工欲善其事必先利其器，磨刀不誤砍柴工
最近打算去深讀原始碼，感覺不畫圖去分析原始碼根本理不清，也說不清
UML是分析類和類的關係，具體的類內部貌似沒有圖形機制，沒有條件就創造條件唄
藉此機會本人自定義一套圖形繪圖表示規範，並恬不知恥地稱為捷型圖
目的為了明確各種元素的圖形表示，來表述與分析原始碼具體執行邏輯
為了避免每張圖都加個圖例，這裡成文統一描述一下
一、常用表示
1.訪問限制型別
無形狀限定，修飾中(左上角)見色如見人
2.常見修飾符
三角形，放在左上角
3.類相關
4.方法與變數
5.關聯線
表述無歧義情況下箭頭,數字可略
6.uml線
二.其他不常用:
1.第一組
//待續…
三、幾個小例子說明一下
1.類例子
ActivityThread是一個public final的普通類ApplicationThread 是一個private的內部類 , 並處於 ActivityThread中複製程式碼
2.方法與變數例子
3.sendBroadcast的第一層關係
在Activity中呼叫sendBroadcast，會呼叫ContextWrapper的sendBroadcast方法sendBroadcast會使用ContextWrapper的成員變數mBase的sendBroadcast方法而mBase實際上來源於ContextImpl，而ContextImpl是一個Context類，ContextImpl的sendBroadcast方法呼叫ActivityManagerNative.getDefault().broadcastIntent傳送廣播 這樣就將工作焦點指向ActivityManagerNative，可以進行第二層的繪製，也就是分析ActivityManagerNative，上面的四行話解釋和下面的圖你更喜歡哪個? 成年人的世界沒有單選題，當然選擇都要，圖文結合，更能形象說明複製程式碼
4.捷型圖示例
下圖是基於下面類繪製的圖形，有什麼好的意見或建議歡迎留言，
目前使用processon線上繪圖工具，以後有時間開發個小軟體來繪製感覺挺不錯，
再加個一鍵生成什麼的就更棒了…
/* * This file is auto-generated. DO NOT MODIFY. * Original file: J:\\Java\\Android\\LeverUp\\TolyService\\app\\src\\main\\aidl\\com\\toly1994\\tolyservice\\IMusicPlayerService.aidl */package com.toly1994.tolyservice;
// Declare any non-default types here with import statementspublic interface IMusicPlayerService extends android.os.IInterface {
/** * Local-side IPC implementation stub class. */ public static abstract class Stub extends android.os.Binder implements com.toly1994.tolyservice.IMusicPlayerService {
private static final java.lang.String DESCRIPTOR = "com.toly1994.tolyservice.IMusicPlayerService";
/** * Construct the stub at attach it to the interface. */ public Stub() {
this.attachInterface(this, DESCRIPTOR);
} /** * Cast an IBinder object into an com.toly1994.tolyservice.IMusicPlayerService interface, * generating a proxy if needed. */ public static com.toly1994.tolyservice.IMusicPlayerService asInterface(android.os.IBinder obj) {
if ((obj == null)) {
return null;
} android.os.IInterface iin = obj.queryLocalInterface(DESCRIPTOR);
if (((iin != null) &
&
(iin instanceof com.toly1994.tolyservice.IMusicPlayerService))) {
return ((com.toly1994.tolyservice.IMusicPlayerService) iin);
} return new com.toly1994.tolyservice.IMusicPlayerService.Stub.Proxy(obj);
} @Override public android.os.IBinder asBinder() {
return this;
} @Override public boolean onTransact(int code, android.os.Parcel data, android.os.Parcel reply, int flags) throws android.os.RemoteException {
java.lang.String descriptor = DESCRIPTOR;
switch (code) {
case INTERFACE_TRANSACTION: {
reply.writeString(descriptor);
return true;
} case TRANSACTION_stop: {
data.enforceInterface(descriptor);
this.stop();
reply.writeNoException();
return true;
} case TRANSACTION_pause: {
data.enforceInterface(descriptor);
this.pause();
reply.writeNoException();
return true;
} case TRANSACTION_start: {
data.enforceInterface(descriptor);
this.start();
reply.writeNoException();
return true;
} case TRANSACTION_prev: {
data.enforceInterface(descriptor);
this.prev();
reply.writeNoException();
return true;
} case TRANSACTION_next: {
data.enforceInterface(descriptor);
this.next();
reply.writeNoException();
return true;
} case TRANSACTION_release: {
data.enforceInterface(descriptor);
this.release();
reply.writeNoException();
return true;
} case TRANSACTION_isPlaying: {
data.enforceInterface(descriptor);
boolean _result = this.isPlaying();
reply.writeNoException();
reply.writeInt(((_result) ? (1) : (0)));
return true;
} case TRANSACTION_seek: {
data.enforceInterface(descriptor);
int _arg0;
_arg0 = data.readInt();
this.seek(_arg0);
reply.writeNoException();
return true;
} case TRANSACTION_create: {
data.enforceInterface(descriptor);
java.util.List<
java.lang.String>
_arg0;
_arg0 = data.createStringArrayList();
this.create(_arg0);
reply.writeNoException();
return true;
} default: {
return super.onTransact(code, data, reply, flags);
}
}
} private static class Proxy implements com.toly1994.tolyservice.IMusicPlayerService {
private android.os.IBinder mRemote;
Proxy(android.os.IBinder remote) {
mRemote = remote;
} @Override public android.os.IBinder asBinder() {
return mRemote;
} public java.lang.String getInterfaceDescriptor() {
return DESCRIPTOR;
} /** * Demonstrates some basic types that you can use as parameters * and return values in AIDL. */ @Override public void stop() throws android.os.RemoteException {
android.os.Parcel _data = android.os.Parcel.obtain();
android.os.Parcel _reply = android.os.Parcel.obtain();
try {
_data.writeInterfaceToken(DESCRIPTOR);
mRemote.transact(Stub.TRANSACTION_stop, _data, _reply, 0);
_reply.readException();
