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我想要使用Picasso定期显示来自URL的图像。它显示单个图像很好,但是当我循环它时,它会产生错误或不显示。我在这里贴上我的代码,不显示任何图像图像视图循环毕加索加载url图像
public class Main extends AppCompatActivity {
Integer i=1;
String adurl = "http://mywebsite.com/img";
String nADURL;
private Context mContext;
private int index = 0;
private final int interval = 3000;
private final int DURATION = 1500;
ImageView iv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Initializing the ImageView
iv = (ImageView) findViewById(R.id.ivAdd);
showAd9 sh = new showAd9();
sh.execute("3000");
}
public class showAd9 extends AsyncTask<String, String, String> {
@Override
protected String doInBackground(String... params) {
nADURL = adurl.toString() + String.valueOf(i) + ".png";
try {
int time = Integer.parseInt(params[0]);
while(i<=4) {
Picasso.with(main.this).load(nADURL).skipMemoryCache().error(R.drawable.wrong).into(iv);
i++;
Thread.sleep(time);
}
} catch (InterruptedException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String result) {
}
}
你不应该从后台线程调用毕加索加载到。你不需要照顾穿线,毕加索为你做。 – lionscribe