Choose a Picture : ImageView « UI « Android

1. Android
2. UI
3. ImageView

Choose a Picture

   

package app.test;

import java.io.FileNotFoundException;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.Display;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;

public class Test extends Activity implements OnClickListener {
  ImageView chosenImageView;
  Button choosePicture;
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    chosenImageView = (ImageView) this.findViewById(R.id.ChosenImageView);
    choosePicture = (Button) this.findViewById(R.id.ChoosePictureButton);
    choosePicture.setOnClickListener(this);
  }
  public void onClick(View v) {
    Intent choosePictureIntent = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
    startActivityForResult(choosePictureIntent, 0);
  }
  protected void onActivityResult(int requestCode, int resultCode,Intent intent) {
    super.onActivityResult(requestCode, resultCode, intent);
    if (resultCode == RESULT_OK) {
      Uri imageFileUri = intent.getData();
      Display currentDisplay = getWindowManager().getDefaultDisplay();
      int dw = currentDisplay.getWidth();
      int dh = currentDisplay.getHeight() / 2 - 100;
      try {
        BitmapFactory.Options bmpFactoryOptions = new BitmapFactory.Options();
        bmpFactoryOptions.inJustDecodeBounds = true;
        Bitmap bmp = BitmapFactory.decodeStream(getContentResolver().openInputStream(imageFileUri), null, bmpFactoryOptions);
        bmpFactoryOptions.inSampleSize = 2;
        bmpFactoryOptions.inJustDecodeBounds = false;
        bmp = BitmapFactory.decodeStream(getContentResolver().openInputStream(
                imageFileUri), null, bmpFactoryOptions);
        chosenImageView.setImageBitmap(bmp);
      } catch (FileNotFoundException e) {
        Log.v("ERROR", e.toString());
      }
    }
  }
}
//main.xml

<?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"
    >
<Button
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="Choose Picture" 
    android:id="@+id/ChoosePictureButton"/>
<ImageView android:layout_width="wrap_content" 
           android:layout_height="wrap_content" 
           android:id="@+id/ChosenImageView"></ImageView>
</LinearLayout>

   
    
    
  

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