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Add layout util file to organize layout utilities

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neslihanturan 2019-10-08 17:51:00 +03:00
parent f65ca0387a
commit 5c57939245
1 changed files with 52 additions and 0 deletions
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app/src/main/java/fr/free/nrw/commons/utils/LayoutUtils.java Normal file
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package fr.free.nrw.commons.utils;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
public class LayoutUtils {
/**
* Can be used for keeping aspect radios suggested by material guidelines. See:
* https://material.io/design/layout/spacing-methods.html#containers-aspect-ratios
* In some cases we don't know exact width, for such cases this method measures
* width and sets height by multiplying the width with height.
* @param rate Aspect ratios, ie 1 for 1:1. (width * rate = height)
* @param view view to change height
*/
public static void setLayoutHeightAllignedToWidth(double rate, View view) {
ViewTreeObserver vto = view.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
view.getViewTreeObserver().removeOnGlobalLayoutListener(this);
ViewGroup.LayoutParams layoutParams = view.getLayoutParams();
Log.d("deneme7","heig:"+layoutParams.height+"weig:"+view.getWidth() * rate);
layoutParams.height = (int) (view.getWidth() * rate);
view.setLayoutParams(layoutParams);
}
});
}
/**
* Can be used for keeping aspect radios suggested by material guidelines. See:
* https://material.io/design/layout/spacing-methods.html#containers-aspect-ratios
* In some cases we don't know exact height, for such cases this method measures
* height and sets width by multiplying the width with height.
* @param rate Aspect ratios, ie 1 for 1:1. (height * rate = width)
* @param view view to change width
*/
public static void setLayoutWidthAllignedToHeight(double rate, View view) {
ViewTreeObserver vto = view.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
view.getViewTreeObserver().removeOnGlobalLayoutListener(this);
ViewGroup.LayoutParams layoutParams = view.getLayoutParams();
layoutParams.width = (int) (view.getHeight() * rate);
view.setLayoutParams(layoutParams);
}
});
}
}