我正在尝试访问firebase数据库并从内部类中向其推送一些值。但应用程序崩溃，我有“不活动”，与服务断开连接。我不知道为什么会这样。我是Firebase的新手。请帮我。 谢谢！ 下面是我内部类的代码：
public static class WH_total extends android.support.v4.app.Fragment {
public WH_total() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_total, container, false);
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
LinearLayout layout = (LinearLayout) getActivity().findViewById(R.id.total);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
params.setMargins(40, 300, 0, 0);
final Animation move = AnimationUtils.loadAnimation(getActivity(),
R.anim.move);
final Animation bounce = AnimationUtils.loadAnimation(getActivity(), R.anim.bounce);
TextView score = new TextView(getActivity());
layout.addView(score);
score.setVisibility(View.VISIBLE);
score.startAnimation(move);
score.setLayoutParams(params);
score.setText("Your score is :");
score.setTextSize(30);
score.setTextColor(Color.parseColor("#000000"));
LinearLayout.LayoutParams params1 = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
params1.setMargins(40, 0, 0, 0);
TextView score_display = new TextView(getActivity());
layout.addView(score_display);
score_display.setVisibility(View.VISIBLE);
score_display.startAnimation(move);
score_display.setText(String.valueOf(total));
score_display.setTextSize(20);
score_display.setTextColor(Color.parseColor("#125688"));
score_display.setLayoutParams(params1);
LinearLayout.LayoutParams params2 = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
params2.setMargins(40, 0, 0, 0);
TextView right_one = new TextView(getActivity());
layout.addView(right_one);
right_one.setVisibility(View.VISIBLE);
right_one.startAnimation(move);
right_one.setText("Right answers:");
right_one.setTextColor(Color.parseColor("#000000"));
right_one.setTextSize(30);
right_one.setLayoutParams(params2);
LinearLayout.LayoutParams params3 = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
params3.setMargins(40, 0, 0, 0);
TextView right_answers = new TextView(getActivity());
layout.addView(right_answers);
right_answers.setLayoutParams(params3);
right_answers.setText("Qno: ");
right_answers.setTextColor(Color.parseColor("#8BC34A"));
for (int j = 0; j < i; j++) {
if (j == 0) {
right_answers.append(String.valueOf(right[j]) + ", ");
} else if (j > 0 && j < i - 1) {
right_answers.append(String.valueOf(right[j]) + ", ");
} else {
right_answers.append(String.valueOf(right[j]) + ".");
}
}
right_answers.setTextSize(20);
right_answers.setVisibility(View.VISIBLE);
right_answers.startAnimation(move);
LinearLayout.LayoutParams params4 = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
params4.setMargins(40, 0, 0, 0);
TextView wrong_one = new TextView(getActivity());
layout.addView(wrong_one);
wrong_one.setVisibility(View.VISIBLE);
wrong_one.setAnimation(move);
wrong_one.setText("Wrong answers :");
wrong_one.setTextColor(Color.parseColor("#000000"));
wrong_one.setTextSize(30);
wrong_one.setLayoutParams(params4);
LinearLayout.LayoutParams params5 = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
params5.setMargins(40, 0, 0, 0);
TextView wrong_answers = new TextView((getActivity()));
layout.addView(wrong_answers);
wrong_answers.setLayoutParams(params5);
wrong_answers.setVisibility(View.VISIBLE);
wrong_answers.setAnimation(move);
wrong_answers.setText("Qno:");
wrong_answers.setTextColor(Color.parseColor("#ff7f7f"));
for (int i = 0; i < j; i++) {
if (i == 0) {
wrong_answers.append(String.valueOf(wrong[i]) + ", ");
} else if (i > 0 && i < j - 1) {
wrong_answers.append(String.valueOf(wrong[i]) + ", ");
} else {
wrong_answers.append(String.valueOf(wrong[j]) + ".");
}
}
wrong_answers.setTextSize(20);
report newReport = new report(total,right);
mFirebaseDatabase = FirebaseDatabase.getInstance();
mreference = mFirebaseDatabase.getReference().child("user").child("report");
mreference.push().setValue(newReport);
}
}
这是android监视器中的错误：
08-03 23：45：34.359 2102-32468 /？ V / FA-SVC：记录事件：origin = auto，name = screen_view（_vs），params = Bundle [{firebase_event_origin（_o）= auto，firebase_previous_class（_pc）= WaterHardness，firebase_previous_id（_ pi）= - 6258030923168432617，firebase_screen_class（_sc ）= WaterHardness_viva，firebase_screen_id（_si）= - 6258030923168432616}] 08-03 23：45：34.385 2102-32468 /？ V / FA-SVC：保存事件，名称，数据大小：screen_view（_vs），104 08-03 23：45：34.385 2102-32468 /？ V / FA-SVC：事件记录：事件{appId =＆＃39; com.example.india.chemistry＆＃39;，name =＆＃39; screen_view（_vs）＆＃39;，params = Bundle [{firebase_event_origin（ _o）= auto，firebase_previous_class（_pc）= WaterHardness，firebase_previous_id（_ pi）= - 6258030923168432617，firebase_screen_class（_sc）= WaterHardness_viva，firebase_screen_id（_si）= - 6258030923168432616}]} 08-03 23：45：34.395 2102-32468 /？ V / FA-SVC：上传时间大约为ms：2380804 08-03 23：45：34.415 2102-32468 /？ V / FA-SVC：取消作业。 JobID：812057698 08-03 23：45：34.419 2102-32468 /？ V / FA-SVC：使用AlarmManager计划上传 08-03 23：45：34.421 2102-32468 /？ V / FA-SVC：后台事件处理时间，ms：63 08-03 23：45：39.370 32422-32453 / com.example.india.chemistry V / FA：不活动，断开与服务的连接