Android判断所有字段是否已经输入的实例

package com.android.gesture.study_01_08;

import androidx.appcompat.app.AppCompatActivity;
import androidx.constraintlayout.widget.ConstraintLayout;

import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

public class Android_2Activity extends AppCompatActivity {

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_android_2);

  findViewById(R.id.btn_send).setOnClickListener(new View.OnClickListener() {
   @Override
   public void onClick(View v) {
    ConstraintLayout root = findViewById(R.id.android_root);
    for (int i = 0; i 

Calendar calendar = Calendar.getInstance();
int hour = calendar.get(Calendar.HOUR_OF_DAY);
int minute = calendar.get(Calendar.MINUTE);
int CurrentTimeTotalMinute = hour * 60 + minute;

 String[] two = time.split("-");
 String[] secOnd= two[1].split(":");
 int secOndTotalMinute= Integer.valueOf(second[0]) * 60 + Integer.valueOf(second[1]);