Скачать или смотреть How to programmatically resize ImageView (setLayoutParams) to match parent in layout of Android App?

This video shows the code to resize the ImageView by setting its layout parameters (width and height) to match parent. In this method it toggles the size between the match_parent to the initial size set by the user. In this example it uses Constraint Layout, however, same concept can be used for other layouts such as Frame Layout, Relative Layout, etc.


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Complete source code and other details/ steps of this video are posted in the below link:
https://programmerworld.co/android/ho...


However, the main Java code is copied below also for reference:


package com.programmerworld.resizeimageview;

import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;

import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;

import androidx.appcompat.app.AppCompatActivity;
import androidx.constraintlayout.widget.ConstraintLayout;

public class MainActivity extends AppCompatActivity {
private ImageView imageView;
private int height, width;
private boolean booleanMATCH_PARENT = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

imageView = findViewById(R.id.imageView);
}
public void OnClickImageView(View view){
if (booleanMATCH_PARENT){
booleanMATCH_PARENT = false;
imageView.setLayoutParams(new ConstraintLayout.LayoutParams(width, height));
}else {
height = imageView.getHeight();
width = imageView.getWidth();
booleanMATCH_PARENT = true;
imageView.setLayoutParams(new ConstraintLayout.LayoutParams(MATCH_PARENT, MATCH_PARENT));
}
}
}

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