在android开发中,fragment 生命周期


在Android开发中,Fragment是Activity的重要组成部分,它可以包含一些用户界面元素和业务逻辑。每个Fragment都有其自己的生命周期,即Fragment的生命周期包括以下六个阶段: 1. onCreate():这是Fragment的初始化阶段。在这个阶段,Fragment的实例会被创建,并且可以在这个阶段做一些初始化的操作。 2. onCreateView():在这个阶段,Fragment会创建并返回一个View对象,这个View对象会被添加到Activity的布局中。这个阶段通常会调用onCreate()方法。 3. onActivityCreated():在这个阶段,Fragment的视图已经创建完毕,并且可以在这个阶段做一些进一步的初始化操作。这个阶段通常会调用onCreateView()方法。 4. onStart():在这个阶段,Fragment的视图已经被显示在屏幕上。这个阶段通常会调用onActivityCreated()方法。 5. onResume():在这个阶段,Fragment已经成为了Activity的焦点,可以在这个阶段做一些更复杂的操作。 6. onPause():在这个阶段,Fragment的视图会被暂时隐藏,但是不会被销毁。这个阶段通常会调用onResume()方法。 7. onStop():在这个阶段,Fragment的视图已经被完全隐藏,但是不会被销毁。这个阶段通常会调用onPause()方法。 8. onDestroyView():在这个阶段,Fragment的视图已经被完全销毁,可以在这个阶段做一些清理工作。 9. onDestroy():在这个阶段,Fragment的所有资源都会被释放,可以在这个阶段做一些清理工作。 10. onDetach():在这个阶段,Fragment被从Activity中移除,可以在这个阶段做一些清理工作。 以上就是Fragment的生命周期,开发者需要根据这些生命周期阶段来设计Fragment的代码,以保证Fragment的正确性和稳定性。 [2023-11-07 22:36:00 | AI写代码神器 | 384点数解答]
- package com.example.weather; import android.content.context; import android.media.mediaplayer; import android.net.uri; import android.os.bundle; import android.util.log; import android.view.layoutinflater; import android.view.view; import android.view.viewgroup; import android.webkit.websettings; import android.webkit.webview; import android.webkit.webviewclient; import android.widget.videoview; import androidx.fragment.app.fragment; public class realtimemonitoringfragment extends fragment {(30点数解答 | 2024-10-12 10:31:18)226
- package com.example.weather; import android.content.context; import android.media.mediaplayer; import android.net.uri; import android.os.bundle; import android.util.log; import android.view.layoutinflater; import android.view.view; import android.view.viewgroup; import android.webkit.websettings; import android.webkit.webview; import android.webkit.webviewclient; import android.widget.videoview; import androidx.fragment.app.fragment; public class realtimemonitoringfragment extends fragment {(531点数解答 | 2024-10-12 10:32:25)205
- 如何用aide编写的xposed软件拦截一个smail类里面的方法名,请参考如下代码进行修改达到效果 import android.content.*; import android.graphics.*; import android.os.*; import android.widget.*; import de.robv.android.xposed.*; import de.robv.android.xposed.callbacks.*; import java.util.*; import android.app.*; /* 注意:该类不要自己写构造方法,否者可能会hook不成功 * 开发xposed模块完成以后,关闭bebug以提升性能 * debug模式只需要第一次重启,以后修改hook代码就不用重启了 */ public class xposed implements ixposedhookloadpackage { public static activity 上下文; @override public void handleloadpackage(x(649点数解答 | 2024-10-12 00:15:48)215
- 在android开发中,fragment 生命周期(384点数解答 | 2023-11-07 22:36:00)213
- .method public setupplayer(lcn/subat/music/model/spplayconfig;ljava/lang/string;i)v .registers 6 .line 299 iget-object v0, p0, lcn/subat/music/fragment/player/spmovieplayerfragment;->covermask:lcn/subat/music/base/spconstraintlayout; const/16 v1, 0x8 invoke-virtual {v0, v1}, lcn/subat/music/base/spconstraintlayout;->setvisibility(i)v .line 300 iget-object v0, p0, lcn/subat/music/fragment/player/spmovieplayerfragment;->sharetip:lcn/subat/music/base/sptextview;(29点数解答 | 2024-11-05 01:36:35)208
- .method public 按钮1$被弹起(ii)v .locals 4 .param p1, "\u6a2a\u5750\u6807" # i .param p2, "\u7eb5\u5750\u6807" # i .prologue .line 20 new-instance v0, ljava/lang/stringbuilder; invoke-direct {v0}, ljava/lang/stringbuilder;-><init>()v iget-object v1, p0, lcom/chuchenqi/窗口29;->手机1:lcom/e4a/runtime/components/impl/android/n9/手机; invoke-interface {v1}, lcom/e4a/runtime/components/impl/android/n9/手机;->取imei码()ljava/lang/string; move-result-object v1(208点数解答 | 2024-09-12 16:36:31)264
