How to make ImageView using java in android?

Question

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ImageView img=new ImageView(this);
img.setImageResource(R.drawable.img);
img.setScaleType(ImageView.ScaleType(CENTER_CROP));
setContentView(img) }

I want to set the size of image view in Java and I could not find the syntax working.

Why can't you use a regular layout file?

Phantômaxx
– Phantômaxx

2017-01-09 09:03:45 +00:00
Commented Jan 9, 2017 at 9:03 — Phantômaxx
– Phantômaxx, Commented Jan 9, 2017 at 9:03
see my code and u can add height and width also.

W4R10CK
– W4R10CK

2017-01-09 11:26:23 +00:00
Commented Jan 9, 2017 at 11:26 — W4R10CK
– W4R10CK, Commented Jan 9, 2017 at 11:26

W4R10CK · Accepted Answer · 2017-01-09 09:56:40Z

2

Try code(edit as per your view names):

@Override
    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    LinearLayout picLL = new LinearLayout(this);
    picLL.layout(0, 0, 100, 100);
    picLL.setLayoutParams(new LayoutParams(100, 100));
    picLL.setOrientation(LinearLayout.HORIZONTAL);
    ImageView myImage = new ImageView(this);
    myImage.setImageResource(R.drawable.ic_launcher);
    picLL.addView(myImage);
    setContentView(picLL);
}

And set height or width:

myImageView..getLayoutParams().height = your_size_value;
myImageView..getLayoutParams().width = your_size_value;

edited Jan 9, 2017 at 9:56

answered Jan 9, 2017 at 9:08

W4R10CK

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Comments

W4R10CK · Accepted Answer · 2017-01-09 09:44:04Z

0

 <ImageView
    android:id="@+id/imageView1"
    android:layout_margin="20dp"
    android:src="@drawable/stop" 
    android:layout_width="50dp"
    android:layout_height="50dp"/>

change width and height attribute with your values.

edited Jan 9, 2017 at 9:44

W4R10CK

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answered Jan 9, 2017 at 9:10

KpAbhijith

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5 Comments

W4R10CK Over a year ago

I must say, the question says to create ImageView using java not using XML. Try to update your question.

KpAbhijith Over a year ago

ImageView image = (ImageView) findViewById(R.id.test_image); Bitmap bMap = BitmapFactory.decodeFile("/sdcard/test2.png"); image.setImageBitmap(bMap);

KpAbhijith Over a year ago

If we need to resize a Bitmap, we can call the createScaledBitmap method to resize any bitmap to our desired width and height:

KpAbhijith Over a year ago

// Load a bitmap from the drawable folder Bitmap bMap = BitmapFactory.decodeResource(getResources(), R.drawable.my_image); // Resize the bitmap to 150x100 (width x height) Bitmap bMapScaled = Bitmap.createScaledBitmap(bMap, 150, 100, true); // Loads the resized Bitmap into an ImageView ImageView image = (ImageView) findViewById(R.id.test_image); image.setImageBitmap(bMapScaled);

halfer Over a year ago

@KpAbhijith: if you have more code to offer that is relevant to the question, please put it in your answer in a formatted block. It is nearly unreadable in comments, and may be deleted there. Once you have updated the question, please delete the comments to keep things tidy. Thank you.

Rajakumar · Accepted Answer · 2017-01-09 10:02:50Z

0

//Linear layout setting here

LinearLayout linearLayout= new LinearLayout(this);
linearLayout.setOrientation(LinearLayout.VERTICAL);
linearLayout.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));
ImageView imageView = new ImageView(this);
imageView.setImageResource(R.drawable.bull);
imageView.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, 
LayoutParams.WRAP_CONTENT));
linearLayout.addView(imageView);
setContentView(linearLayout);

answered Jan 9, 2017 at 10:02

Rajakumar

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