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我想打開我的相機應用程序,並獲取圖像到imageview.Even當我使用wrapview內容的imageview的寬度和高度,它顯示爲一個縮略圖。我已經看到了幾個職位的大小調整,我不知道哪一個使用。問題是,我想要的圖像,因爲它是,它的全尺寸,而不是一個縮略圖。以下是我有什麼嘗試:從相機意圖獲取位圖圖像作爲縮略圖。如何使其更大
inside a button click event:
Intent cameraIntent = new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, 111);
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
if (resultCode == RESULT_OK && requestCode == 111) {
Bitmap photo = (Bitmap) data.getExtras().get("data");
preview.setImageBitmap(photo);
}
我試圖顯示圖像作爲imageview.The問題是我想要一個更大的image.When我嘗試改變的ImageView的widht和高度300像素和150像素內的預覽,我得到一個空白。
我如何獲得更大的圖像?
編輯:
Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
File file = new File(Environment.getExternalStorageDirectory()+File.separator + "image.jpg");
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(file));
startActivityForResult(intent, CAPTURE_IMAGE_FULLSIZE_ACTIVITY_REQUEST_CODE);
在對活動的結果:
if (requestCode == CAPTURE_IMAGE_FULLSIZE_ACTIVITY_REQUEST_CODE)
{
//Get our saved file into a bitmap object:
File file = new File(Environment.getExternalStorageDirectory()+File.separator + "image.jpg");
Bitmap bitmap = decodeSampledBitmapFromFile(file.getAbsolutePath(), 1000, 700);
preview.setImageBitmap(bitmap);
}
public static Bitmap decodeSampledBitmapFromFile(String path, int reqWidth, int reqHeight)
{ // BEST QUALITY MATCH
//First decode with inJustDecodeBounds=true to check dimensions
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(path, options);
// Calculate inSampleSize, Raw height and width of image
final int height = options.outHeight;
final int width = options.outWidth;
options.inPreferredConfig = Bitmap.Config.RGB_565;
int inSampleSize = 1;
if (height > reqHeight)
{
inSampleSize = Math.round((float)height/(float)reqHeight);
}
int expectedWidth = width/inSampleSize;
if (expectedWidth > reqWidth)
{
//if(Math.round((float)width/(float)reqWidth) > inSampleSize) // If bigger SampSize..
inSampleSize = Math.round((float)width/(float)reqWidth);
}
options.inSampleSize = inSampleSize;
// Decode bitmap with inSampleSize set
options.inJustDecodeBounds = false;
return BitmapFactory.decodeFile(path, options);
}
但我仍然會得到相同的尺寸。
我已經試過了,但現在我想增加size.So我做了一些changes.REFER編輯 – 2014-11-06 12:32:34