Question

我有一个262144（512 * 512）一维像素int[] pixelsArray数组，我想将其转换为Bitmap并在Android应用中显示，所以我把

 bitmap = Bitmap.createBitmap(512, 512, Bitmap.Config.ARGB_8888);
    bitmap.setPixels(pixelsArray, 0, 512, 0, 0, 512, 512);

I get this message 

java.lang.IllegalArgumentException: bitmap size exceeds 32bits
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
            at android.app.ActivityThread.access$600(ActivityThread.java:141)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5041)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
            at dalvik.system.NativeStart.main(Native Method)
     Caused by: java.lang.IllegalArgumentException: bitmap size exceeds 32bits
            at android.graphics.Bitmap.nativeCreate(Native Method)
            at android.graphics.Bitmap.createBitmap(Bitmap.java:689)
            at android.graphics.Bitmap.createBitmap(Bitmap.java:666)
            at android.graphics.Bitmap.createBitmap(Bitmap.java:633)

我尝试了一些SO解决方案，但都没有效果。有人可以帮忙吗？

Answer 1

这是有效的答案：

bitmap = Bitmap.createBitmap(512, 512, Bitmap.Config.ARGB_8888);
byte[] byteArray = new String(pixelsArray).getBytes("UTF-8");
BitmapFactory.Options thumbOpts = new BitmapFactory.Options();
thumbOpts.inSampleSize = 4;
bitmap = BitmapFactory.decodeByteArray(byteArray, 0, pixelsArray.length, thumbOpts);

在Android中转换位图中的像素数组

1 个答案: