CODEWITHSUNDEEP
androidandroid-linearlayout
Krisztian
Krisztian

Reputation: 477

Match layout width to height

I have a LinearLayout, I set the width to match_parent. How can I match the height to the width to get a square layout?

<LinearLayout
    android:id="@+id/linearLayout"
    android:orientation="horizontal"
    android:layout_margin="20dp"
    android:layout_width="match_parent"
    android:layout_height="2dp"
    android:gravity="center"
    android:background="@drawable/card_layout"> 
</LinearLayout>

Upvotes: 0

Views: 697

Answers (4)

Yakiv Mospan
Yakiv Mospan

Reputation: 8224

To achive this you need to get width of your @+id/linearLayout programatically

LinearLayout mLinearLayout=(LinearLayout)findViewById(R.id.linearLayout);
int screenWidth = mContext.getResources().getDisplayMetrics().widthPixels;
int screenHeight = mContext.getResources().getDisplayMetrics().widthPixels;

mLinearLayout.measure(screenWidth, screenHeight);
int layoutWidth = mLinearLayout.getMeasuredWidth();

And then set width values as height

ViewGroup.LayoutParams params = mLinearLayout.getLayoutParams();
params.height = layoutWidth;
mLinearLayout.setLayoutParams(params);

You can also do this like @balaji koduri showed in OnGlobalLayoutListener

Upvotes: 2

grig
grig

Reputation: 847

Make your custom layout with overrided onMeasure

@Override
protected void onMeasure (int widthMeasureSpec, int heightMeasureSpec) {
    super.onMeasure(widthMeasureSpec, widthMeasureSpec);
}

Upvotes: 0

yuva ツ
yuva ツ

Reputation: 3703

Do it programmatically -

LinearLayout mLinearLayout=(LinearLayout)findViewById(R.id.linearLayout);
ViewGroup.LayoutParams params = mDialogLayout.getLayoutParams();
params.width = mContext.getResources().getDisplayMetrics().widthPixels;
params.height = mContext.getResources().getDisplayMetrics().widthPixels;

if you want other size -

params.width = 200;
params.height = 200;

Upvotes: 0

balaji koduri
balaji koduri

Reputation: 1321

try this:

final LinearLayout layout = (LinearLayout) findViewById(R.id.linearLayout);

        layout.getViewTreeObserver().addOnGlobalLayoutListener(
                new OnGlobalLayoutListener() {
                    @Override
                    public void onGlobalLayout() {
                        LayoutParams params = (LayoutParams) layout
                                .getLayoutParams();
                        params.height = params.width;
                        layout.setLayoutParams(params);
                        layout.getViewTreeObserver().addOnGlobalLayoutListener(
                                null);
                    }
                });

Upvotes: 0

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