在AsyncTask中使用Picasso加载图像 [英] Loading Image using picasso inside AsyncTask
本文介绍了在AsyncTask中使用Picasso加载图像的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在使用毕加索将图像加载为活动的背景,我想在图像加载时使用AsyncTask,完成后关闭进度条以使我的应用程序外观更好
I'm using picasso to load an image as a background for my activity, I want to use an AsyncTask, while the image is loading, when done the progress bar dismisses to give better appearance to my application,
这是我的代码:
private class RemoteDataTask extends AsyncTask<Void, Void, Void> {
@Override
protected void onPreExecute() {
super.onPreExecute();
mProgressDialog = new ProgressDialog(MainActivity.this);
mProgressDialog.setMessage("Chargement...");
mProgressDialog.setIndeterminate(false);
mProgressDialog.show();
}
@Override
protected Void doInBackground(Void... params) {
Picasso.with(MainActivity.this).load("http://tv2.orangeadd.com/mediacenter-data/ofc__bg_home.jpg").into(background,new com.squareup.picasso.Callback() {
@Override
public void onSuccess() {
mProgressDialog.dismiss();
}
@Override
public void onError() {
}
});
return null;
}
@Override
protected void onPostExecute(Void result) {
}
}
这总是显示错误并迫使我的应用程序退出!
this is always showing an error and forcing my application to quit !
谢谢大家:)
推荐答案
public void loadImageInBackground() {
mProgressDialog = new ProgressDialog(MainActivity.this);
mProgressDialog.setMessage("Chargement...");
mProgressDialog.setIndeterminate(false);
Target target = new Target() {
@Override
public void onPrepareLoad(Drawable arg0) {
mProgressDialog.show();
}
@Override
public void onBitmapLoaded(Bitmap arg0, LoadedFrom arg1) {
background.setImageBitmap(arg0);
mProgressDialog.dismiss();
}
@Override
public void onBitmapFailed(Drawable arg0) {
// TODO Auto-generated method stub
mProgressDialog.dismiss();
}
};
Picasso.with(MainActivity.this)
.load("http://tv2.orangeadd.com/mediacenter-data/ofc__bg_home.jpg")
.into(target);
}
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