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public static void hideAppIcon(Context ctx){
    PackageManager packageManager = ctx.getPackageManager();
ComponentName componentName = new ComponentName(ctx, SplashActivity.class);
    int res = packageManager.getComponentEnabledSetting(componentName);
    if (res == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT
|| res == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
        // 隐藏应用图标
packageManager.setComponentEnabledSetting(componentName, PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
PackageManager.DONT_KILL_APP);
}
}
public static void showAppIcon(Context ctx){
    PackageManager packageManager = ctx.getPackageManager();
ComponentName componentName = new ComponentName(ctx, SplashActivity.class);
    int res = packageManager.getComponentEnabledSetting(componentName);
    if (res == PackageManager.COMPONENT_ENABLED_STATE_DISABLED) {
        // 显示应用图标
packageManager.setComponentEnabledSetting(componentName, PackageManager.COMPONENT_ENABLED_STATE_DEFAULT,
PackageManager.DONT_KILL_APP);
}
}













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