Question

我有一个Web服务来检索转换为字符串的图像，并在我的Android应用程序中转换回二进制数组。但不幸的是在停止时出现了力量关闭错误我正在使用这里解释的代码来填充imageView：
display image from byteArray

这是我在C＃中的Web服务方法，它向我发送数据：

public String GetPersonImage()
        {
            int PersonCode = 1;
            JPerson person = new JPerson(PersonCode);
            Image personImage = person.PersonImage;
            if (personImage == null)
                return "Nothing";
            using (MemoryStream ms = new MemoryStream())
            {
                personImage.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
                return Convert.ToBase64String(ms.ToArray());
            }
        }

这就是我试图将数据放入ImageView的方式：

            String pic = t.execute().get();
            byte[] picData = pic.getBytes();
            ImageView imgPerson = (ImageView) findViewById(R.id.imgPerson);
            Bitmap bitmap = BitmapFactory.decodeByteArray(picData, 0, picData.length);
            imgPerson.setImageBitmap(bitmap);

pic变量包含来自Web服务的数据。这是我的原木猫：

11-13 14:08:23.092: D/dalvikvm(29229): GC_FOR_ALLOC freed 2290K, 41% free 8004K/13420K, paused 27ms, total 27ms
11-13 14:08:23.092: I/dalvikvm-heap(29229): Forcing collection of SoftReferences for 185326656-byte allocation
11-13 14:08:23.143: D/dalvikvm(29229): GC_BEFORE_OOM freed 9K, 41% free 7994K/13420K, paused 42ms, total 43ms
11-13 14:08:23.143: E/dalvikvm-heap(29229): Out of memory on a 185326656-byte allocation.
11-13 14:08:23.143: I/dalvikvm(29229): "main" prio=5 tid=1 RUNNABLE
11-13 14:08:23.143: I/dalvikvm(29229):   | group="main" sCount=0 dsCount=0 obj=0x40a729a0 self=0x2a00bba8
11-13 14:08:23.143: I/dalvikvm(29229):   | sysTid=29229 nice=0 sched=0/0 cgrp=apps handle=1073849308
11-13 14:08:23.143: I/dalvikvm(29229):   | state=R schedstat=( 1210556247 2173314492 1073 ) utm=93 stm=28 core=0
11-13 14:08:23.143: I/dalvikvm(29229):   at android.graphics.BitmapFactory.nativeDecodeByteArray(Native Method)
11-13 14:08:23.151: I/dalvikvm(29229):   at android.graphics.BitmapFactory.decodeByteArray(BitmapFactory.java:428)
11-13 14:08:23.151: I/dalvikvm(29229):   at android.graphics.BitmapFactory.decodeByteArray(BitmapFactory.java:446)
11-13 14:08:23.151: I/dalvikvm(29229):   at com.example.shareholders.PersonnelInfo.clickHandler(PersonnelInfo.java:116)
11-13 14:08:23.151: I/dalvikvm(29229):   at java.lang.reflect.Method.invokeNative(Native Method)
11-13 14:08:23.151: I/dalvikvm(29229):   at java.lang.reflect.Method.invoke(Method.java:511)
11-13 14:08:23.151: I/dalvikvm(29229):   at android.view.View$1.onClick(View.java:3594)
11-13 14:08:23.151: I/dalvikvm(29229):   at android.view.View.performClick(View.java:4204)
11-13 14:08:23.151: I/dalvikvm(29229):   at android.view.View$PerformClick.run(View.java:17355)
11-13 14:08:23.151: I/dalvikvm(29229):   at android.os.Handler.handleCallback(Handler.java:725)
11-13 14:08:23.151: I/dalvikvm(29229):   at android.os.Handler.dispatchMessage(Handler.java:92)
11-13 14:08:23.151: I/dalvikvm(29229):   at android.os.Looper.loop(Looper.java:137)
11-13 14:08:23.151: I/dalvikvm(29229):   at android.app.ActivityThread.main(ActivityThread.java:5041)
11-13 14:08:23.151: I/dalvikvm(29229):   at java.lang.reflect.Method.invokeNative(Native Method)
11-13 14:08:23.151: I/dalvikvm(29229):   at java.lang.reflect.Method.invoke(Method.java:511)
11-13 14:08:23.151: I/dalvikvm(29229):   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
11-13 14:08:23.151: I/dalvikvm(29229):   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
