How can I display image in Android Application

问题

I want to display Image in my Android application in specific size. How can I do it? Please guide me? And one more thing I want that image from SD card. So please Help me.

Thanks in advance.

回答1:

First you need to create an imageview.

ImageView imageView = new ImageView(getApplicationContext());

Create layout param to add imageview on layout

LayoutParams lp = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

Then get your image path

String path = Environment.getExternalStorageDirectory() + "/your folder name/image_name.bmp";

Set your image on ImageView

Bitmap image = BitmapFactory.decodeFile(path);
imageView.setImageBitmap(image);

Fetch your layout on which you want to add

RelativeLayout rl = (RelativeLayout) findViewById(R.id.relativeLayout1);

Add your view to the layout

rl.addView(imageView, lp);

回答2:

You can use the below code snippet to load image in imageview .

ImageView iv = new ImageView(this);
iv.setImageUri(Uri.parse("file://loaction"));

you can use the above sample method to display image in image from sd card. Even dont hard code the file path use Environment.getExternalEnvironment() to get path.

Environment.getExternalStorageDirectory() + "/folder/filename.ext";

if no internal folder use below

 Environment.getExternalStorageDirectory() + "/filename.ext";

来源：https://stackoverflow.com/questions/10309556/how-can-i-display-image-in-android-application