android 获取拍照图片

1.获取拍照图片的路径

  从照相机Activity返回的时候，会带一个名为data的Bitmap对象。是照片的缩略图。

  如果加上如下代码， 则不会返回名为data的对象。但是会按照指定的路径保存原始图片

intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri 
        .fromFile(new File(Environment 
                .getExternalStorageDirectory(), "camera.jpg")));

2.获取拍照后的data对象

 Bundle extras = data.getExtras();

Bitmap myBitmap=null;

if(null!=extras){

Log.i("bb","isNull:"+(null==extras));

if(myBitmap!=null){

   myBitmap.recycle();

}

myBitmap = (Bitmap) extras.get("data");

}else{

Uri uri = data.getData();

if (uri != null) { 

myBitmap.recycle();

myBitmap = BitmapFactory.decodeFile(uri.getPath());

}

}

if (myBitmap!=null) {

//ImageView view=new ImageView(mContext);

mImageView.setImageBitmap(myBitmap);

}

3.实例

   private ImageView imageView;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		// Hide the window title.
		requestWindowFeature(Window.FEATURE_NO_TITLE);
		setContentView(R.layout.main);
		imageView = (ImageView) this.findViewById(R.id.preview);
		Button button = (Button) this.findViewById(R.id.cameraButton);
		button.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View v) {
				Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
				intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri
						.fromFile(new File(Environment
								.getExternalStorageDirectory(), "camera.jpg")));
				intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 0);
				startActivityForResult(intent, 0);
			}
		});
	}
	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		if (requestCode == 0 && resultCode == Activity.RESULT_OK) {
			this.imageView.setImageDrawable(Drawable.createFromPath(new File(
					Environment.getExternalStorageDirectory(), "camera.jpg")
					.getAbsolutePath()));
			// for(String s:bundle.keySet()){
			// Log.v("cam.demo", s);
			// }
			Log.v("cam.demo", "====>" + data);
		}
	}
}