android event log viewer

screen;Red is the middle area, which belongs to a layer of white;Black is the central area and must be a layer in the red.Note: They are essentially: linearlayout, not relativelayout or other layouts.1. Handle touch events from the central areaThe layout file is as follows: Android:layout_width= "Fill_parent" android:layout_height= "Fill_parent" android:orientation= "Vertical" > Android:id= "@+id/view_out" Android:layout_width= "Fill_parent" android:layout_height= "Fill_p

Android event distribution mechanism source code analysis I am a little touched by the fact that I have been using android for some time. I have always been used to organizing my notes and saving my notes on youdao. I have no habit of writing a blog. In the future, we will sort it out gradually, and we will also calculate "Review -_-.

be seen that only a 3 events were processed, and the event was intercepted by a. The flowchart is as follows:Similarly, the return value of a is changed back, we modify the MYVIEWGROUPB onintercepttouchevent () method, also returns True, and then click MyView or MYVIEWGROUPB, try. The log output is as follows:That is, the event is only distributed to MYVIEWGROUP

are overridden in the activity, and the button-binding point-and-click event listeners are as follows:@Override Public Booleandispatchtouchevent (motionevent ev) {Switch(Ev.getaction ()) { Casemotionevent.action_down:log.i (TAG,"The Dispatchtouchevent of activity performed: Action_down"); Break; Casemotionevent.action_move:log.i (TAG,"The Dispatchtouchevent of activity performed: Action_move"); Break; Casemotionevent.action_up:log.i (TAG,"The Dis

intercepted by the general Manager (Myviewgroupa) onintercepttouchevent () method, i.e. let the Onintercepttouchevent () method return a value of true, and then look at log:1 d/myviewgroupa:viewgroupa dispatchtouchevent2 d/Myviewgroupa:viewgroupa Onintercepttouchevent3 d/myviewgroupa:myviewgroupa ontoucheventHypothesis 2: the Minister (MYVIEWGROUPB) found the task too simple, felt that he could finish it, and had no need to look for subordinates at a

area and must be a layer in the red.Note: They are essentially: linearlayout, not relativelayout or other layouts.1. Handle touch events from the central areaThe layout file is as follows: Android:layout_width= "Fill_parent" android:layout_height= "Fill_parent" android:orientation= "Vertical" > Android:id= "@+id/view_out" Android:layout_width= "Fill_parent" android:layout_height= "Fill_parent" Android:background= "#fff" android:gravity= "Center" > Android:id= "@+

on view The event distribution mechanism of the view has been very faint, and today it is here to comb MyViewFirst inherit the view class and customize a myview. And when initializing the view class can be clicked, here from the view Click event Distribution point of view, so do not consider drawing, measuring the implementation of related methods. Public class MyView extends View {String

is as follows: Android:layout_width= "Fill_parent" android:layout_height= "Fill_parent" android:orientation= "Vertical" > Android:id= "@+id/view_out" Android:layout_width= "Fill_parent" android:layout_height= "Fill_parent" Android:background= "#fff" android:gravity= "Center" > Android:id= "@+id/view_mid" Android:layout_width= "300px" android:layout_height= "400px" Android:background= "#f00" android:gravity= "Center" > Android:id= "@+id/view_center"

Common android dead-end problems-Log Analysis ========================================================== ========================================================== ==============================In normal work, a lot of code can be debugged in eclipse + ndk, but if you need to use specific hardware devices, such as media playback devices that cannot be simulated, debugging can only be performed on hardware (

Android callback-based event processing Abstract: no matter whether it is a desktop or mobile app, the most common problem is that users often need to handle user actions-that is, they need to provide responses to user actions. Event processing is a mechanism that provides responses to user actions.Android provides a powerful

. TextView;Import android. widget. ViewFlipper;Public class Flip extends Activity implements OnGestureListener {PrivateGestureDetector detector;PrivateViewFlipper flipper;@ OverridePublic voidonCreate (Bundle savedInstanceState ){Super. onCreate (savedInstanceState );SetContentView (R. layout. main );Flipper= (ViewFlipper) this. findViewById (R. id. ViewFlipper01 );Flipper. addView (addButtonByText ("button"), newLayoutParams (LayoutParams. FILL_PAREN

In the process of program development, log is a widely used mechanism for recording program execution, which can be used for both program debugging and event recording in product operations. The Android system provides a simple, convenient log mechanism that developers can use easily. In peacetime development process o

@Override public boolean OnTouch (View V, Final motionevent event) {Checkablebutton cb = (Checkablebutton) v;if (CB. Iseditable()) {int action = Event. Getaction();Rect outrect = new Rect ();Getactivity (). GetWindow(). Findviewbyid(Window. ID_android_content). Getdrawingrect(Outrect);ScreenWidth = Outrect. Width();ScreenHeight = Outrect. Height();Switch (action) {case motionevent. ACTION_down:startx = V. G

Android EditText listening and length monitoring event, androidedittext Package com. example. yanlei. yl2; import android. app. alertDialog; import android. content. dialogInterface; import android. content. dialogInterface. onKeyListener; import

In the process of program development, log is a widely used mechanism for documenting program execution, which can be used for both program debugging and event logging in product operations. The Android system provides a simple, convenient log mechanism that developers can easily use. This article briefly describes the

Please respect the results of the sharing, reproduced please indicate the source:http://blog.csdn.net/hejjunlin/article/details/52282833View layout is over, from the beginning of this article view event correlation analysis, today is analyzing the view of the event distribution mechanism (PS: The source code in this article is Android 6.0, please know) D

, with the-v option plus the contents listed below to control the output fields: brief-displays the precedence/markup and PID of the original process (default format)process-only show Process PIDtag-Show priority/Tag onlythread-Show only processes: threads and priorities/tagsraw-Display the original log information, no more metadata fieldstime-display date, call time, priority/tag, PIDlong-displays all of the metadata fields and separates the message

Android log Learning When will log files be generated? 1. The program unexpectedly exits the Uncaused Exception.2. The program forces Force Closed (FC) to close ).3. The program does not respond to Application No Response (ANR ). When Will ANR be generated? 1. Interface operations (such as Button clicking events) Wait for more than 5 seconds.2. the execution

than or equal to "Debug":ADB logcat activitymanager:i Powermanagerservice:d *:sNote: *:s is used to set the log priority for all tags to s, which ensures that only eligible logs are output.ADB logcat *:w//Show all logs with priority greater than or equal to "warning"ADB logcat-s powermanagerservice//Display Powermanagerservice log informationLogcat Command list:-D exit after displaying the

Android Learning key event Monitoring and command mode-dufresne-Blog Park Android Learning key event monitoring and command mode ? one Command mode Intention: Encapsulates a request as an object so that you can parameterize the customer with different requests; Queue or