- 分析一下这段代码: // __multiversion__ // this signals the loading code to prepend either #version 100 or #version 300 es as apropriate. // to use centroid sampling we need to have version 300 es shaders, which requires changing: // attribute to in // varying to out when in vertex shaders or in when in fragment shaders // defining an out vec4 fragcolor and replacing uses of gl_fragcolor with fragcolor // texture2d to texture #if __version__ >= 300 #define attribute in #define varying out #ifdef msaa_fr(260点数解答 | 2024-10-19 19:42:17)219
- 分析一下这段 opengl vertex的代码: // __multiversion__ // this signals the loading code to prepend either #version 100 or #version 300 es as apropriate. // to use centroid sampling we need to have version 300 es shaders, which requires changing: // attribute to in // varying to out when in vertex shaders or in when in fragment shaders // defining an out vec4 fragcolor and replacing uses of gl_fragcolor with fragcolor // texture2d to texture #if __version__ >= 300 #define attribute in #define varying out(191点数解答 | 2024-10-19 19:43:44)203
- 分析一下这段代码(vertex着色器): // __multiversion__ // this signals the loading code to prepend either #version 100 or #version 300 es as apropriate. // to use centroid sampling we need to have version 300 es shaders, which requires changing: // attribute to in // varying to out when in vertex shaders or in when in fragment shaders // defining an out vec4 fragcolor and replacing uses of gl_fragcolor with fragcolor // texture2d to texture #if __version__ >= 300 #define attribute in #define varying out #if(223点数解答 | 2024-10-19 19:50:37)274
- // __multiversion__ // this signals the loading code to prepend either #version 100 or #version 300 es as apropriate. // to use centroid sampling we need to have version 300 es shaders, which requires changing: // attribute to in // varying to out when in vertex shaders or in when in fragment shaders // defining an out vec4 fragcolor and replacing uses of gl_fragcolor with fragcolor // texture2d to texture #if __version__ >= 300 // version 300 code #define varying in #define texture2d texture(45点数解答 | 2024-12-14 17:33:30)144
- // __multiversion__ // this signals the loading code to prepend either #version 100 or #version 300 es as apropriate. // to use centroid sampling we need to have version 300 es shaders, which requires changing: // attribute to in // varying to out when in vertex shaders or in when in fragment shaders // defining an out vec4 fragcolor and replacing uses of gl_fragcolor with fragcolor // texture2d to texture #if __version__ >= 300 // version 300 code #define varying in #define texture2d texture(356点数解答 | 2024-12-14 17:34:20)177
- // __multiversion__ // this signals the loading code to prepend either #version 100 or #version 300 es as apropriate. // to use centroid sampling we need to have version 300 es shaders, which requires changing: // attribute to in // varying to out when in vertex shaders or in when in fragment shaders // defining an out vec4 fragcolor and replacing uses of gl_fragcolor with fragcolor // texture2d to texture #if __version__ >= 300 // version 300 code #define varying in #define texture2d texture(111点数解答 | 2024-12-14 17:34:20)196