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android如何实现限制某个操作每天只能操作指定的次数

这篇文章主要讲解了android如何实现限制某个操作每天只能操作指定的次数,内容清晰明了,对此有兴趣的小伙伴可以学习一下,相信大家阅读完之后会有帮助。

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最近有个需求,要求启动页的拦截页每天只能显示3次,超过三次就显示别的页面,然后到第二天才可以再次显示,利用SharePreferences保存天数和每天的次数,大概是思路是:判断 如果是同一天,就去拿保存的次数,当次数小于3才执弹出拦截页,然后,每次弹出,次数就加1,并且保存次数和当天的时间;如果不是同一天,就把次数赋值为1,并且把当天赋值给最后访问的时间,然后保存当前的次数。具体实现如下:

package com.example.demo1.test;
 
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
 
import com.example.demo1.R;
 
import java.util.Calendar;
 
public class TwoActivity extends AppCompatActivity {
 private static final String TAG = "TwoActivity";
 
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_two);
 findViewById(R.id.test).setOnClickListener(new View.OnClickListener() {
  @Override
  public void onClick(View view) {
 
  int frequency = SharePreferencesUtils.getIntValue(TwoActivity.this,"time_and_frequency","frequency");
  int today = Calendar.getInstance().get(Calendar.DAY_OF_YEAR);
  int lastDay = SharePreferencesUtils.getIntValue(TwoActivity.this,"time_and_frequency","lastDay");
  Log.i(TAG, "onClick-----: "+"today:"+today);
  Log.i(TAG, "onClick-----: "+"lastDay:"+lastDay);
  Log.i(TAG, "onClick-----: "+"frequency:"+frequency);
  if(today != lastDay)
  {
   //TODO执行拦截页操作;
 
   //修改SharePreferences日期为当前日期,并记录次数一次;
   frequency = 1;
   Log.i(TAG, "onClick-----: "+"不是同一天执行次数"+frequency);
   //把today赋值给lastDay 让today == lastDay
   SharePreferencesUtils.putIntValue(TwoActivity.this,"time_and_frequency","lastDay",today);
   SharePreferencesUtils.putIntValue(TwoActivity.this,"time_and_frequency","frequency",frequency);
  }else if(today == lastDay){
   if(frequency < 3) {
   //TODO执行拦截页操作;
   Log.i(TAG, "onClick-----: "+"同一天执行次数"+frequency);
   frequency++;
   SharePreferencesUtils.putIntValue(TwoActivity.this,"time_and_frequency","lastDay",lastDay);
    SharePreferencesUtils.putIntValue(TwoActivity.this,"time_and_frequency","frequency",frequency);
   }else {
   //TODO执行别的操作
   Log.i(TAG, "onClick-----: "+"超过三次");
   }
  }
  }
 });
 }
}

SharePreferencesUtils代码如下:

/*
 * Copyright (c) 2017- WaitFun Inc. All Rights Reserved.
 */

package com.example.demo1.test;
import android.app.Activity;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import java.util.Map;
public class SharePreferencesUtils {
 private final static String TAG = SharePreferencesUtils.class.getName();
 private final static SharedPreferences getSharePreferences(Context context, String fileName) {
 return context.getSharedPreferences(fileName, Activity.MODE_PRIVATE);
 }
 public static String getStrValue(Context context, String fileName, String key) {
 return getSharePreferences(context, fileName).getString(key, "");
 }
 public static int getIntValue(Context context, String fileName, String key) {
 return getSharePreferences(context, fileName).getInt(key, 0);
 }
 public static boolean getBooleanValue(Context context, String fileName, String key) {
 return getSharePreferences(context, fileName).getBoolean(key, false);
 }
 public static void putBooleanValue(Context context, String fileName, String key, boolean value) {
 Editor editor = getSharePreferences(context, fileName).edit();
 editor.putBoolean(key, value);
 editor.commit();
 editor.clear();
 editor = null;
 }
 public static void putStringValue(Context context, String fileName, String key, String value) {
 Editor editor = getSharePreferences(context, fileName).edit();
 editor.putString(key, value);
 editor.commit();
 editor.clear();
 editor = null;
 }
 public static void putIntValue(Context context, String fileName, String key, int value) {
 Editor editor = getSharePreferences(context, fileName).edit();
 editor.putInt(key, value);
 editor.commit();
 editor.clear();
 editor = null;
 }
 public static void putMapStringValue(Context context, String fileName, Map editorValue) {
 Editor editor = getSharePreferences(context, fileName).edit();
 for (Map.Entry entry : editorValue.entrySet()) {
  String key = entry.getKey();
  String value = entry.getValue();
  editor.putString(key, value);
 }
 editor.commit();
 editorValue.clear();
 editorValue = null;
 }
 public static void putMapIntegerValue(Context context, String fileName, Map editorValue) {
 Editor editor = getSharePreferences(context, fileName).edit();
 for (Map.Entry entry : editorValue.entrySet()) {
  String key = entry.getKey();
  Integer value = entry.getValue();
  editor.putInt(key, value);
 }
 editor.commit();
 editorValue.clear();
 editorValue = null;
 }
}

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