Android Studio lock unlock file make read only or writable
Select file in project explorer
Menu:
File - Make File Read-only - to lock
File - Make File Writable - to unlock
Menu:
File - Make File Read-only - to lock
File - Make File Writable - to unlock
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If Android emulator freezes at startup, try create new virtual device with smaller memory and cpu usage, or select older version of Android, or buy new pc with higher performance.
- open AVD MANAGER
- press Create Virtual Device
- select Device with small memory usage (e.g. 480x800 of resolution) - Next
- check - Show downloadable ....
- Download - lower version of system Android, select, press - Next
- check data, Show Advanced Settings, check Use host... and press Finish
Fill the entire canvas with the specified color.
@Override
public void onDraw(Canvas canvas) {
canvas.drawColor(Color.GREEN);
}
int nf = Math.round(5.789f);
System.out.print(nf); // 6
float f = 28.611f;
int n3 = Math.round(f);
System.out.println(n3); // 29
double d = 1234.56;
long lon = Math.round(d);
System.out.println(lon); // 1235
int diff = 90 - 40;
// float fDeleni = diff / 10; // error code
float fDeleni = (float)diff / 10.f; // ok
int nRound = Math.round(fDeleni);
// Caution:
int n2 = (int) 8.999f;
System.out.println(n2); // 8
Convert number int to string Android Java example source code.
int n = 0;
try {
n = Integer.parseInt("21"));
} catch(NumberFormatException e) {
System.out.println("Could not parse " + e);
}
// int to string
String s = String.valueOf(24);
Brand | Samsung |
Model (codename) | i9250 Galaxy Nexus |
Cena, včetně DPH | 9000 |
Veikost Displaye v palcích | 4.65 |
Display-resolution | 1280x720 |
Dotek-typ | kapacitní |
CPU typ | |
CPU MHz | 1200 |
CPU core | 2 |
L2 cache | |
RAM | 1 GB |
ROM | 16 - 32 GB |
GPU | TI OMAP 4460 1,2 GHz dual-core |
NenaMark2 Benchmark | |
GPU-GLBenchmark | |
Baterie mAh | 1750 |
Foto MPx | 5 |
Autofocus | yes |
Video | 480p - 30 frames/s |
Official Android ICS | Android 4.0 Ice Cream Sandwich |
CyanogenMod support | |
Dotek-prstů-max | |
Display-ppi | |
Display-retina | |
Network | GSM&EDGE: 850 / 900 / 1.800 / 1.900 |
Connectivity | |
Pozn. |
samsung-i9250-galaxy-nexus image
Editace: 2015-12-04 19:50:55
Počet článků v kategorii: 396
Url:android-studio-lock-unlock-file-make-read-only-or-writable