图像不加载从MySQL存储为图像路径

Question

我想加载文本和图像（存储为图像路径）从MySQL数据库到列表视图。我能够获取文本，但图像未加载。通过大量的教程和SO问题，但无法解决它。

我与位图试图像下面

Bitmap bmImg = BitmapFactory.decodeFile("path of your img1"); 
imageView.setImageBitmap(bmImg); 

不工作。试图与文件文件= ...也但也没有工作。以下是带有最新更改的完整代码，但会引发网络异常。

public class MovieAdapter extends BaseAdapter{ 

private final sharedcollect sc; 
private final ArrayList<Mdetails> mdetails; 

public MovieAdapter(sharedcollect sc, ArrayList<Mdetails> mdetails) { 
    this.sc = sc; 
    this.mdetails = mdetails; 
} 

@Override 
public int getCount() { 
    return mdetails.size(); 
} 

@Override 
public Object getItem(int position) { 
    return mdetails.get(position); 
} 

@Override 
public long getItemId(int position) { 
    return position; 
} 

@Override 
public View getView(int position, View convertView, ViewGroup parent) { 

    Mdetails md = mdetails.get(position); 
    String moviename = md.moviename; 
    String year = md.year; 
    String imdbrating = md.irating; 
    String rottenrating = md.rating; 
    String genere = md.genere; 
    String Image = md.Image; 
    Bitmap bimage; 


    View view= LayoutInflater.from(sc).inflate(R.layout.custlayout,null); 
    TextView mname = (TextView)view.findViewById(R.id.moviename); 
    TextView myear = (TextView)view.findViewById(R.id.year); 
    TextView iname = (TextView)view.findViewById(R.id.irating); 
    TextView rname = (TextView)view.findViewById(R.id.rating); 
    TextView gname = (TextView)view.findViewById(R.id.genere); 

    bimage = getBitmapFromURL(Image); 
    ImageView iview= (ImageView)view.findViewById(R.id.imageView); 

    mname.setText(moviename); 
    myear.setText(" "+year); 
    iname.setText(" "+irating ); 
    rname.setText(" "+rating); 
    gname.setText("  " + genere); 
    iview.setImageBitmap(bimage); 

    return view; 
} 

public static Bitmap getBitmapFromURL(String image) { 

    try { 
     URL url = new URL(image); 
     HttpURLConnection connection = (HttpURLConnection) url.openConnection(); 
     connection.setDoInput(true); 
     connection.connect(); 
     InputStream input = connection.getInputStream(); 
     Bitmap myBitmap = BitmapFactory.decodeStream(input); 
     return myBitmap; 
    } catch (IOException e) { 
     e.printStackTrace(); 
     return null; 
    } 
    } 
} 

这段代码有什么问题？

的logcat：

FATAL EXCEPTION: main 
    Process: com.moviefilter.as, PID: 20319 
    android.os.NetworkOnMainThreadException 
     at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1147) 
     at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:110) 
     at libcore.io.IoBridge.connectErrno(IoBridge.java:137) 
     at libcore.io.IoBridge.connect(IoBridge.java:122) 
     at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:183) 
     at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:456) 
     at java.net.Socket.connect(Socket.java:882) 
     at com.android.okhttp.internal.Platform.connectSocket(Platform.java:174) 
     at com.android.okhttp.Connection.connect(Connection.java:152) 
     at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:276) 
     at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:211) 
     at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:382) 
     at com.android.okhttp.internal.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:106) 
     at com.moviefilter.allmovieratings.MovieAdapter.getBitmapFromURL(MovieAdapter.java:85) 
     at com.moviefilter.allmovieratings.MovieAdapter.getView(MovieAdapter.java:66) 
     at android.widget.AbsListView.obtainView(AbsListView.java:2347) 
     at android.widget.ListView.measureHeightOfChildren(ListView.java:1270) 
     at android.widget.ListView.onMeasure(ListView.java:1182) 
     at android.view.View.measure(View.java:17547) 
     at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:727) 
     at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:463) 
     at android.view.View.measure(View.java:17547) 
     at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5535) 
     at android.widget.FrameLayout.onMeasure(FrameLayout.java:436) 
     at android.support.v7.internal.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:124) 
     at android.view.View.measure(View.java:17547) 
     at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5535) 
     at android.support.v7.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:393) 
     at android.view.View.measure(View.java:17547) 
     at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5535) 
     at android.widget.FrameLayout.onMeasure(FrameLayout.java:436) 
     at android.view.View.measure(View.java:17547) 
     at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5535) 
     at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1436) 
     at android.widget.LinearLayout.measureVertical(LinearLayout.java:722) 
     at android.widget.LinearLayout.onMeasure(LinearLayout.java:613) 
     at android.view.View.measure(View.java:17547) 
     at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5535) 
     at android.widget.FrameLayout.onMeasure(FrameLayout.java:436) 
     at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2615) 
     at android.view.View.measure(View.java:17547) 
     at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2015) 
     at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1173) 
     at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1379) 
     at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1061) 
     at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5885) 
     at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767) 
     at android.view.Choreographer.doCallbacks(Choreographer.java:580) 
     at android.view.Choreographer.doFrame(Choreographer.java:550) 
     at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753) 
     at android.os.Handler.handleCallback(Handler.java:739) 
     at android.os.Handler.dispatchMessage(Handler.java:95) 
     at android.os.Looper.loop(Looper.java:135) 
     at android.app.ActivityThread.main(ActivityThread.java:5254) 
     at java.lang.reflect.Method.invoke(Native Method) 
     at java.lang.reflect.Method.invoke(Method.java:372) 
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903) 
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698) 

Answer 1

确保您已经添加了互联网许可清单文件。对于图片，我会推荐使用流行的Picasso库。您可以使用单个语句加载图像，如Picasso.with(context).load("http://i.imgur.com/DvpvklR.png").into(imageView);它自动处理图像加载和缓存。

编辑：当您尝试在主线程上执行网络操作时，会导致此异常。您需要使用类似AsyncTask的网络操作。您可以使用this示例使用AsyncTask进行加载。如果你想简单的解决这个问题，可以使用上面提到的库。

Answer 2

尝试this.It将解决您的错误

 Thread thread = new Thread(new Runnable(){ 
       @Override 
       public void run() { 
        try {                  

          Bitmap mIcon11 = null;        
          // create instance of InputStream and pass URL 
          InputStream in = new java.net.URL(imagelink).openStream(); 
          // decode stream and initialize bitmap 
          mIcon11 = BitmapFactory.decodeStream(in); 

          in.close(); 

         } 


         //Your code goes here 
        } catch (Exception e) { 
         e.printStackTrace(); 
        } 
       } 
      });