android 程序中选择图片的代码

private void openPictures() {Intent intent = new Intent();/*Open the page of select pictures and set the type to image*/intent.setType("image/*");intent.setAction(Intent.ACTION_GET_CONTENT);startActivityForResult(intent, REQ_CODE_PICTURES);}

这段代码可以调用手机的图库，浏览图片，选择一张图片之后，会回到当前activity 会调用到onActivityResult 方法，

返回的是一个图片的Uri

protected void onActivityResult(int requestCode, int resultCode, Intent data) {    if(resultCode == RESULT_OK) {    switch(requestCode) {    case REQ_CODE_CAMERA:    uploadImage(photoTemp);    break;    case REQ_CODE_PICTURES:    Uri uri = data.getData();    ContentResolver cr = this.getContentResolver();    //get the physical path of the image    Cursor c = cr.query(uri, null, null, null, null);    c.moveToFirst();    photoTemp = c.getString(c.getColumnIndex("_data"));    uploadImage(photoTemp);    break;    default:    break;    };    }super.onActivityResult(requestCode, resultCode, data);}

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