想法是，所有项目的application都能继承这个某一个作为父类，但该不同的东西，可自行设定，直接上代码
public abstract class BaseApp extends Application {
/**
* 版本
*/
public static final double VERSION = 2.8;
public static ApplicationOptions options;
private static Application app;
private static final List< Activity > ACTIVITY_LIST = new ArrayList<> ( );
public static int width = 1080;
public static int height = 1920;
public static float density = 0;
public static String PackageName;
public volatile static boolean isWifi = false;
@Override
public void onCreate ( ) {
super.onCreate ( );
app = this;
PackageName = getContext ( ).getPackageName ( );
ShareUtils.init ( app );
registerActivityLifecycleCallbacks ( activityLifecycleCallbacks );
//设置时区
// TimeZone.setDefault ( TimeZone.getTimeZone ( "UTC" ) );
TimeZone.setDefault ( TimeZone.getTimeZone ( "GMT+08" ) );
registerNetworkCallback ( this );
options = setOptions ( );
Logger.init ( options.logTag, options.isDebug );
initSize ( options.vertical );
}
@SuppressLint ( "MissingPermission" )
public static void shake ( long milliseconds ) {
Vibrator vib =
( Vibrator ) getContext ( ).getSystemService ( Service.VIBRATOR_SERVICE );
if ( android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O ) {
vib.vibrate ( VibrationEffect.createOneShot ( milliseconds, 105 ) );
} else {
vib.vibrate ( milliseconds );
}
}
@SuppressLint ( "MissingPermission" )
public static void shake ( ) {
shake ( 100 );
}
/**
* 设置属性
*
* @return ApplicationOptions
*/
protected abstract ApplicationOptions setOptions ( );
@SuppressWarnings ( "SuspiciousNameCombination" )
private void initSize ( boolean vertical ) {
DisplayMetrics dm = getContext ( ).getResources ( ).getDisplayMetrics ( );
if ( vertical ) {
if ( dm.widthPixels > dm.heightPixels ) {
BaseApp.width = dm.heightPixels;
BaseApp.height = dm.widthPixels;
} else {
BaseApp.width = dm.widthPixels;
BaseApp.height = dm.heightPixels;
}
} else {
if ( dm.widthPixels < dm.heightPixels ) {
BaseApp.width = dm.heightPixels;
BaseApp.height = dm.widthPixels;
} else {
BaseApp.width = dm.widthPixels;
BaseApp.height = dm.heightPixels;
}
}
BaseApp.density = dm.density;
Logger.i ( "分辨率：" + width + "*" + height + ",像素密度1：" + dm.density + ",像素密度2：" + dm.densityDpi );
}
public static Application getApp ( ) {
return app;
}
public static String getPackName ( ) {
return getApp ( ).getPackageName ( );
}
public static Context getContext ( ) {
return app.getApplicationContext ( );
}
private final Application.ActivityLifecycleCallbacks activityLifecycleCallbacks =
new Application.ActivityLifecycleCallbacks ( ) {
@Override
public void onActivityCreated ( @NonNull Activity activity,
@Nullable Bundle savedInstanceState ) {
ACTIVITY_LIST.add ( activity );
}
@Override
public void onActivityStarted ( @NonNull Activity activity ) {
}
@Override
public void onActivityResumed ( @NonNull Activity activity ) {
}
@Override
public void onActivityPaused ( @NonNull Activity activity ) {
}
@Override
public void onActivityStopped ( @NonNull Activity activity ) {
}
@Override
public void onActivitySaveInstanceState ( @NonNull Activity activity,
@NonNull Bundle outState ) {
}
@Override
public void onActivityDestroyed ( @NonNull Activity activity ) {
ACTIVITY_LIST.remove ( activity );
}
};
public static Activity getTopActivity ( ) {
return ACTIVITY_LIST.get ( ACTIVITY_LIST.size ( ) - 1 );
}
public static void exit ( ) {
for ( Activity a : ACTIVITY_LIST ) {
a.finish ( );
}
}
public static void exit ( Activity activity, Class< ? > mClass ) {
for ( Activity a : ACTIVITY_LIST ) {
if ( ! a.getClass ( ).getSimpleName ( ).equals ( activity.getClass ( ).getSimpleName ( ) ) ) {
a.finish ( );
}
}
activity.startActivity ( new Intent ( activity, mClass ) );
activity.finish ( );
}
public static void finishButMain ( ) {
for ( Activity a : ACTIVITY_LIST ) {
String current = a.getClass ( ).getSimpleName ( );
if ( ! current.contains ( "MainActivity" ) ) {
a.finish ( );
}
}
}
@SuppressLint ( "MissingPermission" )
private static void registerNetworkCallback ( Context context ) {
try {
isWifi = NetWorkUtils.isWifi ( );
ConnectivityManager cm =
( ConnectivityManager ) context.getSystemService ( Context.CONNECTIVITY_SERVICE );
NetworkRequest.Builder builder = new NetworkRequest.Builder ( );
builder.addTransportType ( NetworkCapabilities.TRANSPORT_WIFI );
builder.addTransportType ( NetworkCapabilities.TRANSPORT_CELLULAR );
cm.registerNetworkCallback ( builder.build ( ), CALLBACK );
} catch ( Exception e ) {
e.printStackTrace ( );
}
}
private final static ConnectivityManager.NetworkCallback CALLBACK =
new ConnectivityManager.NetworkCallback ( ) {
@Override
public void onCapabilitiesChanged ( @NonNull Network network,
@NonNull NetworkCapabilities capabilities ) {
super.onCapabilitiesChanged ( network, capabilities );
fresh ( );
}
@Override
public void onLost ( @NonNull Network network ) {
super.onLost ( network );
fresh ( );
}
@Override
public void onAvailable ( @NonNull Network network ) {
super.onAvailable ( network );
fresh ( );
}
private synchronized void fresh ( ) {
boolean b = NetWorkUtils.isWifi ( );
if ( b != isWifi ) {
isWifi = b;
ListenerManager.callActionBack ( ActionType.NET_WORK_CHANGE_CODE, b ?
"1" : "0" );
}
}
};
}
使用方法
public class LuckApp extends BaseApp {
@Override
public void onCreate ( ) {
super.onCreate ( );
LitePal.initialize ( this );
if ( BuildConfig.DEBUG ) {
SQLiteStudioService.instance ( ).start ( getContext ( ) );
}
}
@Override
protected ApplicationOptions setOptions ( ) {
return ApplicationOptions.create ( )
.setMainColorByRes ( R.color.main )
.setDebug ( BuildConfig.DEBUG )
.setLogTag ( "Luck" )
;
}
}