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.hprof,2.hprof) before and after operation, open with mat and get Histgram result6. Use the homepage field to filter the Histgram results and list the object instances of the class, and see that the collection of objects in the two tables is different in size, with one more homepage than before the operation, indicating there is a leak7. Compare the two lists to find an extra object and find out who strung the reference line, locating it, using the me
been terminated. Even worse, if the UI program is blocked for a few seconds (about 5s), the infamous ANR dialog box appears.If you want to see how bad it is, you can write a simple program with a button that clicks on the event execution Thread.Sleep (2000) code. The button will remain in the pressed state for 2 seconds and then return to its normal state. This makes it easy for users to feel that the program is slow.Now you know. Be sure to avoid long operations in the main thread, and you may
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Note: Local recognition is effective, but comparing the local recognition discovery parameters for iOS is different. In the implementation of the principle of functional priority to achieve functional effects. Please be aware of any changes in the local identification parameters later.Effect
Monocular slam
Picture tracking
Space Positioning (IMU)
Local identification (Resource bundle see: Cloudir.zip)
the above address to install ADT and CDT online for compilation.
Note:
The following is the configuration of a specific ndk Project (hello-JNI). You need to place the builder created by ndk in the first one (the newly added builder is set to ndk_builder)
In this way, the IDE will first compile the ndk file when compiling this project. Hello-JNI example
Compile ndkLibrary files
In eclipseOpen project [Because ndkIDEThe function is not very powerful, and CDT can be disabled.,
Use and creation of android VelocityTracker, and velocitytracker
VelocityTracker Speed Tracking
1. Creation method:
VelocityTracker mVelocityTracker = new VelocityTracker. obtain ()
Second, register the MotionEvent you want to pursue to the VelocityTracker listener:
MVelocityTracker. addMovement (event );
Third, set the unit of VelocityTracker. 1000 indicat
parameter is used to determine how many particles are generated using the first parameter as the template in the particle pool for the system to call at any time, the third parameter is the maximum number of particles in the particle pool. Below we implement the particle touch tracking simulation function, first we need to capture the touch event. And we are faced with a very realistic problem: Where do we capture touch events? To know that libgdx an
Android-eclipse tips for use a Code accessibility featureShow line NumbersCode hintsQuick NotesLine Comment ctrl+/Block Comment ctrl+shift+/Remove ctrl+shift+\ Quick Switch edit windowCtrl+f6 Uppercase Lowercase letter ToggleCtrl+shift+y all converted to lowercaseCtrl+shift+x all uppercase, conflict with 360 working with line codesALT + arrow key up and down to move up or downAlt+shift+ arrow keys up and do
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