如何從android imageview中的dataurl加載圖像？

我有以下dataurl如何從android imageview中的dataurl加載圖像？

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有沒有辦法來加載dataUrl在ImageView的？

來源

2015-03-31 Jyothish

首先你需要convert the Base64 encoded string到一個位圖。代碼如下段從鏈接的問題：

byte[] decodedString = Base64.decode("Your Base64 String", Base64.DEFAULT); 
Bitmap bitMap = BitmapFactory.decodeByteArray(decodedString, 0, decodedString.length);

當做到這一點，你有你的位圖bitmap 假設你imageView被定義爲R.id.image_view 然後就去做，你會與任何其他位圖：

ImageView imageView; 
imageView = (ImageView) findViewById(R.id.image_view); 
imageView.setImageBitmap(bitmap);

來源

2015-03-31 18:17:56

進行上述解碼時出現內存不足錯誤 – Jyothish 2015-03-31 19:18:26

@Jyothish您可以發佈堆棧跟蹤嗎？ – 2015-03-31 19:21:10

只是使用Base64.decode()方法解碼Base64圖像編碼方法來接收字節數組，然後使用BitmapFactory.decodeByteArray()方法創建Bitmap。

來源

2015-03-31 18:16:36 Egor

我有一個變量的數據並不需要從數據庫或網絡中獲取它。我是否需要在asynctask中進行解碼或者在主線程中執行解碼會影響性能？ – Jyothish 2015-04-01 11:01:59

如果將Base64部分輸入，可以通過以下方式將其輕鬆轉換爲位圖：

byte[] decodedString = Base64.decode("your base64 string", Base64.DEFAULT); 
Bitmap decodedByte = BitmapFactory.decodeByteArray(decodedString, 0, decodedString.length);

來源

2015-03-31 18:19:00

得到的base64字符串中字符串變量解碼

字符串encodedImage;在該串//設置的base64字符串值字節[] decodedString = Base64.decode（encodedImage，Base64.DEFAULT）; 位圖decodedByte = BitmapFactory.decodeByteArray（decodedString，0，decodedString.length）;

來源

2015-03-31 18:19:09

如何從android imageview中的dataurl加載圖像？

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