我有一个类来创建对话框和编码以从中获取值 . 它适用于一个人 . 当我第二次尝试调用对话框时,它会传递以下错误消息 .
public class DriverUpdateStatus extends DialogFragment {
private static DriverUpdateStatus driverUpdateStatus;
private Context context;
private View view;
public static DriverUpdateStatus newInstance(Context context) {
if (driverUpdateStatus == null) {
driverUpdateStatus = new DriverUpdateStatus();
driverUpdateStatus.view = LayoutInflater.from(context).inflate(R.layout.dialog_driver_update_status, null);
}
driverUpdateStatus.context = context;
return driverUpdateStatus;
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
return new AlertDialog.Builder(context)
.setTitle("SELECT_STATE")
.setView(this.view)
.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dismiss();
}
})
.create();
}
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:orientation="horizontal">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<ImageButton
android:id="@+id/im_off_duty"
android:layout_width="100dp"
android:layout_height="100dp"
android:backgroundTint="@color/cardview_light_background"
android:src="@drawable/ic_power_settings_new_black_24dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Off Duty" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical">
<ImageButton
android:id="@+id/im_on_duty"
android:layout_width="100dp"
android:layout_height="100dp"
android:backgroundTint="@color/cardview_light_background"
android:src="@drawable/ic_check_circle_black_24dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="On Duty" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical">
<ImageButton
android:id="@+id/im_sleeper"
android:layout_width="100dp"
android:layout_height="100dp"
android:backgroundTint="@color/cardview_light_background"
android:src="@drawable/ic_airline_seat_individual_suite_black_24dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Sleeper" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<ImageButton
android:id="@+id/im_driving"
android:layout_width="100dp"
android:layout_height="100dp"
android:backgroundTint="@color/cardview_light_background"
android:src="@drawable/ic_do_not_disturb_on_black_24dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Driving" />
</LinearLayout>
</LinearLayout>
进程:com.jackfruitsystems.fleetoperate,PID:4759 java.lang.IllegalStateException:指定的子节点已经有父节点 . 您必须首先在孩子的父母上调用removeView() . 在android.view.ViewD.addViewInner(ViewGroup.java:4310)的android.view.ViewGroup.addView(ViewGroup.java:4146)位于com.android的android.view.ViewGroup.addView(ViewGroup.java:4118) . com.android.internal.app.AlertController.installContent(AlertController.java)中com.android.internal.app.AlertController.setupView(AlertController.java:496)的internal.app.AlertController.setupCustomContent(AlertController.java:585): 234)在android.app.AlertDialog.onCreate(AlertDialog.java:423)的android.app.Dialog.dispatchOnCreate(Dialog.java:394)android.app.Dialog.show(Dialog.java:295) . app.DialogFragment.onStart(DialogFragment.java:499)位于android.app.Fragment.Imp.moveTo状态的android.app.Fragment.perpartTart(Fragment.java:1002)的android.app.Fragment.performStart(Fragment.java:2244) (FragmentManager.java:1148)在android.app.BackStackRecord.run(BackStackRecord.java:793)的android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1535)atro位于android.os的android.os.Handler.dispatchMessage(Handler.java:95)上的android.os.Handler.handleCallback(Handler.java:739)中的id.app.FragmentManagerImpl $ 1.run(FragmentManager.java:482) . 位于android.app.ActivityThread.main(ActivityThread.java:5417)的looper.loop(Looper.java:148)位于com.android.internal.os.ZygoteInit $的java.lang.reflect.Method.invoke(Native Method) Com.android.internal.os.ZygoteInit.main中的MethodAndArgsCaller.run(ZygoteInit.java:726)(ZygoteInit.java:616)
2 回答
始终使用新视图,或在使用它时从其父项中删除 .
您将布局中存在的视图再次放在此行
.setView(this.view)