我有Listview的适配器类,它位于一个名为AdapterItems的类中,该类在ArrayAdapter中扩展。
知道如何在此类中使用未在Activity中扩展的进度对话框?
这是我对listview的填充方法
public void fill(final ArrayAdapter<RssParser.Item> adapter, final RssParser.Item item, final int position)
{
Thread thread = new Thread(new Runnable() {
@Override
public void run() {
ActivityStartup.handler.post(new Runnable() {
@Override
public void run() {
ActivityStartup.dismissLoadingDialog();
txtTitle.setText(item.title);
txtDate.setText(item.pubDate);
txt_time.setText(item.time);
txtDescription.setText(item.description);
layoutRoot.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (progress == null) {
progress = new ProgressDialog(v.getContext());
progress.setTitle("title");
progress.setMessage("loading");
}
progress.show();
G.SelectedApplication = item;
Intent intent = new Intent(G.context, Adapter_Description.class)
.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.putExtra("INPUT", item.link + "");
intent.putExtra("INPUT_DESC", item.description + "");
G.context.startActivity(intent);
}
});
}
});
}
});
thread.start();
}
}
当我点击列表视图中的项目以查看对话框时我遇到了崩溃,这是我的日志
09-06 12:04:10.368:E / AndroidRuntime(5112):致命异常:主要 09-06 12:04:10.368:E / AndroidRuntime(5112):android.view.WindowManager $ BadTokenException:无法添加窗口 - 令牌null不适用于应用程序 09-06 12:04:10.368:E / AndroidRuntime(5112):在android.view.ViewRootImpl.setView(ViewRootImpl.java:571) 09-06 12:04:10.368:E / AndroidRuntime(5112):在android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:246) 09-06 12:04:10.368:E / AndroidRuntime(5112):在android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69) 09-06 12:04:10.368:E / AndroidRuntime(5112):在android.app.Dialog.show(Dialog.java:281) 09-06 12:04:10.368:E / AndroidRuntime(5112):at com.myApp.course.app.feed_reader.AdapterItems $ ViewHolder $ 1 $ 1 $ 1.onClick(AdapterItems.java:71) 09-06 12:04:10.368:E / AndroidRuntime(5112):在android.view.View.performClick(View.java:4204) 09-06 12:04:10.368:E / AndroidRuntime(5112):在android.view.View $ PerformClick.run(View.java:17355) 09-06 12:04:10.368:E / AndroidRuntime(5112):在android.os.Handler.handleCallback(Handler.java:725) 09-06 12:04:10.368:E / AndroidRuntime(5112):在android.os.Handler.dispatchMessage(Handler.java:92) 09-06 12:04:10.368:E / AndroidRuntime(5112):在android.os.Looper.loop(Looper.java:137) 09-06 12:04:10.368:E / AndroidRuntime(5112):在android.app.ActivityThread.main(ActivityThread.java:5041) 09-06 12:04:10.368:E / AndroidRuntime(5112):at java.lang.reflect.Method.invokeNative(Native Method) 09-06 12:04:10.368:E / AndroidRuntime(5112):at java.lang.reflect.Method.invoke(Method.java:511) 09-06 12:04:10.368:E / AndroidRuntime(5112):at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:793) 09-06 12:04:10.368:E / AndroidRuntime(5112):at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 09-06 12:04:10.368:E / AndroidRuntime(5112):at dalvik.system.NativeStart.main(Native Method) 09-06 12:04:36.292:E / InputDispatcher(467):channel'a69034a0 com.myApp.course.app.feed_reader / com.myApp.course.app.feed_reader.ActivityStartup(server)'〜频道无法恢复将被处置!
答案 0 :(得分:1)
只需将活动Context
传递给您的non_activity类的构造函数,然后使用该上下文显示您的ProgressDialog
private Activity activityContext;
Public YourClassName(Activity activityContext)
{
this.activityContext = activityContext;
}
然后使用此Context初始化ProgressDialog:
progressDialog = new ProgressDialog(activityContext);
答案 1 :(得分:0)
你必须通过
活动背景
到您的非活动课程。然后使用该上下文显示Dialog