Adding ImageView to the Layout programmatically

Question

I want to create images which will go down from the upper part of the screen.

For up to today I have this:

ImageView mario = (ImageView) findViewById(R.id.mario);
TranslateAnimation anim = new TranslateAnimation(0f, 0f, 0, 400);
anim.setInterpolator(new LinearInterpolator());
anim.setRepeatCount(Animation.INFINITE);
anim.setDuration(800);
mario.startAnimation(anim);

The problems are that I have to set the imageview on the xml file on the layout and this code creates just 1 picture only.

I want to program the app to create a couple of images (for example in a loop) in the upper part of the screen and have them drop down the screen. (here I use TranslateAnimation here). I found something like this:

ImageView mario = (ImageView) findViewById(R.drawable.mario);

But I don't know how to set the position of the ImageView which isn't in the xml file (is it possible?). I though about creating LinearLayout and add it to the ImageView. But how to add the linearlayout to the existing layout?

Thanks in advance :)

codeMagic · Accepted Answer · 2013-02-26 21:39:31Z

10

You can create a layout with something like

View view = (View) findViewById(R.layout.current_layout); //the layout you set in `setContentView()`
LinearLayout picLL = new LinearLayout(CurrentActivity.this);
picLL.layout(0, 0, 100, 0);
picLL.setLayoutParams(new LayoutParams(1000, 60));
picLL.setOrientation(LinearLayout.HORIZONTAL);
((ViewGroup) view).addView(picLL);

What parameters you pass in layout() are obviously going to depend on what you want. Then you can create separate Views to add to the Layout you just created. But I highly advise reading through the docs to understand what all can be done here.

ViewGroup

View

Edit

ImageView myImage = new ImageView(this);
picLL.addView(myImage);
//set attributes for myImage;

edited Feb 26, 2013 at 21:39

answered Feb 26, 2013 at 19:59

codeMagic

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2 Comments

Ganjira Over a year ago

The last sentence ((ViewGroup) view).addView(picLL); doesn't work, because of: "Type ViewGroup cannot be resolved to a type". Also why we don't use the view? And the last question - how to add the ImageView to this view?

codeMagic Over a year ago

The ViewGroup allows you to add additionally items to that View. You can try just View but I don't believe it will work to add things to it but I will check into it when I get a few more minutes. I will edit my answer to add the ImageView to the layout

user8626261 · Accepted Answer · 2017-09-19 12:49:04Z

5

Using following code you can add image dynamically

public class MainActivity extends Activity {

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 ImageView imageview = new ImageView(MainActivity.this);
 RelativeLayout relativelayout = (RelativeLayout)findViewById(R.id.relativeLayout);
 LinearLayout.LayoutParams params = new LinearLayout
 .LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);

 // Add image path from drawable folder.
 imageview.setImageResource(R.drawable.demo_new_image);
 imageview.setLayoutParams(params); 
 relativelayout.addView(imageview); 

 }
}

answered Sep 19, 2017 at 12:49

user8626261

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