我有一段用户必须填写的字段。比如说电话号码。 当用户输入的数量,所述片段从调用MainActivity的方法和有在MainActivity完成某些操作,让我们假设:在片段上显示progressDialog BroadcastReceiver
1-验证
2-验证
我使用BroadcarstReceiver从MainActivity回传到片段。所以当验证完成后,我使用BroadcastReceiver向该片段发送一个标志,向用户显示progressDialog。
此时,progressDialog应显示,直到收到另一个用于验证的标志。
问题是,我得到了一些有关RuntimeException的错误,并且应用程序崩溃时应该显示progressDialog。
public class ProfileFragment extends Fragment {
ProgressDialog progressDialog;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_profile, container, false);
...
progressDialog = new ProgressDialog(getContext());
progressDialog.setContentView(R.layout.custom_progressdialog);
...
return rootView;
}
protected BroadcastReceiver ActivityDataReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if(ACTION_INTENT.equals(intent.getAction())) {
progressDialog.show();
}
if(ACTION_INTENT2.equals(intent.getAction())) {
progressDialog.dismiss();
}
}
}
这就是logcat中显示:
FATAL EXCEPTION: main
Process: com.detgsm, PID: 21736
android.util.AndroidRuntimeException: requestFeature() must be called before adding content
at com.android.internal.policy.PhoneWindow.requestFeature(PhoneWindow.java:398)
at com.android.internal.app.AlertController.installContent(AlertController.java:249)
at android.app.AlertDialog.onCreate(AlertDialog.java:423)
at android.app.ProgressDialog.onCreate(ProgressDialog.java:249)
at android.app.Dialog.dispatchOnCreate(Dialog.java:578)
at android.app.Dialog.show(Dialog.java:314)
at com.detgsm.ProfileFragment$7.onReceive(ProfileFragment.java:271)
at android.support.v4.content.LocalBroadcastManager.executePendingBroadcasts(LocalBroadcastManager.java:297)
at android.support.v4.content.LocalBroadcastManager.access$000(LocalBroadcastManager.java:46)
at android.support.v4.content.LocalBroadcastManager$1.handleMessage(LocalBroadcastManager.java:116)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7224)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
嘿你不能显示进度对话在广播Receiver.Possible重复的 [http://support.microsoft.com/kb/12766739/show-an-alert-dialog-in-broadcast-receiver-after -a-system-reboot) –
无法在BR中创建**进度对话框。如果你有一个对象的引用。你可以展示它。 – mallaudin
@mallaudin当我从无线电通信局收到国旗时,我怎么能在该片段中显示progressDialog? – masmic