我的问题是下一个......
我试图显示一个图像,该图像在我的phpmyadmin中定义,并托管在相应的文件夹中,但bitmapfactory返回nothin。
我的JAVA:
if (success == 1) {
// successfully received product details
JSONArray productObj = json.getJSONArray(TAG_PRODUCT); // JSON Array
// get first product object from JSON Array
JSONObject product = productObj.getJSONObject(0);
// product with this pid found
// Edit Text
txtName = (EditText) findViewById(R.id.inputName);
txtPrice = (EditText) findViewById(R.id.inputPrice);
txtDesc = (EditText) findViewById(R.id.inputDesc);
// display product data in EditText
txtName.setText(product.getString(TAG_NAME));
txtPrice.setText(product.getString(TAG_PRICE));
txtDesc.setText(product.getString(TAG_DESCRIPTION));
//imageview
imageView1 = (ImageView)findViewById(R.id.imageView1);
imagen_url=product.getString("TAG_IMAGEN");
String imagen_url2=product.optString("TAG_IMAGEN");
byte[] encodeByte = Base64.decode(imagen_url, Base64.DEFAULT);
Bitmap bitmap = BitmapFactory.decodeByteArray(encodeByte, 0, encodeByte.length);
imageView1.setImageBitmap(bitmap);
和PHP
$product["imagen"] = base64_encode($result["imagen"]);
它返回错误:
04-10 04:12:32.344: W/System.err(1424): org.json.JSONException: No value for TAG_IMAGEN
04-10 04:12:32.364: W/System.err(1424): at org.json.JSONObject.get(JSONObject.java:355)
04-10 04:12:32.364: W/System.err(1424): at org.json.JSONObject.getString(JSONObject.java:515)
04-10 04:12:32.374: W/System.err(1424): at com.example.androidhive.EditProductActivity$GetProductDetails$1.run(EditProductActivity.java:180)
04-10 04:12:32.374: W/System.err(1424): at android.os.Handler.handleCallback(Handler.java:733)
04-10 04:12:32.374: W/System.err(1424): at android.os.Handler.dispatchMessage(Handler.java:95)
04-10 04:12:32.404: W/System.err(1424): at android.os.Looper.loop(Looper.java:136)
04-10 04:12:32.404: W/System.err(1424): at android.app.ActivityThread.main(ActivityThread.java:5017)
04-10 04:12:32.404: W/System.err(1424): at java.lang.reflect.Method.invokeNative(Native Method)
04-10 04:12:32.414: W/System.err(1424): at java.lang.reflect.Method.invoke(Method.java:515)
04-10 04:12:32.414: W/System.err(1424): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
04-10 04:12:32.414: W/System.err(1424): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
04-10 04:12:32.434: W/System.err(1424): at dalvik.system.NativeStart.main(Native Method)
答案 0 :(得分:0)
问题是标签,如果我把:
imagen_url=product.getString("imagen");
有效,但没有:
imagen_url=product.getString("TAG_IMAGEN");
我不知道为什么,但是通过这种改变,它运作正常!