Android杩 - 楂ずBitmapUI涓嚎A澶Bitmap?
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杩厘Q浠ヤ娇 AsyncTask ュUI涓嚎A嚎腑澶杩涓?釜棰QΕ濂藉苟棰Q㈠浠杩袱棰澶
浣跨AsyncTask AsyncTask 滑浜濂界瑰ュUI涓嚎澶跨涓ц浜换★朵换＄杩I涓嚎?lфAsyncTask 苟涓?娉浣跨杩厘姝ヤ徽d瑰㈡涓?釜

ListView?a href="http://www.android-doc.com/reference/android/widget/GridView.html" style="font-family:'courier new',courier,monospace; font-size:14px; font-weight:bold; line-height:21px; color:rgb(37,138,175); text-decoration:initial">GridView 杩厘父瑗瑰』挥lAsyncTask 涓?浣跨浜хA涓?釜棰浜敖界娇ㄦQㄦ婊杩被瑙浼╃瀹瀛@涓瀛藉Е涓?span style="background-color:rgb(249,249,249); color:rgb(34,34,34); font-family:Roboto,sans-serif; font-size:14px; line-height:19px"> AsyncTask 涔涓璇瑰凡朵A涓?釜瀛瑰煮@ㄤ?涓寮ヤ徽d琛『搴苟涓崇浠琛『搴杩L涓ょ厘Q杩釜跺棰戒瀵璁疆瑙涓浼浣?
      硅绂莉q跺浣棰滑浠ヨ?a href="http://www.android-doc.com/reference/android/widget/ImageView.html" style="font-family:'courier new',courier,monospace; font-size:14px; font-weight:bold; line-height:21px; background-color:rgb(249,249,249); color:rgb(37,138,175); text-decoration:initial">ImageView 瀵硅薄瀛涓?釜?浣跨?a href="http://www.android-doc.com/reference/android/os/AsyncTask.html" style="font-family:'courier new',courier,monospace; font-size:14px; font-weight:bold; line-height:21px; color:rgb(37,138,175); text-decoration:initial">AsyncTask 锛锋浠浠ュL浠诲?/div>
     涓?釜涓?a href="http://www.android-doc.com/reference/android/graphics/drawable/Drawable.html" style="font-family:'courier new',courier,monospace; font-size:14px; font-weight:bold; line-height:21px; color:rgb(37,138,175); text-decoration:initial">Drawable 瀛被ュㄤ涓涓瀵瑰syncTask (杩釜AsyncTask 瀹涓ㄦDrawable 换?浠杩ц卞浠ヤㄨ涓?a href="http://www.android-doc.com/reference/android/graphics/drawable/Drawable.html" style="font-family:'courier new',courier,monospace; font-size:14px; font-weight:bold; line-height:21px; color:rgb(37,138,175); text-decoration:initial">Drawable ユ寮璁ょ浜褰换″杩釜Drawable琚挎?/div>
class BitmapWorkerTask extends AsyncTask {    ...    @Override    protected void onPostExecute(Bitmap bitmap) {        // if task cancelled , this method is never invoked        // why check here ?         if (isCancelled()) {            bitmap = null;        }        if (imageViewReference != null && bitmap != null) {            final ImageView imageView = imageViewReference.get();            final BitmapWorkerTask bitmapWorkerTask =                    getBitmapWorkerTask(imageView);            // ゆ褰task稿task            if (this == bitmapWorkerTask && imageView != null) {                imageView.setImageBitmap(bitmap);            }        }    }}

     mageView版寮?ㄤ?/span> ListView and GridView 杩被I瑙浠浠ュAdapter涓getView()  涓璋?/span>loadBitmap