11-13 14:08:23.151: I/dalvikvm(29229):   at dalvik.system.NativeStart.main(Native Method)
11-13 14:08:23.161: D/skia(29229): --- decoder->decode returned false
11-13 14:08:23.161: D/AndroidRuntime(29229): Shutting down VM
11-13 14:08:23.161: W/dalvikvm(29229): threadid=1: thread exiting with uncaught exception (group=0x40a71930)
11-13 14:08:23.182: E/AndroidRuntime(29229): FATAL EXCEPTION: main
11-13 14:08:23.182: E/AndroidRuntime(29229): java.lang.IllegalStateException: Could not execute method of the activity
11-13 14:08:23.182: E/AndroidRuntime(29229):    at android.view.View$1.onClick(View.java:3599)
11-13 14:08:23.182: E/AndroidRuntime(29229):    at android.view.View.performClick(View.java:4204)
11-13 14:08:23.182: E/AndroidRuntime(29229):    at android.view.View$PerformClick.run(View.java:17355)
11-13 14:08:23.182: E/AndroidRuntime(29229):    at android.os.Handler.handleCallback(Handler.java:725)
11-13 14:08:23.182: E/AndroidRuntime(29229):    at android.os.Handler.dispatchMessage(Handler.java:92)
11-13 14:08:23.182: E/AndroidRuntime(29229):    at android.os.Looper.loop(Looper.java:137)
11-13 14:08:23.182: E/AndroidRuntime(29229):    at android.app.ActivityThread.main(ActivityThread.java:5041)
11-13 14:08:23.182: E/AndroidRuntime(29229):    at java.lang.reflect.Method.invokeNative(Native Method)
11-13 14:08:23.182: E/AndroidRuntime(29229):    at java.lang.reflect.Method.invoke(Method.java:511)
11-13 14:08:23.182: E/AndroidRuntime(29229):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
11-13 14:08:23.182: E/AndroidRuntime(29229):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
11-13 14:08:23.182: E/AndroidRuntime(29229):    at dalvik.system.NativeStart.main(Native Method)
11-13 14:08:23.182: E/AndroidRuntime(29229): Caused by: java.lang.reflect.InvocationTargetException
11-13 14:08:23.182: E/AndroidRuntime(29229):    at java.lang.reflect.Method.invokeNative(Native Method)
11-13 14:08:23.182: E/AndroidRuntime(29229):    at java.lang.reflect.Method.invoke(Method.java:511)
11-13 14:08:23.182: E/AndroidRuntime(29229):    at android.view.View$1.onClick(View.java:3594)
11-13 14:08:23.182: E/AndroidRuntime(29229):    ... 11 more
11-13 14:08:23.182: E/AndroidRuntime(29229): Caused by: java.lang.OutOfMemoryError
11-13 14:08:23.182: E/AndroidRuntime(29229):    at android.graphics.BitmapFactory.nativeDecodeByteArray(Native Method)
11-13 14:08:23.182: E/AndroidRuntime(29229):    at android.graphics.BitmapFactory.decodeByteArray(BitmapFactory.java:428)
11-13 14:08:23.182: E/AndroidRuntime(29229):    at android.graphics.BitmapFactory.decodeByteArray(BitmapFactory.java:446)
11-13 14:08:23.182: E/AndroidRuntime(29229):    at com.example.shareholders.PersonnelInfo.clickHandler(PersonnelInfo.java:116)
11-13 14:08:23.182: E/AndroidRuntime(29229):    ... 14 more
11-13 14:13:23.284: I/Process(29229): Sending signal. PID: 29229 SIG: 9
11-13 14:13:23.751: E/Trace(31566): error opening trace file: No such file or directory (2)
11-13 14:13:23.791: I/METHOD INFO(31566): AppMenu.onCreate():21
11-13 14:13:23.912: D/dalvikvm(31566): GC_CONCURRENT freed 61K, 8% free 2752K/2964K, paused 15ms+11ms, total 77ms
11-13 14:13:24.051: D/gralloc_goldfish(31566): Emulator without GPU emulation detected.

Answer 1

C＃服务器正在向您发送一个基本的64字符串，并且您正在尝试直接读取其字节。首先需要解码它，然后转换为字节数组。

试试这个：

byte[] decodedBytes = Base64.decode(pic, Base64.DEFAULT);
Bitmap bitmap = BitmapFactory.decodeByteArray(decodedBytes , 0, decodedBytes.length);

在二进制数组中显示ImageView中的图像

1 个答案: