Android原理分析_第4页-阿里云

Android应用程序组件Content Provider在应用程序之间共享数据的原理分析（3）

Step 11. CursorWindow.writeToParcel 这个函数定义在frameworks/base/core/java/android/database/CursorWindow.java文件中： publ...

Android应用程序组件Content Provider在应用程序之间共享数据的原理分析（4）

Step 16. CursorWindow.native_init 这个函数定义在frameworks/base/core/jni/android_database_CursorWindow.cpp文件中，对应的函数为nat...

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Android应用程序组件Content Provider在应用程序之间共享数据的原理分析（6）

Step 24. SQLiteCursor.getCount 这个函数定义在frameworks/base/core/java/android/database/sqlite...

Android帧缓冲区（Frame Buffer）硬件抽象层（HAL）模块Gralloc的实现原理分析（2）

函数load也是实现在文件hardware/libhardware/hardware.c文件中，如下所示： static int load(const char *id, &...

Android帧缓冲区（Frame Buffer）硬件抽象层（HAL）模块Gralloc的实现原理分析（3）

结构体gralloc_module_t定义在文件hardware/libhardware/include/hardware/gralloc.h中，它主要是定义了四个用来操作图形缓冲区的成员函数，如下所示： typedef struct gralloc_m...

Android帧缓冲区（Frame Buffer）硬件抽象层（HAL）模块Gralloc的实现原理分析（11）

为了完整性起见，最后我们再简要分析函数gralloc_lock和gralloc_unlock的实现，以便可以了解一个图形缓冲区的锁定和解锁操作是如何实现的。函数gralloc_lock实现在文件hardwa...

Android视图SurfaceView的实现原理分析

在Android系统中，有一种特殊的视图，称为SurfaceView，它拥有独立的绘图表面，即它不与其宿主窗口共享同一个绘图表面。由于拥有独立的绘图表面，因此SurfaceView的UI就可以在一个独立的线程中进行行绘制。又由于不占用主线程资源，SurfaceView一方面可...

[Android]任务列表中显示"小程序"的原理分析

今天被小程序刷屏了^^ 我也来凑凑热闹. 谈谈微信是怎么实现在任务列表中显示"小程序"的. 效果微信中打开了"滴滴(小程序)"后, 可以看到,任务列表不仅显示了"微信", 还显示了"滴滴(小程序)"的人口. 通过这个入口,就可以很方面的切换小程序了, 体验和原生程序也一样一样的. 分析下面简单分...

Android动画深入原理分析

动画分类 Android动画可以分3种：View动画，帧动画和属性动画；属性动画为API11的新特性，在低版本是无法直接使用属性动画的，但可以用nineoldAndroids来实现（但是本质还是viiew动画）。学习本篇内容主要掌握以下知识： 1,View动画以及自定义View动画。 2,View动...

Android--手机一键Root原理分析

Root的由来什么是Root?Root本身是指Linux系统的root帐户，该帐户拥有整个系统至高无上的权利，系统中的所有对象它都可以操作，对于Android手机用户来说的Root是指拥有Root权限，一般情况下，手机厂商出...

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更新时间 2024-04-24 09:49:03

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