![](/img/trans.png)
[英]Showing Image from URL in the image view is showing blurred(not clear) image?
[英]downloaded image from url is not showing in view
我想問一下我要從url下載圖像,就是說我在字符串數組中有url,然后單擊按鈕,我移到下一個url,然后從服務器下載圖像。 它可以在三星銀河s2手機和圖像下載並在視圖中完美運行,但是在其他一些小尺寸屏幕的手機中,它卻不在視圖中顯示,但在某些情況下卻顯示...這是什么原因呢?在onpostExecute()中使用setimageBitmap(),它對於三星galaxys2效果很好,為什么在較低范圍的移動設備上它不顯示..i也會更改圖像視圖的高度和寬度,但不能解決..但是會顯示一段時間。
我的代碼如下。
日志貓:
logcat out put :
DEBUG/skia(231): --- decoder->decode returned false
INFO/System.out(231): Bitmap :: null
INFO/System.out(231): Bitmap on post :: null
WARN/InputManagerService(63): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@44c17828
INFO/System.out(231): Message sent
INFO/image url/////(231): http://www.artealdiaonline.com/var/artealdia_com/storage/images/argentina/agenda/exposiciones_muestras/carlos_cruz-diez/carlos_cruz-diez2/507989-1-esl-AR/Carlos_Cruz-Diez.jpg
INFO/System.out(231): Bitmap :: android.graphics.Bitmap@44d64750
INFO/System.out(231): Bitmap on post :: android.graphics.Bitmap@44d64750
試試這個來獲取圖像::
ImageButton tran_btn_skip = (ImageButton) findViewById(R.id.tran_btn_skip);
try {
Bitmap bitmap = BitmapFactory.decodeStream((InputStream) new URL(
"http://www.hermann-uwe.de/files/images/blue_flower.preview_0.jpg")
.getContent());
tran_btn_skip.setImageBitmap(bitmap);
} catch (Exception e) {
}
清單許可:
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
如果從服務器加載,請在移動設備( not in emulator
)中嘗試此操作,但是,如果從其他任何服務器加載,則可以在模擬器中顯示十。
更新::
package com.progressbar;
import java.io.InputStream;
import java.net.URL;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.widget.ImageButton;
public class progressbar extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ImageButton tran_btn_skip = (ImageButton) findViewById(R.id.login);
try {
Bitmap bitmap = BitmapFactory.decodeStream((InputStream) new URL(
"http://www.artealdiaonline.com/var/artealdia_com/storage/images/argentina/agenda/exposiciones_muestras/leila_tschopp3/baja-leila_tschopp_-_river_-acrilico_sobre_tela-130x150_cm_-_2011/498599-1-esl-AR/BAJA-Leila_Tschopp_-_River_-acrilico_sobre_tela-130x150_cm_-_2011.jpg")
.getContent());
tran_btn_skip.setImageBitmap(bitmap);
} catch (Exception e) {
}
}
}
試試這個:
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true);
conn.setConnectTimeout(7000);
conn.connect();
BufferedInputStream is = new BufferedInputStream(conn.getInputStream());
Drawable drawable = Drawable.createFromStream(is, imageUrl);
view.setImageBitmap(drawable)
這是完整的代碼:
String imageUrl = "http://someurl.com/example.png";
URL url = new URL(imageUrl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true);
conn.setConnectTimeout(7000);
conn.connect();
BufferedInputStream is = new BufferedInputStream(conn.getInputStream());
Drawable imageDrawable = Drawable.createFromStream(is, imageUrl);
view.setImageBitmap(imageDrawable);
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.