我有以下代码:
public void onSuccess(String response) {
Log.i("EOH",response);
Drawable d = null;
Object content=response.getBytes();
InputStream is = (InputStream)content;
d = Drawable.createFromStream(is, "src");
ImageView captcha = (ImageView)findViewById(R.id.imageView2);
captcha.setImageDrawable(d);
}
这是我得到的响应字符串(来自LogCat):
08-12 11:33:52.223:INFO / EOH(10244):PNG
08-12 11:33:52.223:INFO / EOH(10244):08-12 11:33:52.223: INFO / EOH(10244): IHDR d 2 %Wéé IDAThíéSgÇÏÙM²\ R 08-12 11:33:52.223:INFO / EOH(10244):* h =¨xß-¥:Ni}Ñ?ª¯:}¡+ +μ3ötÇàÕ AI#$a7ÙÝd¾H'
£²$8ÝÏ«äÙßîóï{|,²Ê2)英哩,²Ê2)Ë��¦,²
E2)英哩,²@¬dg¡ä< d°BsìJvVHÖpüõÐí°I·XH÷1×ÁJkÅâbQ §3PÅKãôÊp)¬¬{AO°¡0ªÄR¬>MÎý0uýËâ/ |ÖÊÌÊöðèCUWl»CEAC〜¸ÈIVRKþ>wKÑgX]góY¼¢ 12³²Å{ZB型\ o«&安培;0吨]oìŹ¢³ß}§êªYXiêwq;一 08-12 11:33:52.223:INFO / EOH(10244): I}#了Bh +»¹=ÒNF3Ø}-ÞSíëAá¯N]*ô5q·¿^¾0þÅÝW.sÌ$§åÍJ.¦^ïtl;P¸@¸tãOèPr~D 08-12 11:33:52.223: INFO/EOH(10244): fÝÆFÄ ?¸1û��¬¡KÓdMÔÈ)��pìaç~��_Ø@lðU|¸ïkâ²g·\³ .©¤+�� .[kóÙqû¥Ò#Îç¼g2G¥ñË?^j½:}=(cÎCé«d!ÔóÉpºqLPrÞШÎxiÔHòE¾© H#}ÂÀ{ ��tDHýQcÁö¬J¯ÅÝÀÔ¤
TYuÖ*,H_EÕ3μÝ|ïÉkM#Q}Â_¤Ê©%|¤·E,AA&GT;Á4yμÁ^} 30×PU /©RLwDáov] \IaÔIϧÐy|7ÜÖÅ÷4q®#ISD&LT;〜+吨;óF¡Ô%|¤ÄtÐiÆ&gt;一种$ 9;nÏq|øùóçs}Âç¡ä,GtFGènWj½rºlXôóªð½&安培;3qofê 08-12 11:33:52.223:INFO / EOH(10244): IÎY\¤s[6¯klÕÖrqºÊê{*ôÀNǶlâ¨I®!¬© %ÃÝ|/ðþÙýèáÙÃèßq¤*brPýK=S��wÂmAiÔE:wséKϧXÖ-"����GxV;B¨ÙtÚÓÜâ=UJ¤¢½*c{±ä��dM+KQ9UFcô¨<~yòZ*G~6¥UÖJ;n©q��øÌu4SA7ßFRp£½ÆMºl¸5©+CqP£0ª.{Ó3_ÅýSÝgÈüÒ%¤äÊ@%]qÖÛúôiºöÓô!Ñß'ìá>YÞ4ó#!t°pßËøt¦>/i»ý6{s*1ÓÍ÷f¶üÜs¨tËh×dbÅ ´ 46!OtõÈêî))(��ÓeéÂVJ~EK.{y;î4°u lÝâv¯ÅóMÙ×Sǫ̀4Q¢¢&p®M̬Ä_gî§DlwlÙÇíÎ:��³¬·U÷ÇÄ^ôÇ5Ðö49ÉÂtAjeeÕcj��¾WèlXLy)ïÛk.µøÅÀlrNÓu'Éù¬ë.z¦¶?öüN¸MÖä¬EE,^��ÅW½¬¥ZkóßRßwçÛÆå ��J£U¶ÊT£®ëÊ��°9ü4´*NóË 5¶uM;³Ròe|XÑ��è>Õÿ;ßO\JÌ��@[¸CÓµåuºVQÞ_\IÌòª
ŬVÜj¤qÒA'Ý#úÿüóO×uAO4ʼ²Êñ¨ø¡fÖ{ÁeSLY0eÀeSLY0eÀeSLY0eÀe§〜) L1 +IEND®B`
正如您所看到的,我正在尝试将名为“response”的String转换为Drawable对象。麻烦的是,图像始终是空白的!
有谁知道我可以解决这个问题?
非常感谢,
编辑:
这也不起作用;(
@Override
public void onSuccess(String response) {
Log.i("EOH",response);
ByteArrayInputStream bis = new ByteArrayInputStream(response.getBytes());
Bitmap bm=BitmapFactory.decodeStream(bis);
ImageView imgView = (ImageView)findViewById(R.id.imageView2);
imgView.setImageBitmap(bm);
}
答案 0 :(得分:2)
试试这个:
BitmapDrawable drawable = BitmapFactory.decodeFile(response);
如果您不需要它,可以执行以下操作。
Bitmap bm = BitmapFactory.decodeFile(response);
ImageView captcha = (ImageView)findViewById(R.id.imageView2);
captcha.setImageBitmap(bm);
<强> EDITED 强>
对于在线文件,您可以使用:
BitmapFactory.decodeStream(is)
答案 1 :(得分:0)
这是我正在使用的完整功能(不起作用......):
private void captchaLoad() {
AsyncHttpClient myClient = new AsyncHttpClient();
PersistentCookieStore myCookieStore = new PersistentCookieStore(context);
myClient.setCookieStore(myCookieStore);
RequestParams params = new RequestParams();
myClient.post("http://www.extremetech.com/wp-content/uploads/2011/08/amd-logo-106x59.jpg", params, new AsyncHttpResponseHandler() {
@Override
public void onStart() {
}
@Override
public void onSuccess(String response) {
Log.i("EOH",response);
ByteArrayInputStream bis = null;
try {
bis = new ByteArrayInputStream(response.getBytes("UTF8"));
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Bitmap bm=BitmapFactory.decodeStream(bis);
ImageView imgView = (ImageView)findViewById(R.id.imageView2);
imgView.setImageBitmap(bm);
}
@Override
public void onFailure(Throwable e) {
}
});
}