105 lines
4.2 KiB
Kotlin
105 lines
4.2 KiB
Kotlin
package com.gh.common.util
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import android.app.Activity
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import android.content.Context
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import android.content.Intent
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import android.os.Parcelable
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import androidx.fragment.app.Fragment
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import com.gh.gamecenter.common.annotation.Synchronize
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import com.gh.common.util.SyncDataBetweenPageHelper.resultHandle
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import com.gh.common.util.SyncDataBetweenPageHelper.startActivityForResult
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import com.gh.gamecenter.entity.RatingComment
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import com.gh.gamecenter.gamedetail.rating.RatingAdapter
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import com.gh.gamecenter.gamedetail.rating.RatingReplyActivity
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/**
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* 页面之间实现数据同步（前提：页面之前拥有同一个数据实体）
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* 需要同步的数据,在相应的字段加上[Synchronize]注解,关键方法[resultHandle]
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* 如无特殊情况,尽量使用下面方法进行页面联动
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* 注意: [startActivityForResult] intent的数据实体key必须是Class的SimpleName
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* ----------------------------------------------------------------
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* 具体参考(游戏详情:评论列表<-->评论详情):
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* 数据实体=>[RatingComment]
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* 回调数据=>[RatingReplyActivity.handleBackPressed]
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* 回调处理=>[RatingAdapter.handleSyncData]
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*/
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object SyncDataBetweenPageHelper {
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const val REQUEST_CODE_TAG = "REQUEST_CODE_TAG"
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const val DATA_POSITION_TAG = "DATA_POSITION_TAG"
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private const val DEFAULT_NUMBER = -1111
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fun startActivityForResult(context: Context, intent: Intent, requestCode: Int, dataPosition: Int) {
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if (context is Activity) {
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intent.putExtra(DATA_POSITION_TAG, dataPosition)
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intent.putExtra(REQUEST_CODE_TAG, requestCode)
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context.startActivityForResult(intent, requestCode)
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}
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}
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fun startActivityForResult(fragment: Fragment, intent: Intent, requestCode: Int, dataPosition: Int) {
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intent.putExtra(DATA_POSITION_TAG, dataPosition)
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intent.putExtra(REQUEST_CODE_TAG, requestCode)
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fragment.startActivityForResult(intent, requestCode)
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}
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fun <T : Parcelable> setResultAndFinish(
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context: Context,
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syncData: T?,
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resultCode: Int = Activity.RESULT_OK
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): Boolean {
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if (context is Activity) {
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val requestCode = context.intent.getIntExtra(REQUEST_CODE_TAG, DEFAULT_NUMBER)
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val dataPosition = context.intent.getIntExtra(DATA_POSITION_TAG, DEFAULT_NUMBER)
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if (syncData != null && requestCode != DEFAULT_NUMBER) {
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val intent = Intent()
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intent.putExtra(DATA_POSITION_TAG, dataPosition)
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intent.putExtra(syncData::class.java.simpleName, syncData)
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context.setResult(resultCode, intent)
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context.finish()
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return true
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}
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}
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return false
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}
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fun <T : Parcelable> resultHandle(intent: Intent?, callback: OnSyncCallBack<T>) {
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if (intent == null) return
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val dataPosition = intent.getIntExtra(DATA_POSITION_TAG, DEFAULT_NUMBER)
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val syncData = callback.onData(dataPosition) ?: return
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val resultData = intent.getParcelableExtra<T>(syncData::class.java.simpleName)
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val fields = syncData::class.java.declaredFields
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var isNeedNotify = false
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for (field in fields) {
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if (field.getAnnotation(Synchronize::class.java) != null && resultData != null) {
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// 同步数据
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val resultField = resultData::class.java.getDeclaredField(field.name)
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resultField.isAccessible = true
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field.isAccessible = true
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val resultFieldDate = resultField.get(resultData)
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if (field.get(syncData) != resultFieldDate) {
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field.set(syncData, resultFieldDate)
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if (!isNeedNotify) isNeedNotify = true
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}
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}
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}
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if (isNeedNotify) callback.onNotify(dataPosition)
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}
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}
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/**
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* dataPosition: 数据位置,和[SyncDataBetweenPageHelper.startActivityForResult] 的dataPosition对应
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* [onData]: 返回需要同步的原数据
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* [onNotify]: 同步完成后刷新页面,如果数据没有更改的话就不会触发(如果标记的不是基本数据类型有可能会触发)
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*/
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interface OnSyncCallBack<T> {
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fun onData(dataPosition: Int): T?
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fun onNotify(dataPosition: Int)
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} |