Как установить изображение для просмотра изображения с URL-адреса Android
Я пытаюсь загрузить и показать изображение в моем просмотре изображений с URL, которое я получу в режиме dyncamically. Я пробовал таким образом
URL url = new URL(parsedWeatherResponse.getWeatherIconUrl());
Bitmap bmp = BitmapFactory.decodeStream(url.openConnection().getInputStream());
weather_image.setImageBitmap(bmp);
Но это показывает исключение, что
10-04 12:22:40.221: E/AndroidRuntime(15097): FATAL EXCEPTION: main
10-04 12:22:40.221: E/AndroidRuntime(15097): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.itintestapp/com.example.itintestapp.MainActivity}: android.os.NetworkOnMainThreadException
10-04 12:22:40.221: E/AndroidRuntime(15097): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2184)
10-04 12:22:40.221: E/AndroidRuntime(15097): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2211)
10-04 12:22:40.221: E/AndroidRuntime(15097): at android.app.ActivityThread.access$600(ActivityThread.java:149)
10-04 12:22:40.221: E/AndroidRuntime(15097): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1300)
10-04 12:22:40.221: E/AndroidRuntime(15097): at android.os.Handler.dispatchMessage(Handler.java:99)
10-04 12:22:40.221: E/AndroidRuntime(15097): at android.os.Looper.loop(Looper.java:153)
10-04 12:22:40.221: E/AndroidRuntime(15097): at android.app.ActivityThread.main(ActivityThread.java:4987)
10-04 12:22:40.221: E/AndroidRuntime(15097): at java.lang.reflect.Method.invokeNative(Native Method)
10-04 12:22:40.221: E/AndroidRuntime(15097): at java.lang.reflect.Method.invoke(Method.java:511)
10-04 12:22:40.221: E/AndroidRuntime(15097): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:821)
10-04 12:22:40.221: E/AndroidRuntime(15097): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:584)
10-04 12:22:40.221: E/AndroidRuntime(15097): at dalvik.system.NativeStart.main(Native Method)
10-04 12:22:40.221: E/AndroidRuntime(15097): Caused by: android.os.NetworkOnMainThreadException
10-04 12:22:40.221: E/AndroidRuntime(15097): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1125)
10-04 12:22:40.221: E/AndroidRuntime(15097): at java.net.InetAddress.lookupHostByName(InetAddress.java:385)
10-04 12:22:40.221: E/AndroidRuntime(15097): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
10-04 12:22:40.221: E/AndroidRuntime(15097): at java.net.InetAddress.getAllByName(InetAddress.java:214)
10-04 12:22:40.221: E/AndroidRuntime(15097): at libcore.net.http.HttpConnection.(HttpConnection.java:70)
10-04 12:22:40.221: E/AndroidRuntime(15097): at libcore.net.http.HttpConnection.(HttpConnection.java:50)
10-04 12:22:40.221: E/AndroidRuntime(15097): at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:340)
10-04 12:22:40.221: E/AndroidRuntime(15097): at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:87)
10-04 12:22:40.221: E/AndroidRuntime(15097): at libcore.net.http.HttpConnection.connect(HttpConnection.java:128)
10-04 12:22:40.221: E/AndroidRuntime(15097): at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:316)
10-04 12:22:40.221: E/AndroidRuntime(15097): at libcore.net.http.HttpEngine.connect(HttpEngine.java:311)
10-04 12:22:40.221: E/AndroidRuntime(15097): at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:290)
10-04 12:22:40.221: E/AndroidRuntime(15097): at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:240)
10-04 12:22:40.221: E/AndroidRuntime(15097): at libcore.net.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:292)
10-04 12:22:40.221: E/AndroidRuntime(15097): at libcore.net.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:185)
10-04 12:22:40.221: E/AndroidRuntime(15097): at com.example.itintestapp.MainActivity.setSectorData(MainActivity.java:64)
10-04 12:22:40.221: E/AndroidRuntime(15097): at com.example.itintestapp.MainActivity.onCreate(MainActivity.java:40)
10-04 12:22:40.221: E/AndroidRuntime(15097): at android.app.Activity.performCreate(Activity.java:5020)
10-04 12:22:40.221: E/AndroidRuntime(15097): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
10-04 12:22:40.221: E/AndroidRuntime(15097): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148)
10-04 12:22:40.221: E/AndroidRuntime(15097): ... 11 more
Пожалуйста, помогите мне, как я могу это сделать. Я показал изображение с URL
Я пробовал таким образом
class DownloadImageTask extends AsyncTask {
ImageView bmImage;
public DownloadImageTask(ImageView bmImage) {
this.bmImage = bmImage;
}
protected Bitmap doInBackground(String... urls) {
String urldisplay = urls[0];
Bitmap mIcon11 = null;
try {
InputStream in = new java.net.URL(urldisplay).openStream();
mIcon11 = BitmapFactory.decodeStream(in);
} catch (Exception e) {
Log.e("Error", e.getMessage());
e.printStackTrace();
}
return mIcon11;
}
protected void onPostExecute(Bitmap result) {
bmImage.setImageBitmap(result);
}
}
призвание
new DownloadImageTask((ImageView) findViewById(R.id.weather_image))
.execute(parsedWeatherResponse.getWeatherIconUrl());
Получать этоисключение
10-04 12:29:14.298: E/AndroidRuntime(15813): FATAL EXCEPTION: main
10-04 12:29:14.298: E/AndroidRuntime(15813): java.lang.NullPointerException
10-04 12:29:14.298: E/AndroidRuntime(15813): at com.example.itintestapp.DownloadImageTask.onPostExecute(DownloadImageTask.java:32)
10-04 12:29:14.298: E/AndroidRuntime(15813): at com.example.itintestapp.DownloadImageTask.onPostExecute(DownloadImageTask.java:1)
10-04 12:29:14.298: E/AndroidRuntime(15813): at android.os.AsyncTask.finish(AsyncTask.java:631)
10-04 12:29:14.298: E/AndroidRuntime(15813): at android.os.AsyncTask.access$600(AsyncTask.java:177)
10-04 12:29:14.298: E/AndroidRuntime(15813): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644)
10-04 12:29:14.298: E/AndroidRuntime(15813): at android.os.Handler.dispatchMessage(Handler.java:99)
10-04 12:29:14.298: E/AndroidRuntime(15813): at android.os.Looper.loop(Looper.java:153)
10-04 12:29:14.298: E/AndroidRuntime(15813): at android.app.ActivityThread.main(ActivityThread.java:4987)
10-04 12:29:14.298: E/AndroidRuntime(15813): at java.lang.reflect.Method.invokeNative(Native Method)
10-04 12:29:14.298: E/AndroidRuntime(15813): at java.lang.reflect.Method.invoke(Method.java:511)
10-04 12:29:14.298: E/AndroidRuntime(15813): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:821)
10-04 12:29:14.298: E/AndroidRuntime(15813): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:584)
10-04 12:29:14.298: E/AndroidRuntime(15813): at dalvik.system.NativeStart.main(Native Method)