }
        copy.setMarginStart(params.getMarginStart());
        copy.setMarginEnd(params.getMarginEnd());

        return copy;
    }
}

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