android framework 源码流程分析技巧

直接分析代码流程，和在代码中添加相关log验证；这个方法要求开发人员专业水平较高，APP代码->framework源码，framework->APP代码；

高效方法：

在方法中添加异常，异常log会打印相关的代码流程；

具体代码：

protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.activity_main);  if(true){      try {          Log.d("yanbing2","he");          throw new Exception();      } catch (Exception e) {          e.printStackTrace();      }  }}

在log中打印： onCreate()启动流程

08-01 01:09:37.570 2913 2913 W System.err: java.lang.Exception
08-01 01:09:37.571 2913 2913 W System.err: at com.example.dengyanbing.jobscheduler.MainActivity.onCreate(MainActivity.java:24)
08-01 01:09:37.572 2913 2913 W System.err: at android.app.Activity.performCreate(Activity.java:7023)
08-01 01:09:37.572 2913 2913 W System.err: at android.app.Activity.performCreate(Activity.java:7014)
08-01 01:09:37.573 2913 2913 W System.err: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1214)
08-01 01:09:37.574 2913 2913 W System.err: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2758)
08-01 01:09:37.574 2913 2913 W System.err: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2883)
08-01 01:09:37.575 2913 2913 W System.err: at android.app.ActivityThread.-wrap11(Unknown Source:0)
08-01 01:09:37.575 2913 2913 W System.err: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1613)
08-01 01:09:37.576 2913 2913 W System.err: at android.os.Handler.dispatchMessage(Handler.java:106)
08-01 01:09:37.577 2913 2913 W System.err: at android.os.Looper.loop(Looper.java:164)
08-01 01:09:37.577 2913 2913 W System.err: at android.app.ActivityThread.main(ActivityThread.java:6523)
08-01 01:09:37.578 2913 2913 W System.err: at java.lang.reflect.Method.invoke(Native Method)
08-01 01:09:37.578 2913 2913 W System.err: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
08-01 01:09:37.579 2913 2913 W System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:857)

更多相关文章

随机推荐