2014/10/16 上午 08:19:13

android Programming Glossary: megabytes

http://stackoverflow.com/questions/1407442/android-sqlite-and-huge-data-sets

We are creating an app for a client that has hundreds of megabytes of HTML in SQLite databases. We have implemented a way to query..

How can I capture a video recording on Android?

http://stackoverflow.com/questions/1817742/how-can-i-capture-a-video-recording-on-android

50 seconds recorder.setMaxFileSize 5000000 Approximately 5 megabytes private void prepareRecorder recorder.setPreviewDisplay holder.getSurface..

Detect application heap size in Android

http://stackoverflow.com/questions/2630158/detect-application-heap-size-in-android

memoryClass This method tells you approximately how many megabytes of heap your app should use if it wants to be properly respectful.. maxMemory will typically return about the same number of megabytes as are indicated in getMemoryClass i.e. approximately a million.. memory. Finally if you do plan to go over the number of megabytes specified in getMemoryClass my advice would be to work long..

How to get current memory usage in android?

http://stackoverflow.com/questions/3170691/how-to-get-current-memory-usage-in-android

obvious that the number is used to convert from bytes to megabytes P.S we need to calculate total memory only once. so call point..

Android: how to increase heap size at runtime?

http://stackoverflow.com/questions/4119405/android-how-to-increase-heap-size-at-runtime

let the overall system work best. The returned value is in megabytes the baseline Android memory class is 16 which happens to be..

Android: Best way to save data stored in Application Singleton Class

http://stackoverflow.com/questions/6063550/android-best-way-to-save-data-stored-in-application-singleton-class

data storage unless the data is really big i.e. many megabytes and you prefer the external storage and keep the links only..

Does “Bitmap.createScaledBitmap” convert an 32 bit image into 24 bit?

http://stackoverflow.com/questions/6278992/does-bitmap-createscaledbitmap-convert-an-32-bit-image-into-24-bit

and Height of the original bitmap it is 1 2 of the size in megabytes I'm watching the heap size . Changing the value ARGB_8888 to.. value ARGB_8888 to RGB_565 24 bit gives the same size in megabytes after scaling. Can someone explain this phenomenon and may be..

Android SQLite and huge data sets

http://stackoverflow.com/questions/1407442/android-sqlite-and-huge-data-sets

SQLite and huge data sets We are creating an app for a client that has hundreds of megabytes of HTML in SQLite databases. We have implemented a way to query this data and scroll through it all in a reasonably fast..

How can I capture a video recording on Android?

http://stackoverflow.com/questions/1817742/how-can-i-capture-a-video-recording-on-android

videocapture_example.mp4 recorder.setMaxDuration 50000 50 seconds recorder.setMaxFileSize 5000000 Approximately 5 megabytes private void prepareRecorder recorder.setPreviewDisplay holder.getSurface try recorder.prepare catch IllegalStateException..

Detect application heap size in Android

http://stackoverflow.com/questions/2630158/detect-application-heap-size-in-android

am.getMemoryClass Log.v onCreate memoryClass Integer.toString memoryClass This method tells you approximately how many megabytes of heap your app should use if it wants to be properly respectful of the limits of the present device and of the rights.. is a correct interpretation. For a stock version of Android maxMemory will typically return about the same number of megabytes as are indicated in getMemoryClass i.e. approximately a million times the latter value . The only situation of which I am.. limit functionality for such devices in a way that conserves memory. Finally if you do plan to go over the number of megabytes specified in getMemoryClass my advice would be to work long and hard on the saving and restoring of your app's state so..

How to get current memory usage in android?

http://stackoverflow.com/questions/3170691/how-to-get-current-memory-usage-in-android

1024 kilobytes 1 megabyte 1024 1024 1048576 It's quite obvious that the number is used to convert from bytes to megabytes P.S we need to calculate total memory only once. so call point 1 only once in your code and then after you can call code..

Android: how to increase heap size at runtime?

http://stackoverflow.com/questions/4119405/android-how-to-increase-heap-size-at-runtime

a memory limit you should impose on your application to let the overall system work best. The returned value is in megabytes the baseline Android memory class is 16 which happens to be the Java heap limit of those devices some device with more memory..

Android: Best way to save data stored in Application Singleton Class

http://stackoverflow.com/questions/6063550/android-best-way-to-save-data-stored-in-application-singleton-class

but the approach I would take is to save them to the internal data storage unless the data is really big i.e. many megabytes and you prefer the external storage and keep the links only in the SharedPreferences. I don't know what your objects look..

Does “Bitmap.createScaledBitmap” convert an 32 bit image into 24 bit?

http://stackoverflow.com/questions/6278992/does-bitmap-createscaledbitmap-convert-an-32-bit-image-into-24-bit

mBitmap iW iH true If I use for scaling the same Width and Height of the original bitmap it is 1 2 of the size in megabytes I'm watching the heap size . Changing the value ARGB_8888 to RGB_565 24 bit gives the same size in megabytes after scaling... size in megabytes I'm watching the heap size . Changing the value ARGB_8888 to RGB_565 24 bit gives the same size in megabytes after scaling. Can someone explain this phenomenon and may be give me an advice how to scale bitmaps in 32 bit color space..