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将图像设置为图像时的 NullPointer 例外 。 从 Bitmap 查看?
原标题:NullPointerException while setting Image in imageView from Bitmap?

我从http://developer.android.com/guide/marked/expansion-files.html 上使用APK扩展文件,http://developmenter.android.com/guide/market/expansion-files.html 。

代码 :

String[] path= getAPKExpansionFiles(this,2,0);
ZipResourceFile expansionFile;
try {
        expansionFile = new ZipResourceFile(path[0]);
        InputStream fileStream = expansionFile.getInputStream("assets/Tablet/Chester_the_cat/chester_the_cat_2.png");
        Bitmap bit=BitmapFactory.decodeStream(fileStream);
            iv_new=(ImageView)findViewById(R.id.iv_new);
            iv_new.setImageBitmap(bit);

和 m 获得此 NullPointer 例外在此行中

   iv_new.setImageBitmap(bit);

在 XML 中,我的图像视图是 :

 <ImageView android:id="@+id/iv_new"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"/>
最佳回答

您是否将 setContentView(View) 与包含图像View 的布局调用?

问题回答

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