我在其中一個名爲txtdownloadStatus.I的頁面中有一個textview,它具有下載一些數據的線程類,如果完成,我想顯示在放置在頁面中的textview中完成我對小輩說。在一個線程類中爲文本視圖分配值
我的用戶界面的名字是
download_manifest.txtdownloadStatus.setText("Completed Download");
是如下
public class thread_download extends Thread {
private download_helper downloadhelper;
private Context context;
public thread_download(Context context) {
this.context = context;
}
public void run() {
downloadhelper = new download_helper(this.context);
try {
downloadhelper.DownloadProblemAndReasonCode();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
downloadhelper.DownloadNewManifest();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
downloadhelper.DownloadNewMessages();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
downloadhelper.DeleteOldManifest();
try {
download_manifest.txtdownloadStatus.setText("Cpmpleted");
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
問題給出Thread類是,當我試圖在線程class.It顯示值設置爲TextView的如下面給出的錯誤
android.view.ViewRoot $ CalledFromWrongThreadException:只有創建視圖層次結構的原始線程可以觸及其視圖。
任何人都可以幫助我