Monday, April 30, 2012

Select an Image from gallery in ANDROID and show it in an ImageView


Select an Image from gallery in ANDROID and show it in an ImageView.




Hi all
In this tutorial I will show you how to get an image from your phone gallery and show it in an imageview.
Here we use intents to open up the image gallery and get the image URI.
Here I am setting the image type as “image” to get only the images.
And on onActivityResult if the result is OK, then get the data using getData() function and converting the imageURI to the stringPath.
Then show the image in the imageview using setImageURI.
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package pack.GetImage;
 
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
 
public class GetImageActivity extends Activity {
 
    private static final int SELECT_PICTURE = 1;
 
    private String selectedImagePath;
    private ImageView img;
 
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
 
        img = (ImageView)findViewById(R.id.ImageView01);
 
        ((Button) findViewById(R.id.Button01))
                .setOnClickListener(new OnClickListener() {
                    public void onClick(View arg0) {
                        Intent intent = new Intent();
                        intent.setType("image/*");
                        intent.setAction(Intent.ACTION_GET_CONTENT);
                        startActivityForResult(Intent.createChooser(intent,"Select Picture"), SELECT_PICTURE);
                    }
                });
    }
 
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode == RESULT_OK) {
            if (requestCode == SELECT_PICTURE) {
                Uri selectedImageUri = data.getData();
                selectedImagePath = getPath(selectedImageUri);
                System.out.println("Image Path : " + selectedImagePath);
                img.setImageURI(selectedImageUri);
            }
        }
    }
 
    public String getPath(Uri uri) {
        String[] projection = { MediaStore.Images.Media.DATA };
        Cursor cursor = managedQuery(uri, projection, null, null, null);
        int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        return cursor.getString(column_index);
    }
}
Here is the main.xml file
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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/hello"
    />
<Button android:text="Browse gallery"
    android:id="@+id/Button01"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">
</Button>
<ImageView android:id="@+id/ImageView01"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">
</ImageView>
</LinearLayout>

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