} finally {
_reply.recycle();
_data.recycle();
}
} @Override public void pause() throws android.os.RemoteException {
android.os.Parcel _data = android.os.Parcel.obtain();
android.os.Parcel _reply = android.os.Parcel.obtain();
try {
_data.writeInterfaceToken(DESCRIPTOR);
mRemote.transact(Stub.TRANSACTION_pause, _data, _reply, 0);
_reply.readException();
} finally {
_reply.recycle();
_data.recycle();
}
} @Override public void start() throws android.os.RemoteException {
android.os.Parcel _data = android.os.Parcel.obtain();
android.os.Parcel _reply = android.os.Parcel.obtain();
try {
_data.writeInterfaceToken(DESCRIPTOR);
mRemote.transact(Stub.TRANSACTION_start, _data, _reply, 0);
_reply.readException();
} finally {
_reply.recycle();
_data.recycle();
}
} @Override public void prev() throws android.os.RemoteException {
android.os.Parcel _data = android.os.Parcel.obtain();
android.os.Parcel _reply = android.os.Parcel.obtain();
try {
_data.writeInterfaceToken(DESCRIPTOR);
mRemote.transact(Stub.TRANSACTION_prev, _data, _reply, 0);
_reply.readException();
} finally {
_reply.recycle();
_data.recycle();
}
} @Override public void next() throws android.os.RemoteException {
android.os.Parcel _data = android.os.Parcel.obtain();
android.os.Parcel _reply = android.os.Parcel.obtain();
try {
_data.writeInterfaceToken(DESCRIPTOR);
mRemote.transact(Stub.TRANSACTION_next, _data, _reply, 0);
_reply.readException();
} finally {
_reply.recycle();
_data.recycle();
}
} @Override public void release() throws android.os.RemoteException {
android.os.Parcel _data = android.os.Parcel.obtain();
android.os.Parcel _reply = android.os.Parcel.obtain();
try {
_data.writeInterfaceToken(DESCRIPTOR);
mRemote.transact(Stub.TRANSACTION_release, _data, _reply, 0);
_reply.readException();
} finally {
_reply.recycle();
_data.recycle();
}
} @Override public boolean isPlaying() throws android.os.RemoteException {
android.os.Parcel _data = android.os.Parcel.obtain();
android.os.Parcel _reply = android.os.Parcel.obtain();
boolean _result;
try {
_data.writeInterfaceToken(DESCRIPTOR);
mRemote.transact(Stub.TRANSACTION_isPlaying, _data, _reply, 0);
_reply.readException();
_result = (0 != _reply.readInt());
} finally {
_reply.recycle();
_data.recycle();
} return _result;
} @Override public void seek(int pre_100) throws android.os.RemoteException {
android.os.Parcel _data = android.os.Parcel.obtain();
android.os.Parcel _reply = android.os.Parcel.obtain();
try {
_data.writeInterfaceToken(DESCRIPTOR);
_data.writeInt(pre_100);
mRemote.transact(Stub.TRANSACTION_seek, _data, _reply, 0);
_reply.readException();
} finally {
_reply.recycle();
_data.recycle();
}
}//加in @Override public void create(java.util.List<
java.lang.String>
filePaths) throws android.os.RemoteException {
android.os.Parcel _data = android.os.Parcel.obtain();
android.os.Parcel _reply = android.os.Parcel.obtain();
try {
_data.writeInterfaceToken(DESCRIPTOR);
_data.writeStringList(filePaths);
mRemote.transact(Stub.TRANSACTION_create, _data, _reply, 0);
_reply.readException();
} finally {
_reply.recycle();
_data.recycle();
}
}
} static final int TRANSACTION_stop = (android.os.IBinder.FIRST_CALL_TRANSACTION + 0);
static final int TRANSACTION_pause = (android.os.IBinder.FIRST_CALL_TRANSACTION + 1);
static final int TRANSACTION_start = (android.os.IBinder.FIRST_CALL_TRANSACTION + 2);
static final int TRANSACTION_prev = (android.os.IBinder.FIRST_CALL_TRANSACTION + 3);
static final int TRANSACTION_next = (android.os.IBinder.FIRST_CALL_TRANSACTION + 4);
static final int TRANSACTION_release = (android.os.IBinder.FIRST_CALL_TRANSACTION + 5);
static final int TRANSACTION_isPlaying = (android.os.IBinder.FIRST_CALL_TRANSACTION + 6);
static final int TRANSACTION_seek = (android.os.IBinder.FIRST_CALL_TRANSACTION + 7);
static final int TRANSACTION_create = (android.os.IBinder.FIRST_CALL_TRANSACTION + 8);
} /** * Demonstrates some basic types that you can use as parameters * and return values in AIDL. */ public void stop() throws android.os.RemoteException;
public void pause() throws android.os.RemoteException;
public void start() throws android.os.RemoteException;
public void prev() throws android.os.RemoteException;
public void next() throws android.os.RemoteException;
public void release() throws android.os.RemoteException;
public boolean isPlaying() throws android.os.RemoteException;
public void seek(int pre_100) throws android.os.RemoteException;
//加in public void create(java.util.List<
java.lang.String>
filePaths) throws android.os.RemoteException;
}複製程式碼